Average sea water temperature in July:
+87.2°F
| Minimum sea water temperature in July: | 89.1°F |
| Maximum sea water temperature in July: | 83.7°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 88.3°F. The highest and lowest sea temperatures during the month were 88.9°F and 87.8°F.
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| Siesta Key |
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| Siesta Key |
Monthly sea water temperature in Siesta Key, °F
Which USA resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Key West | 88.9°F | 86.7°F |
| Clearwater Beach | 88.9°F | 87.1°F |
| St. Petersburg | 88.6°F | 87.0°F |
| Sarasota | 88.3°F | 86.9°F |
| Siesta Key | 88.3°F | 86.9°F |
| Tampa | 88.3°F | 86.8°F |
| Naples | 88.1°F | 86.6°F |
| Miami | 87.5°F | 86.3°F |
| New Orleans | 87.1°F | 87.4°F |
| Miami Beach | 87.1°F | 86.0°F |
| Pensacola | 86.8°F | 86.9°F |
| Fort Lauderdale | 86.8°F | 85.0°F |
| Houston | 86.6°F | 86.3°F |
| Destin | 86.6°F | 86.3°F |
| Panama City Beach | 86.4°F | 86.3°F |
| West Palm Beach | 86.1°F | 84.6°F |
| Corpus Christi | 85.5°F | 85.3°F |
| Charleston (SC) | 85.4°F | 84.7°F |
| Isle of Palms | 85.2°F | 84.3°F |
| Jacksonville | 85.0°F | 80.4°F |
Best time for vacation in Siesta Key
Siesta Key on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Siesta Key
Local time: 01:18
July 18, saturday
0300
73°F
N
3 mph
3 mph
0600
73°F
N
7 mph
7 mph
0900
73°F
N
12 mph
12 mph
1200
79°F
NW
11 mph
11 mph
1500
84°F
N
14 mph
14 mph
1800
86°F
N
15 mph
15 mph
2100
82°F
N
11 mph
11 mph
July 19, sunday
0000
82°F
N
11 mph
11 mph
