World sea water temperatures

Water temperature in Shell Island (FL) in May

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Is it warm enough to swim in Shell Island in May? Average water temperature in Shell Island in May is 76.8°F and therefore suitable for comfortable swimming. The warmest sea in Shell Island in May is 84.7°F, and the coldest is 70.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Shell Island

Changes water temperature in Shell Island in May 2025, 2024

To get an accurate forecast for the water temperature in Shell Island for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Shell Island, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 177.2°F73.6°F70.5°F77.2°F
May 278.3°F74.8°F70.9°F78.3°F
May 377°F75.7°F70.5°F77°F
May 477.2°F77°F71.2°F77.7°F
May 576.5°F77.5°F71.1°F77.7°F
May 675.4°F79.3°F73.2°F79.3°F
May 775.7°F79°F70.2°F79°F
May 877.2°F79.5°F71.1°F79.5°F
May 977.2°F79.7°F75.6°F79.7°F
May 1076.8°F79.5°F72.3°F79.5°F
May 1176.6°F78.6°F72.7°F80.6°F
May 1276.8°F77.2°F76.8°F77.7°F
May 1376.6°F76.5°F72.1°F78.6°F
May 1477.4°F77.4°F72.1°F78.6°F
May 1576.8°F77.5°F72.5°F79.3°F
Day 2025 2024 Min Max
May 1677.7°F77.9°F73.6°F79.5°F
May 1778.3°F78.1°F74.8°F78.6°F
May 1880.4°F78.1°F74.3°F80.4°F
May 1980.4°F78.6°F74.8°F80.4°F
May 2080.4°F79.3°F74.5°F80.4°F
May 2180.6°F79°F74.3°F81°F
May 2280.8°F79.2°F74.5°F81.3°F
May 2381.1°F79.5°F74.5°F81.9°F
May 2481.1°F81°F75.2°F81.1°F
May 2581.7°F81.7°F75.2°F81.7°F
May 2681.7°F81.9°F75.4°F82.6°F
May 2782.8°F81.3°F76.1°F84°F
May 2882.9°F81.3°F76.3°F84.7°F
May 2981.9°F82.6°F75.7°F82.6°F
May 3082.4°F82°F75.7°F82.4°F
May 3179.9°F82.2°F78.1°F82.2°F
Shell Island water temp chart in May

Average water temperature in Shell Island in May over a decade

20162017201820192020
77°F76.5°F77.4°F79.7°F75.9°F
20212022202320242025
75.9°F78.3°F77°F79°F79°F

Shell Island water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in May?

Want to know where the water temperature in May is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Shell Island is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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