Key West in July
Find out everything about the water temperature in Key West in July. Average, minimum and maximum recorded temperatures as well as daily temperature in July for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in July
Minimum:
83.6 °F
Average:
86.9 °F
Maximum:
91.1 °F
Sea water temperature in Key West in July
In the city of Key West, the month of July is a great time for swimming. The minimum recorded temperature during this month was 83.6°F on July 1, 2021, with an average temperature being 86.9°F and a maximum temperature reaching 91.1°F on July 16, 2023.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Jul 1 | 86.1°F | 85.9°F | 87.9°F |
| Jul 2 | 86.3°F | 85.7°F | 88.9°F |
| Jul 3 | 86.5°F | 87.4°F | 88.1°F |
| Jul 4 | 86.9°F | 87.2°F | 88.5°F |
| Jul 5 | 86.9°F | 87.0°F | 88.4°F |
| Jul 6 | 86.9°F | 86.3°F | 88.6°F |
| Jul 7 | 87.0°F | 87.8°F | 88.8°F |
| Jul 8 | 86.8°F | 87.4°F | 88.3°F |
| Jul 9 | 86.8°F | 87.1°F | 88.8°F |
| Jul 10 | 87.0°F | 87.9°F | 88.8°F |
| Jul 11 | 86.9°F | 87.3°F | 89.5°F |
| Jul 12 | 87.0°F | 86.7°F | 90.0°F |
| Jul 13 | 86.8°F | 86.9°F | 89.9°F |
| Jul 14 | 86.8°F | 87.4°F | 89.7°F |
| Jul 15 | 86.7°F | 87.1°F | 89.8°F |
| Jul 16 | 87.0°F | 87.3°F | 91.1°F |
| Jul 17 | 87.0°F | 88.5°F | 89.9°F |
| Jul 18 | 87.1°F | 88.1°F | 90.2°F |
| Jul 19 | 87.1°F | 88.3°F | 90.4°F |
| Jul 20 | 87.0°F | 89.1°F | 89.6°F |
| Jul 21 | 87.1°F | 88.1°F | 89.8°F |
| Jul 22 | 87.1°F | 87.8°F | 90.7°F |
| Jul 23 | 87.2°F | 88.1°F | 90.9°F |
| Jul 24 | 87.1°F | 88.2°F | 89.7°F |
| Jul 25 | 87.2°F | 88.1°F | 89.8°F |
| Jul 26 | 87.2°F | 87.9°F | 90.3°F |
| Jul 27 | 87.3°F | 88.1°F | 89.6°F |
| Jul 28 | 87.1°F | 87.8°F | 89.4°F |
| Jul 29 | 87.0°F | 87.3°F | 88.4°F |
| Jul 30 | 87.1°F | 88.0°F | 88.5°F |
| Jul 31 | 87.3°F | 88.5°F | 88.9°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 74.3°F in Winter, 79.0°F in Spring, 86.3°F in Summer, and 82.9°F in Autumn.
The average temperature in July is slightly warmer than June's average of 84.8°F. And in August, the temperature is expected to rise further, potentially reaching an average of 87.2°F.