World sea water temperatures

Water temperature in Islamorada (FL) in April

Is it warm enough to swim in Islamorada in April? Average water temperature in Islamorada in April is 78.6°F and therefore suitable for comfortable swimming. The warmest sea in Islamorada in April is 83.7°F, and the coldest is 74.1°F. Average high air temperature in Islamorada in April is 82°F, and average low temperature is 71°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Islamorada

Changes water temperature in Islamorada in April 2025, 2024

To get an accurate forecast for the water temperature in Islamorada for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Islamorada, 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 178.8°F76.3°F74.1°F79.5°F
April 279.5°F76.8°F74.1°F79.7°F
April 379.5°F77°F75°F80.4°F
April 479.7°F77.5°F74.7°F80.6°F
April 579.5°F76.5°F74.3°F80.6°F
April 679.5°F76.6°F74.5°F81.3°F
April 779.7°F76.8°F74.3°F80.8°F
April 879.2°F76.8°F75°F80.2°F
April 979.5°F76.6°F75.9°F80.1°F
April 1078.8°F77°F75.9°F80.8°F
April 1178.3°F76.8°F76.1°F81.3°F
April 1278.4°F77.5°F76.6°F81.1°F
April 1377.4°F77°F76.1°F81.3°F
April 1477°F77°F76.3°F81.3°F
April 1577.5°F76.8°F75.9°F81.9°F
Day 2025 2024 Min Max
April 1677.5°F76.8°F76.3°F82.6°F
April 1778.3°F77.5°F75.9°F82.2°F
April 1878.1°F77.7°F76.3°F82.9°F
April 1977.9°F77.7°F75.9°F83.1°F
April 2077.9°F78.8°F76.3°F82.9°F
April 2177.9°F78.8°F76.6°F83.3°F
April 2277.9°F79.2°F76.3°F83.7°F
April 2378.1°F79°F76.6°F82.9°F
April 2478.1°F79.3°F76.6°F82.6°F
April 2578.4°F79.5°F76.6°F82.8°F
April 2678.8°F79.3°F77.2°F83.1°F
April 2779.5°F78.8°F76.8°F83.1°F
April 2879.7°F79°F77°F82.8°F
April 2979.5°F78.4°F77.4°F81.9°F
April 3079.5°F79.3°F77.5°F82.6°F
Islamorada water temp chart in April

Average water temperature in Islamorada in April over a decade

20162017201820192020
78.3°F78.3°F78.8°F79.2°F81.1°F
20212022202320242025
78.6°F79.2°F80.4°F77.7°F78.6°F

Islamorada sea state in April

Chart comparing the height of waves in Islamorada 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 Islamorada in April

Weather and climate in Islamorada in April

This data display average monthly climate indicators in Islamorada in April based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature82°F
  • Average LOW temperature71°F
  • Average rainfall51mm/2''

Islamorada 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
Plantation78.6°F73.9°F84.6°F
Tavernier78.6°F74.1°F84°F
Fiesta Key78.6°F73.9°F83.7°F
Long Key78.6°F74.3°F82.9°F
Rodriguez Key78.6°F74.5°F83.1°F
Layton78.6°F73.8°F84.4°F
Molasses Reef78.6°F74.7°F82.9°F
Pennekamp78.6°F74.5°F83.1°F
Duck Key78.6°F74.3°F83.1°F
Blackwater Sound78.6°F73.9°F84.4°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 Islamorada 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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