Key West in April
Find out everything about the water temperature in Key West in April. Average, minimum and maximum recorded temperatures as well as daily temperature in April for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in April
Minimum:
73.8 °F
Average:
78.9 °F
Maximum:
83.8 °F
Sea water temperature in Key West in April
In the city of Key West, the month of April is a great time for swimming. The minimum recorded temperature during this month was 73.8°F on April 7, 2021, with an average temperature being 78.9°F and a maximum temperature reaching 83.8°F on April 20, 2020.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Apr 1 | 77.1°F | 76.0°F | 79.7°F |
| Apr 2 | 77.6°F | 76.2°F | 80.7°F |
| Apr 3 | 78.0°F | 77.5°F | 81.3°F |
| Apr 4 | 78.1°F | 78.0°F | 81.4°F |
| Apr 5 | 78.4°F | 77.5°F | 81.9°F |
| Apr 6 | 78.0°F | 77.0°F | 80.5°F |
| Apr 7 | 78.1°F | 76.3°F | 80.4°F |
| Apr 8 | 78.3°F | 76.3°F | 80.4°F |
| Apr 9 | 78.4°F | 76.4°F | 81.0°F |
| Apr 10 | 78.4°F | 76.1°F | 81.1°F |
| Apr 11 | 78.2°F | 76.1°F | 80.6°F |
| Apr 12 | 78.2°F | 76.2°F | 79.8°F |
| Apr 13 | 78.3°F | 76.6°F | 80.0°F |
| Apr 14 | 78.5°F | 76.7°F | 79.3°F |
| Apr 15 | 78.5°F | 76.4°F | 77.9°F |
| Apr 16 | 78.9°F | 76.6°F | 80.6°F |
| Apr 17 | 79.1°F | 77.0°F | 81.1°F |
| Apr 18 | 79.2°F | 77.3°F | 81.7°F |
| Apr 19 | 79.2°F | 77.5°F | 80.9°F |
| Apr 20 | 79.3°F | 78.2°F | 80.6°F |
| Apr 21 | 79.2°F | 79.5°F | 79.9°F |
| Apr 22 | 79.1°F | 80.0°F | 79.9°F |
| Apr 23 | 79.2°F | 79.7°F | 81.3°F |
| Apr 24 | 79.6°F | 79.5°F | 82.6°F |
| Apr 25 | 79.7°F | 79.3°F | 82.5°F |
| Apr 26 | 80.1°F | 79.4°F | 82.0°F |
| Apr 27 | 80.2°F | 79.0°F | 82.3°F |
| Apr 28 | 80.3°F | 78.4°F | 82.9°F |
| Apr 29 | 80.4°F | 78.3°F | 83.2°F |
| Apr 30 | 80.6°F | 78.5°F | 83.4°F |
In Key West, the water temperature is comfortable for swimming all year round.
The warmest water in Key West was recorded on August 12, 2023, reaching a 91.4°F. While the coldest temperature occurred on February 4, 2021, dipping to 67.5°F. The average readings by season are 74.4°F in Winter, 79.0°F in Spring, 86.3°F in Summer, and 82.9°F in Autumn.
The average temperature in April is slightly warmer than March's average of 76.2°F. And in May, the temperature is expected to rise further, potentially reaching an average of 82.0°F.