World sea water temperatures

Water temperature in Casey Key (FL) in April

Is it warm enough to swim in Casey Key in April? Average water temperature in Casey Key in April is 74.7°F and therefore suitable for comfortable swimming. The warmest sea in Casey Key in April is 81°F, and the coldest is 64.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Casey Key

Changes water temperature in Casey Key in April 2025, 2024

To get an accurate forecast for the water temperature in Casey 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 Casey 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 174.7°F72.9°F64.8°F78.3°F
April 275.6°F74.8°F65.3°F77.4°F
April 376.6°F74.7°F66.4°F77.2°F
April 476.1°F74.8°F66.7°F77.5°F
April 577.9°F74.1°F67.8°F77.9°F
April 678.8°F74.1°F67.6°F78.8°F
April 777.7°F73.2°F67.8°F77.7°F
April 877.2°F73°F68.7°F79.7°F
April 976.5°F72.1°F69.3°F79.3°F
April 1075.9°F73.6°F69.1°F78.8°F
April 1175.7°F73.8°F69.3°F77.9°F
April 1274.8°F73.8°F69.3°F78.1°F
April 1374.3°F73.2°F69.1°F78.6°F
April 1474.1°F73.2°F70°F78.6°F
April 1574.7°F73.4°F70°F79.5°F
Day 2025 2024 Min Max
April 1674.1°F73.4°F69.6°F79.3°F
April 1774.7°F75°F68.9°F79.5°F
April 1874.3°F75°F69.1°F79.2°F
April 1974.8°F76.3°F69.4°F80.2°F
April 2074.5°F77.2°F69.8°F80.2°F
April 2173.9°F76.6°F71.1°F79.9°F
April 2275°F77°F70.9°F79.5°F
April 2376.1°F76.3°F70.7°F79.7°F
April 2475.9°F76.3°F70.2°F80.1°F
April 2577.4°F76.1°F71.2°F80.4°F
April 2677.9°F75.7°F71.2°F81°F
April 2779°F75.6°F71.8°F80.4°F
April 2878.6°F75.4°F72.9°F79.7°F
April 2978.1°F76.3°F73°F79.5°F
April 3078.6°F76.5°F73°F80.4°F
Casey Key water temp chart in April

Average water temperature in Casey Key in April over a decade

20162017201820192020
73.9°F73.9°F74.1°F75.6°F78.4°F
20212022202320242025
75.9°F75.6°F77.9°F74.8°F76.1°F

Casey Key sea state in April

Chart comparing the height of waves in Casey Key in April over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Casey Key in April

Casey 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

Temperature in neighboring cities

The nearest locations with the average water temperature in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Turtle Beach74.7°F64.6°F80.8°F
Bayshore Gardens74.5°F64.4°F80.8°F
Ellenton74.5°F64.4°F80.8°F
Palmetto74.5°F64.4°F80.8°F
Longboat Key74.5°F64.2°F80.6°F
Coquina Beach74.5°F64.2°F80.6°F
Grove City75.2°F65.3°F81.3°F
Manasota Key75.2°F65.3°F81.3°F
Englewood75.2°F65.3°F81.3°F
Blind Pass Beach75.2°F65.3°F81.3°F

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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 Casey 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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