Current sea water temperature:
+66.6°F
| Minimum sea water temperature in February: | 78.4°F |
| Maximum sea water temperature in February: | 66.6°F |
| Average sea water temperature in February: | 73.6°F |
| more information | |
14 days
forecast
forecast
| Key West |
monthly
weather
weather
| Key West |
Sea water temperature for the last 10 days:
| February 3 | 66.6°F | January 29 | 69.8°F |
| February 2 | 68.7°F | January 28 | 72.9°F |
| February 1 | 69.1°F | January 27 | 74.5°F |
| January 31 | 70.2°F | January 26 | 73.2°F |
| January 30 | 68.7°F | January 25 | 71.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Key West?
Based on the data about daily sea water temperature for the last three years the warmest sea in Key West was noticed in August, July and September.
Monthly Sea Temperatures in Key West, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.8°F. The highest and lowest sea temperatures during the month were 90.7°F and 86.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 86.7°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 86.9°F. The highest and lowest sea temperatures during the month were 89.2°F and 85.3°F.
current
weather
weather
| Key West |
weather in
February
February
| Key West |
Best time for vacation in Key West
Key West on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key West
Local time: 03:27
February 03, tuesday
0600
55°F
SW
15 mph
15 mph
0900
55°F
SW
14 mph
14 mph
1200
61°F
SW
15 mph
15 mph
1500
61°F
SW
11 mph
11 mph
1800
63°F
SW
11 mph
11 mph
2100
64°F
SW
13 mph
13 mph
February 04, wednesday
0000
64°F
SW
14 mph
14 mph
0300
64°F
SW
12 mph
12 mph
