Average sea water temperature in July:
+86.7°F
| Minimum sea water temperature in July: | 91.0°F |
| Maximum sea water temperature in July: | 82.8°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 88.5°F. The highest and lowest sea temperatures during the month were 90.0°F and 87.4°F.
sea water
temperature
temperature
| Key West |
monthly
weather
weather
| Key West |
current
weather
weather
| Key West |
14 days
forecast
forecast
| Key West |
Monthly sea water temperature in Key West, °F
Which USA resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Key West | 88.5°F | 86.7°F |
| Clearwater Beach | 87.9°F | 87.1°F |
| St. Petersburg | 87.9°F | 87.0°F |
| Naples | 87.7°F | 86.6°F |
| Tampa | 87.6°F | 86.8°F |
| Sarasota | 87.6°F | 86.9°F |
| Siesta Key | 87.6°F | 86.9°F |
| New Orleans | 87.5°F | 87.4°F |
| Miami | 87.4°F | 86.3°F |
| Miami Beach | 87.0°F | 86.0°F |
| Houston | 86.7°F | 86.3°F |
| Fort Lauderdale | 86.6°F | 85.0°F |
| Galveston | 86.4°F | 86.4°F |
| Hilton Head Island | 86.3°F | 85.7°F |
| St. George Island | 86.3°F | 86.4°F |
| Tybee Island | 86.3°F | 85.4°F |
| Pensacola | 86.1°F | 86.9°F |
| Jekyll Island | 86.1°F | 84.6°F |
| Orange Beach | 86.1°F | 86.7°F |
| West Palm Beach | 86.1°F | 84.6°F |
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: 01:12
November 14, saturday
0300
75°F
S
17 mph
17 mph
0600
73°F
S
17 mph
17 mph
0900
72°F
SW
17 mph
17 mph
1200
70°F
SW
15 mph
15 mph
1500
70°F
S
16 mph
16 mph
1800
70°F
S
15 mph
15 mph
2100
72°F
SW
13 mph
13 mph
November 15, sunday
0000
72°F
SW
13 mph
13 mph
