Weather in San Francisco: April
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Average day temperature: | 58.1°F |
| Average night temperature: | 50.8°F | |
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Sea water temperature: | 55.9°F |
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Number of sunny days: | 17 days |
| Day length: | 12.6 - 13.7 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.8 in. | |
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forecast
| San Francisco |
temperature
| San Francisco |
Air temperature in April, °F
The highest day temperature during April of 2025 was 66°F. At the same time the lowest night temperature was 48°F. Daily and nightly averages during April were 56.1°F and 50.7°F.
Sea water temperature in San Francisco in April, °F
The average sea water temperature in April of 2025 was 56.4°F. The highest and lowest sea temperatures during the month were 58.6°F and 54.5°F.
Mostly all days in April are sunny but cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in San Francisco in April is 1.0 in. Other months of the year show relatively similar values.
The average wind speed value in April is 9.1 mph It makes April one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 9.0.
Best time for vacation in San Francisco
San Francisco on a weather map
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