World sea water temperatures

Water temperature in Shell Key (FL) in April

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Is it warm enough to swim in Shell Key in April? Average water temperature in Shell Key in April is 74.7°F and therefore suitable for comfortable swimming. The warmest sea in Shell Key in April is 80.4°F, and the coldest is 64°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Shell Key

Changes water temperature in Shell Key in April 2025, 2024

To get an accurate forecast for the water temperature in Shell Key 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 Key, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 174.3°F72.5°F64°F78.6°F
April 275.9°F74.1°F69.3°F75.9°F
April 377.4°F74.5°F69.6°F77.4°F
April 476.5°F72.9°F66.7°F79°F
April 578.1°F73°F67.6°F79.2°F
April 677.9°F73°F68.2°F77.9°F
April 777.9°F72.9°F68.2°F77.9°F
April 877.5°F73°F69.6°F77.5°F
April 975.9°F72°F69.6°F79.5°F
April 1074.8°F73°F69.6°F78.6°F
April 1174.3°F72.9°F69.8°F77.7°F
April 1274.3°F72.9°F70.2°F78.6°F
April 1373.6°F72.5°F69.8°F78.8°F
April 1473.6°F72.7°F72.5°F78.8°F
April 1575°F73°F70.5°F78.3°F
Day 2025 2024 Min Max
April 1674.5°F73.2°F69.4°F78.4°F
April 1774.1°F75.2°F68.7°F78.4°F
April 1874.3°F75.2°F68.7°F78.4°F
April 1975.6°F77°F68.9°F79.2°F
April 2074.7°F77.5°F69.3°F78.6°F
April 2174.3°F77.4°F71.4°F78.6°F
April 2275.7°F77.4°F70.2°F79.5°F
April 2377.4°F76.5°F70.3°F79°F
April 2477.4°F75.9°F70.2°F80.1°F
April 2577.5°F75.9°F71.4°F80.4°F
April 2678.8°F75.9°F71.6°F80.4°F
April 2779.2°F75.4°F73.4°F79.7°F
April 2879°F75.6°F73.8°F79°F
April 2979.9°F75.7°F73.4°F79.9°F
April 3079.2°F76.5°F73.2°F79.2°F
Shell Key water temp chart in April

Average water temperature in Shell Key in April over a decade

20162017201820192020
74.5°F74.7°F74.8°F75.4°F77.7°F
20212022202320242025
75.6°F75.6°F77.7°F74.5°F76.3°F

Shell Key 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 April?

Want to know where the water temperature in April 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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Our report for Shell Key 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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