Current sea water temperature:
+65.5°F
| Minimum sea water temperature in October: | 65.7°F |
| Maximum sea water temperature in October: | 54.7°F |
| Average sea water temperature in October: | 60.7°F |
| more information | |
14 days
forecast
forecast
| San Francisco |
monthly
weather
weather
| San Francisco |
Sea water temperature for the last 10 days:
| October 4 | 65.5°F | September 29 | 64.0°F |
| October 3 | 64.9°F | September 28 | 64.2°F |
| October 2 | 63.3°F | September 27 | 65.5°F |
| October 1 | 63.7°F | September 26 | 64.2°F |
| September 30 | 63.5°F | September 25 | 64.0°F |
Monthly sea water temperature, °F
When is the warmest sea in San Francisco?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Francisco was noticed in September, August and October.
Monthly Sea Temperatures in San Francisco, °F
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 64.7°F. The highest and lowest sea temperatures during the month were 67.6°F and 62.2°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 64.4°F. The highest and lowest sea temperatures during the month were 66.7°F and 62.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 63.8°F. The highest and lowest sea temperatures during the month were 65.3°F and 62.4°F.
current
weather
weather
| San Francisco |
weather in
October
October
| San Francisco |
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: 18:54
October 04, sunday
2100
64°F
NE
7 mph
7 mph
October 05, monday
0000
64°F
NE
6 mph
6 mph
0300
63°F
NE
5 mph
5 mph
0600
63°F
E
2 mph
2 mph
0900
66°F
SE
2 mph
2 mph
1200
72°F
E
4 mph
4 mph
1500
68°F
E
9 mph
9 mph
1800
66°F
NE
9 mph
9 mph
