San Francisco Weather in May


Check the Weather in San Francisco, California in May before you book your next holiday. This gives the best indication of the weather in May and includes figures for temperature, sunshine and rainfall.

The good news is that if you fancy going on holiday in May, you definitely won't have to fly as far as in previous months to find warm rays of sunshine, or even beach friendly weather. It's also early in the European holiday season, so hotels are freshly cleaned and it's generally uncrowded, even though the weather in May means temperatures aren't yet at their peak.

Max Daytime Temperature (°C) 18°C (64°F) Max Daytime Temperature in May in San Francisco 18°C (64°F) in May
Min Night-time Temperature (°C) 10°C (50°F) Min Night-time Temperature in May in San Francisco 10°C (50°F) in May
Hours of Sunshine (Daily) 11 Hours of Bright Sunshine per day (75% of Daylight Hours) in May in San Francisco 11 Hours per day in May
Hours of Daylight (Daily) 14 Hours of Daylight in May in San Francisco 14 Hours per day in May
Heat and Humidity Discomfort No heat & humidity in May in San Francisco None in May
Days with some Rainfall 3 Days with some Rainfall in May in San Francisco 3 Days in May
Monthly Rainfall (mm) 7 mm (0.3 inches) Monthly Rainfall in May in San Francisco 7 mm (0.3 inches) in May
UV Index (Maximum) UV (Maximum) Index 8 (Very High) in May in San Francisco 8 (Very High) in May
Sea Temperature (°C) 12°C (54°F) Sea Temperature in May in San Francisco 12°C (54°F) in May
All Months Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C)  |  Imperial (°F) 

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Map of California

Select a destination from the California Map to view the may weather guide. Alternatively, select from the list of destinations below the map. Can't find the California weather destination you are after? Try the Destination Search.

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San Francisco weather by month

Check the weather for a particular month in San Francisco by selecting a month from the list below. Alternatively check which month usually has the Best Weather in San Francisco. If you are not sure where to go, why not try our Holiday Planner.


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