Siesta beach water temp

West wind 5 to 8 mph. Friday. Mostly sunny, with a high near 90. Southeast wind 6 to 13 mph becoming south southwest in the afternoon. Friday Night. Partly cloudy, with a low around 77. South wind around 9 mph. Saturday. A 30 percent chance of showers and thunderstorms after 2pm.

Siesta beach water temp. We have several online tools and resources to check beach conditions while planning your trip to Sarasota, or packing up for a day at the beach. Mote Marine Laboratory provides a Beach Conditions report updated twice daily at 10 a.am. and 3 p.m. Sarasota County keeps an updated list of all its local beaches and public parks with amenities ...

The average temperature in Siesta Key in April for a typical day ranges from a high of 81°F (27°C) to a low of 68°F (20°C). Some would describe it as pleasantly warm with a gentle breeze. For comparison, the hottest month in Siesta Key, August, has days with highs of 87°F (31°C) and lows of 80°F (27°C).The coldest month, January has days with highs of …

Is it warm enough to swim in Sarasota in March? Average water temperature in Sarasota in March is 69.3°F and therefore suitable for comfortable swimming. The warmest sea in Sarasota in March is 78.3°F, and the coldest is 58.6°F. Average high air temperature in Sarasota in March is 77°F, and average low temperature is 57°F.Current ocean temperature in Hermosa Beach. Water temperature in Hermosa Beach today is 59.5°F. Based on our historical data over a period of ten years, the warmest water in this day in Hermosa Beach was recorded in 2020 and was 64.6°F, and the coldest was recorded in 2007 at 57.9°F. Sea water temperature in Hermosa …Monthly Siesta Key water temperature chart. The bar chart below shows the average monthly sea temperatures at Siesta Key over the year. Average monthly sea temperatures in Siesta Key Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec °C: 17.7: 18.0: 19.3: 22.8: 25.6: 28.0: 29.6: 30.4: 29.2: 27.3: 23.8: 20.3 °F: 63.9: 64.4: ... Panama …Here you will find the current Siesta Beach Report and Siesta Key weather conditions. We have UV index information sunset times, the extended beach forecast, rain chances, …Forecast for Siesta Key, FL. Siesta Key, FL Weather Forecast. Marine Forecast: Englewood to Tarpon Springs FL out 20 NM. FORECAST; Siesta Key, Florida Lat: 27.28N, Lon: 82.57W. Current Conditions Updated: 1053 AM EDT MON MAY 13 2024 . Partly Cloudy Temp: N/A .

Is it warm enough to swim in Siesta Key in December? Average water temperature in Siesta Key in December is 69.1°F and therefore suitable for comfortable swimming. The warmest sea in Siesta Key in December is 74.8°F, and the coldest is 61.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in ... Get the monthly weather forecast for Siesta Key, FL, including daily high/low, historical averages, to help you plan ahead. Siesta Key & Sarasota Weather: Average monthly high and low temperatures, rainfall and Gulf of Mexico water temperature for Siesta Key & Sarasota, Florida.This was our first time at Siesta Key Beach. We didn't see a drop of rain all week, with ocean water temp in low 80's and refreshing. We stayed near the public beach, which was the most crowded beach I've ever seen, especially given it was in late May. Sand was soft and cool as advertised. Ocean calm overall and good for children.Home > United States > Florida > Florida Gulf Coast > Siesta Key. Is it warm enough to swim in Siesta Key in August? Average water temperature in Siesta Key in August is 86.7°F and therefore suitable for comfortable swimming. The warmest sea in Siesta Key in August is 91°F, and the coldest is 83.7°F. To find out the sea temperature today and ...Photos (3) Today's Cocoa Beach Pier sea temperature is 79 °F. Statistics for 10 May (1981–2005) – mean: 78 °F , range: 75 ° F to 81 ° F. Hot air temperatures, feeling like 90 °F once we account for wind, and very warm water temperature (79 °F) at Cocoa Beach Pier. Clouds should reduce UV so boardshorts and a rash vest should be ok.4 days ago · Water temperature in Vero Beach today is 77.2°F. Based on our historical data over a period of ten years, the warmest water in this day in Vero Beach was recorded in 2021 and was 79.7°F, and the coldest was recorded in 2009 at 72.7°F. Sea water temperature in Vero Beach is expected to rise to 78.1°F in the next 10 days. The average water temperature around Siesta Key reaches 66°F in winter and 73°F in spring. In summer the average temperature rises to 86°F, and in autumn it’s 80°F. View Sarasota County’s live Siesta Beach camera and see what today has to offer.

Is it warm enough to swim in Vero Beach in March? Average water temperature in Vero Beach in March is 72.3°F and therefore suitable for comfortable swimming. The warmest sea in Vero Beach in March is 77.4°F, and the coldest is 66.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Vero Beach.Water temperature in Ormond Beach today is 75.9°F. Based on our historical data over a period of ten years, the warmest water in this day in Ormond Beach was recorded in 2019 and was 77.7°F, and the coldest was recorded in 2010 at 72.7°F. Sea water temperature in Ormond Beach is expected to rise to 76.6°F in the next 10 days.In recent years, at the beginning of the month, the temperature value here is at around 64°F, and by the end of the month the water warms up to 71°F. Average water temperature in the first decade is 63°F, in the middle of the month - 67°F, and at the end - 68°F. Average, minimum and maximum water temperature in Sarasota in February by …Everything you need to know about napping in five minutes or less, including why it's beneficial and which countries take siestas. Want to escape the news cycle? Try our Weekly Obs...Weather in December. December, the first month of the winter in Siesta Key, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 60.8°F (16°C). The average high-temperature in December, at an agreeable 72.5°F (22.5°C), reveals a modest deviation from November 's 76.3°F (24.6 ... Siesta Key is a barrier island by Sarasota, FL, which is located at about the midpoint between Tampa, FL and Ft. Myers, FL. You can see us on Google Maps by clicking here. Please note the satellite view of our beach that is shown by Google is outdated. Our beach was “re-nourished” in the Spring of 2016 and is now about 125 feet wide.

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Mar 14, 2022 · On average, the outside temperature can range from 72-83F/22.2-28.3C in Central and Southern Florida in March and April. Water temperatures will be 75-76F/23.8-24.4C on average (min. 72F/22.2C and max 82F/27.7C) both on the Atlantic Ocean and Gulf of Mexico. Annual Weather Averages Near Siesta Key. Averages are for Sarasota-Bradenton International Airport, which is 10 miles from Siesta Key. Based on weather reports collected during 1992–2021.Monthly Siesta Key water temperature chart. The bar chart below shows the average monthly sea temperatures at Siesta Key over the year. Average monthly sea temperatures in Siesta Key Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec °C: 17.7: 18.0: 19.3: 22.8: 25.6: 28.0: 29.6: 30.4: 29.2: 27.3: 23.8: 20.3 °F: 63.9: 64.4: ... Saint Pete …The month of the year in Siesta Key with the warmest water is August, with an average temperature of 86°F. The time of year with cooler water lasts for 3.2 months, from December 20 to March 26, with an average temperature below 70°F. The month of the year in Siesta Key with the coolest water is February, with an average temperature of 66°F.The water temperature at Siesta Key Beach is extremely warm, reaching up to 31°C (88°F) in the months of July, August, and September. During this time, in the late summer, a wetsuit is normaly not required for surfing, swimming, snorkelling, or diving at Siesta Key Beach. Nevertheless, during late winter, water temperatures cool down to ...

+82.4 °F. 14 days. forecast. Siesta Key. monthly. weather. Siesta Key. Sea water temperature for the last 10 days: Monthly sea water temperature, °F. January. …Current ocean temperature in Longboat Key. Water temperature in Longboat Key today is 82°F. Based on our historical data over a period of ten years, the warmest water in this day in Longboat Key was recorded in 2019 and was 82.4°F, and the coldest was recorded in 2007 at 76.6°F. Sea water temperature in Longboat Key is expected to …Data source and citation. Raw data for the calculations made to find the sea surface temperature in Siesta Key comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.. The water temperature data is constructed by combining observations …Minimum water temperature in Siesta Key in June is 78°F, maximum - 89°F. In recent years, at the beginning of the month, the temperature value here is at around 81°F, and by the end of the month the water warms up to 86°F. Average water temperature in the first decade is 82°F, in the middle of the month - 84°F, and at the end - 86°F.We have several online tools and resources to check beach conditions while planning your trip to Sarasota, or packing up for a day at the beach. Mote Marine Laboratory provides a Beach Conditions report updated twice daily at 10 a.am. and 3 p.m. Sarasota County keeps an updated list of all its local beaches and public parks with amenities ...Weather. Water temp. Tide times. Siesta Key Beach Water Temperature. 26.9°C / 80.5°F. The sea at Siesta Key Beach feels hot so don't forget to pack your bathers! Average Sea …Is it warm enough to swim in Sarasota in March? Average water temperature in Sarasota in March is 69.3°F and therefore suitable for comfortable swimming. The warmest sea in Sarasota in March is 78.3°F, and the coldest is 58.6°F. Average high air temperature in Sarasota in March is 77°F, and average low temperature is 57°F.Water temperature in Newcastle today is 21°C. Based on our historical data over a period of ten years, the warmest water in this day in the Tasman Sea near Newcastle was recorded in 2019 and was 22.4°C, and the coldest was recorded in 2018 at 19.9°C. Sea water temperature in Newcastle is expected to drop to 20.6°C in the next 10 days.Get the monthly weather forecast for Siesta Key, FL, including daily high/low, historical averages, to help you plan ahead.Lasting approximately 4.0 months, from June to October, these warm waters boast an average temperature above 82°F. August shines as the month with the warmest water, …The average water temperature around Siesta Key reaches 66°F in winter and 73°F in spring. In summer the average temperature rises to 86°F, and in autumn it’s 80°F. View Sarasota County’s live Siesta Beach camera and see what today has to offer.Water temperature in Nerja today is 18.2°C. Based on our historical data over a period of ten years, the warmest water in this day in the Alboran Sea near Nerja was recorded in 2014 and was 19.9°C, and the coldest was recorded in 2010 at 16.4°C. Sea water temperature in Nerja is expected to rise to 18.4°C in the next 10 days.

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On May 15, Temp is reporting Q4 earnings.Wall Street analysts expect Temp will report earnings per share of ¥18.27.Go here to track Temp stock pri... On May 15, Temp will report la... Is it warm enough to swim in Siesta Key in April? Average water temperature in Siesta Key in April is 74.5°F and therefore suitable for comfortable swimming. The warmest sea in Siesta Key in April is 80.8°F, and the coldest is 64.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Siesta Key. The average temperature in Siesta Key in April for a typical day ranges from a high of 81°F (27°C) to a low of 68°F (20°C). Some would describe it as pleasantly warm with a gentle breeze. For comparison, the hottest month in Siesta Key, August, has days with highs of 87°F (31°C) and lows of 80°F (27°C).The coldest month, January has days with highs of …Three of the best beaches on the west coast of Florida are Naples Beach, Clearwater Beach and Siesta Key. Clearwater Beach is one of the best beaches because of the number of water...Is it warm enough to swim in Siesta Key in July? Average water temperature in Siesta Key in July is 86.2°F and therefore suitable for comfortable swimming. The warmest sea in Siesta Key in July is 89.1°F, and the coldest is 83.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Siesta Key.Get the monthly weather forecast for Siesta Key, FL, including daily high/low, historical averages, to help you plan ahead.But it is worth remembering that at such a water temperature, various disease-causing organisms multiply very quickly. Minimum water temperature in Siesta Key in May is 71°F, maximum - 86°F. In recent years, at the beginning of the month, the temperature value here is at around 77°F, and by the end of the month the water warms up to 82°F ...Re: Current water temperature at Siesta Key Beach? 13 years ago. almost 80 in the bay, gulf should be fairly close to that, at least mid to upper 70. Report inappropriate content. darlsay.1. Miami Beach. Average Temperature in January: 74° / 62°. Average Water Temperature in January: 71°. Miami Beach is one of the warmest places in Florida in January. Visitors can find plenty of sand, sun, and fun at …

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85.6. 83.3. 77.5. 70.5. Siesta Key weather & temperature averages ». Siesta Key, United States March average sea temperature. Marine / ocean climate data updated daily, surface sea temperatures and recorded in degrees centigrade and farenheit.Siesta Key is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water. The average surface water temperature in Siesta Key is essentially constant during July, remaining within 1°F of 85°F throughout.If you're looking for the turquoise water and white sand beaches usually found in the Caribbean, Florida is an ideal destination. To satisfy your Caribbean craving, we rounded up a...Siesta Key, Florida is known for its stunning beaches and crystal-clear waters. Whether you’re planning a family vacation or a romantic getaway, finding the perfect oceanfront rent...Water temperature in Santa Rosa Beach today is 80.1°F. Based on our historical data over a period of ten years, the warmest water in this day in Santa Rosa Beach was recorded in 2009 and was 77.7°F, and the coldest was recorded in 2013 at 72.1°F. Sea water temperature in Santa Rosa Beach is expected to drop to 77°F in the …Minimum water temperature in Siesta Key In December is 60°F, maximum - 75°F. In recent years, at the beginning of the month, the temperature value here is at around 69°F, and by the end of the month the water warms up to 65°F. Average water temperature in the first decade is 69°F, in the middle of the month - 69°F, and at the end - 66°F.Today's weather in Siesta Key. The sun rose at 6:42am and the sunset will be at 8:11pm. There will be 13 hours and 29 minutes of sun and the average temperature is 81°F. At the moment water temperature is 78°F …How will hydro energy look in the future? Keep reading to learn about hydro power and what it will look like in the future. Advertisement From devastating tsunamis to being pulled ...Siesta Beach, Siesta Key: "Is the water temp warm enough to swim in..." | Check out 9 answers, plus see 8,673 reviews, articles, and 4,972 photos of Siesta Beach, ranked No.1 on Tripadvisor among 90 attractions in Siesta Key.Siesta Key is a barrier island by Sarasota, FL, which is located at about the midpoint between Tampa, FL and Ft. Myers, FL. You can see us on Google Maps by clicking here. Please note the satellite view of our beach that is shown by Google is outdated. Our beach was “re-nourished” in the Spring of 2016 and is now about 125 feet wide. ….

Weather. Water temp. Tide times. Siesta Key Beach Water Temperature. 26.9°C / 80.5°F. The sea at Siesta Key Beach feels hot so don't forget to pack your bathers! Average Sea …20°C / 68°F. (clear sky) Wind. 6 mph. Humidity. 74%. The measurements for the water temperature in Siesta Key, Florida are provided by the daily satellite readings provided by the NOAA. The temperatures given are …Water temperature in Englewood today is 84°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Mexico near Englewood was recorded in 2019 and was 82.6°F, and the coldest was recorded in 2007 at 76.1°F. Sea water temperature in Englewood is expected to drop to 80.6°F in the next …Sarasota County. ›. Siesta Key. Get today's most accurate Siesta Key surf report with live HD surf cam and 16-day surf forecast for swell, wind, tide and wave conditions.If you need to fill a temporary position or cover a staffing gap, a temp agency could be a solution. Learn how to hire temporary employees. Human Resources | How To REVIEWED BY: He...The average surface water temperature in Siesta Key is gradually decreasing during January, falling by 2°F, from 68°F to 66°F, over the course of the month. Average Water Temperature in January in Siesta Key Winter Link. Download. Compare. Averages: Jan F M A M J J A S O N D. History: 2024 2023 2022 2021 2020The swimming season in this location lasts all year round. Average annual water temperature on the coast in Cocoa Beach is 77°F, by the seasons: in winter 71°F, in spring 75°F, in summer 83°F, in autumn 79°F. Minimum water temperature (67°F) in Cocoa Beach it happens in February, maximum (86°F) in August. In Siesta Key, during the entire year, the rain falls for 183.1 days and collects up to 34.92" (887mm) of precipitation. Ocean temperature In Siesta Key, Florida, in December, the average water temperature is 69.3°F (20.7°C). Note: Most people find it challenging to enjoy swimming in water that is 69.3°F (20.7°C). As water temperature falls ... The month of the year in Siesta Key with the warmest water is August, with an average temperature of 86°F. The time of year with cooler water lasts for 3.2 months, from December 20 to March 26, with an average temperature below 70°F. The month of the year in Siesta Key with the coolest water is February, with an average temperature of 66°F. Siesta beach water temp, Water temperature in Destin today is 77°F. Based on our historical data over a period of ten years, the warmest water in this day in Destin was recorded in 2018 and was 78.8°F, and the coldest was recorded in 2013 at 72.3°F. Sea water temperature in Destin is expected to rise to 78.1°F in the next 10 days., On average, the outside temperature can range from 72-83F/22.2-28.3C in Central and Southern Florida in March and April. Water temperatures will be 75-76F/23.8-24.4C on average (min. 72F/22.2C and max 82F/27.7C) both on the Atlantic Ocean and Gulf of Mexico., Current weather in Siesta Key, FL. Check current conditions in Siesta Key, FL with radar, hourly, and more., Winterizing your home is just a fancy way of saying you're making it more energy efficient. here are my top seven suggestions that you should think about doing to help protect your..., Minimum water temperature in Siesta Key in June is 78°F, maximum - 89°F. In recent years, at the beginning of the month, the temperature value here is at around 81°F, and by the end of the month the water warms up to 86°F. Average water temperature in the first decade is 82°F, in the middle of the month - 84°F, and at the end - 86°F., Siesta surf Forecast / Florida – Gulf / USA. 12 Day Weather and Surf, issued 1 am Wednesday 08 May 2024 EDT. Siesta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots. Today's Siesta sea temperature is 79°F (Statistics for 08 May 1981-2005 - mean: 77 °F max: 80 °F min: 73 °F) , Siesta surf Forecast / Florida – Gulf / USA. 12 Day Weather and Surf, issued 1 am Wednesday 08 May 2024 EDT. Siesta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots. Today's Siesta sea temperature is 79°F (Statistics for 08 May 1981-2005 - mean: 77 °F max: 80 °F min: 73 °F), Water temperature in Pompano Beach today is 81.9°F. Based on our historical data over a period of ten years, the warmest water in this day in Pompano Beach was recorded in 2021 and was 82°F, and the coldest was recorded in 2018 at 79°F. Sea water temperature in Pompano Beach is expected to drop to 81.1°F in the next 10 days., Annual Weather Averages Near Siesta Key. Averages are for Sarasota-Bradenton International Airport, which is 10 miles from Siesta Key. Based on weather reports collected during 1992–2021., August is the month with the hottest water temperature at 86.5°F / 30.3°C. The coldest month is February with an ø water temperature of 64.9°F / 18.3°C. ... Siesta Beach: Marina for Sailing, Boat adventures, fishing: Marina @ Bayshore Gardens: Attraction: Ringling Museum Complex: Golf Course: The Groves Golf Course, The Meadows …, Siesta Key, a stunning barrier island located off the coast of Sarasota, Florida, has become a popular destination for beach lovers and vacationers seeking a laid-back and relaxing..., 90°/ 75°. 24%. Sun 26. 90°/ 74°. 24%. Be prepared with the most accurate 10-day forecast for Siesta Key, FL with highs, lows, chance of precipitation from The Weather Channel and Weather.com., Water temperature in Siesta Key right now. data updated 40 minutes ago. 80 °F. yesterday: 80°F. a week ago: 75°F. Trend: slow rise. Today water temperature in Siesta Key is 80.1°F. It is very warm and comfortable water for long swimming in any body of water., This was our first time at Siesta Key Beach. We didn't see a drop of rain all week, with ocean water temp in low 80's and refreshing. We stayed near the public beach, which was the most crowded beach I've ever seen, especially given it was in late May. Sand was soft and cool as advertised. Ocean calm overall and good for children., In general, the beaches in the Houston area have ocean water that is not clear. When I was young and didn’t see danger everywhere (sharks, rip currents, god-knows-what-el..., The swimming season in this location lasts all year round. Average annual water temperature on the coast in Cocoa Beach is 77°F, by the seasons: in winter 71°F, in spring 75°F, in summer 83°F, in autumn 79°F. Minimum water temperature (67°F) in Cocoa Beach it happens in February, maximum (86°F) in August., From lounging on the beach to water adventures, Bahamas shore excursions are packed with fun in the sun and sea. Here are our favorite tours for cruisers. From lazy lounging on the..., Average water temperature in Siesta Key in October is 80.8°F and therefore suitable for comfortable swimming. The warmest sea in Siesta Key in October is 86.2°F, and the coldest is 72.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Siesta Key., Past Weather in Siesta Key, Florida, USA — Yesterday and Last 2 Weeks. Time/General. Weather. Time Zone. DST Changes. Sun & Moon. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 83 °F. Passing clouds. , Water temperature in Sarasota today is 82.9°F. Based on our historical data over a period of ten years, the warmest water in this day in Sarasota was recorded in 2021 and was 81.5°F, and the coldest was …, Hi: 90°F. Precip: 30%. Weather Forecast In Detail: Forecast Issued: 633 AM EDT Mon May 13 2024. Today ...Mostly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southeast winds 10 to 15 mph, becoming south this afternoon. Chance of rain 20 percent., Cooler Waters (December 21 - March 27):During Siesta Key's cooler season, the water temperatures offer a refreshing contrast to the warm summers. Lasting around 3.2 …, Siesta Key Temperature Yesterday. Maximum temperature yesterday: 86 °F (at 2:53 pm) Minimum temperature yesterday: 74 °F (at 6:53 am) Average temperature yesterday: 80 °F. High & Low Weather Summary for the Past Weeks Temperature Humidity Pressure; High: 90 °F (May 8, 1:53 pm), Introduction: Siesta Key, with its breathtaking beaches and crystal-clear waters, beckons water enthusiasts from around the world. Understanding the seasonal variations in water temperature allows visitors to plan their aquatic adventures accordingly. In this blog post, we'll explore the average water temperatures throughout the year, highlighting the …, Minimum water temperature in Siesta Key in February is 59°F, maximum - 73°F. In recent years, at the beginning of the month, the temperature value here is at around 61°F, and by the end of the month the water warms up to 68°F. Average water temperature in the first decade is 62°F, in the middle of the month - 65°F, and at the end - 67°F., April. With an average high temperature of 81 degrees, April is a peak month for a beach vacation to Siesta Key. April is also one of the busiest months for tourists, so expect high rates and busy restaurants. There is minimal precipitation in April, averaging just .16 inches of rain., Average water temperature in Siesta Key for December The average, high, and low temperatures below should help you if you can swim in the water in Siesta Key in December. 20.14° C, Water temperature in Destin today is 77°F. Based on our historical data over a period of ten years, the warmest water in this day in Destin was recorded in 2018 and was 78.8°F, and the coldest was recorded in 2013 at 72.3°F. Sea water temperature in Destin is expected to rise to 78.1°F in the next 10 days., 3 days ago · Water temperature in Crescent Beach today is 75.9°F. Based on our historical data over a period of ten years, the warmest water in this day in Crescent Beach was recorded in 2019 and was 77.7°F, and the coldest was recorded in 2013 at 73°F. Sea water temperature in Crescent Beach is expected to rise to 76.6°F in the next 10 days. , Current ocean temperature in Venice Beach. Water temperature in Venice Beach today is 59.7°F. Based on our historical data over a period of ten years, the warmest water in this day in Venice Beach was recorded in 2020 and was 64.2°F, and the coldest was recorded in 2007 at 56.8°F. Sea water temperature in Venice Beach is expected …, Siesta surf Forecast / Florida – Gulf / USA. 12 Day Weather and Surf, issued 1 am Wednesday 08 May 2024 EDT. Siesta surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots. Today's Siesta sea temperature is 79°F (Statistics for 08 May 1981-2005 - mean: 77 °F max: 80 °F min: 73 °F), 85.6. 83.3. 77.5. 70.5. Siesta Key weather & temperature averages ». Siesta Key, United States February average sea temperature. Marine / ocean climate data updated daily, surface sea temperatures and recorded in degrees centigrade and farenheit., Cooler Waters (December 21 - March 27):During Siesta Key's cooler season, the water temperatures offer a refreshing contrast to the warm summers. Lasting around 3.2 months, from December to March, the cooler waters average below 70°F. February emerges as the coolest month, with an average water temperature of 66°F.