Current sea water temperature:
+58.8°F
| Minimum sea water temperature in April: | 60.4°F |
| Maximum sea water temperature in April: | 51.1°F |
| Average sea water temperature in April: | 55.9°F |
| more information | |
14 days
forecast
forecast
| San Francisco |
monthly
weather
weather
| San Francisco |
Sea water temperature for the last 10 days:
| April 6 | 58.8°F | April 1 | 57.4°F |
| April 5 | 57.7°F | March 31 | 58.1°F |
| April 4 | 57.4°F | March 30 | 58.3°F |
| April 3 | 59.0°F | March 29 | 59.5°F |
| April 2 | 56.7°F | March 28 | 58.6°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:
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.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 63.8°F. The highest and lowest sea temperatures during the month were 65.1°F and 62.4°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
April
April
| 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: 06:28
April 06, monday
0900
52°F
E
5 mph
5 mph
1200
57°F
E
9 mph
9 mph
1500
54°F
E
11 mph
11 mph
1800
52°F
E
12 mph
12 mph
2100
50°F
E
9 mph
9 mph
April 07, tuesday
0000
50°F
E
7 mph
7 mph
0300
48°F
E
7 mph
7 mph
0600
48°F
E
7 mph
7 mph
