Average sea water temperature in September:
+62.1°F
| Minimum sea water temperature in September: | 67.6°F |
| Maximum sea water temperature in September: | 55.8°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 64.8°F. The highest and lowest sea temperatures during the month were 66.9°F and 62.2°F.
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| San Francisco |
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| San Francisco |
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Monthly sea water temperature in San Francisco, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 88.7°F | 86.9°F |
| Naples | 88.1°F | 86.1°F |
| Sarasota | 87.9°F | 84.8°F |
| Siesta Key | 87.9°F | 84.9°F |
| Corpus Christi | 87.6°F | 85.8°F |
| Houston | 87.5°F | 84.9°F |
| Tampa | 87.2°F | 84.3°F |
| Clearwater Beach | 87.1°F | 84.0°F |
| New Orleans | 86.7°F | 84.3°F |
| West Palm Beach | 86.7°F | 86.2°F |
| Fort Lauderdale | 86.6°F | 86.4°F |
| Miami Beach | 86.5°F | 86.1°F |
| Bay Saint Louis | 86.4°F | 84.0°F |
| Panama City Beach | 86.4°F | 83.4°F |
| Fort Walton Beach | 86.3°F | 83.3°F |
| Destin | 86.3°F | 83.1°F |
| Pensacola | 86.2°F | 83.9°F |
| Orange Beach | 86.2°F | 84.0°F |
| Pensacola Beach | 86.2°F | 83.9°F |
| Santa Rosa Beach | 86.2°F | 83.4°F |
Best time for vacation in San Francisco
San Francisco on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Francisco
Local time: 14:02
September 14, monday
1500
64°F
E
14 mph
14 mph
1800
61°F
E
12 mph
12 mph
2100
59°F
E
8 mph
8 mph
September 15, tuesday
0000
59°F
NE
9 mph
9 mph
0300
59°F
NE
8 mph
8 mph
0600
57°F
NE
6 mph
6 mph
0900
59°F
N
6 mph
6 mph
1200
64°F
NE
9 mph
9 mph
