Water temperature in Looe Key (FL) in April

Is it warm enough to swim in Looe Key in April? Average water temperature in Looe Key in April is 78.6°F and therefore suitable for comfortable swimming. The warmest sea in Looe Key in April is 83.5°F, and the coldest is 74.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Looe Key

Changes water temperature in Looe Key in April 2025, 2024

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

Average water temperature in Looe Key in April over a decade

Chart comparing the height of waves in Looe 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.

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

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

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Our report for Looe 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.