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San Francisco weather in May 2021
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- 1818°C max day temperature
- 33 days with some rainfall
- 1010°C min night temperature
- 1414 hours of daylight per day
- 0No heat & humidity
- 77 mm of monthly rainfall
- 88 (Very High) UV index
- 1111°C sea temperature
The May weather guide for San Francisco, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
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How hot is it in San Francisco in May?
Daytime temperatures usually reach 18°C in San Francisco in May, falling to 10°C at night.
How sunny is it in San Francisco in May?
There are normally 11 hours of bright sunshine each day in San Francisco in May - that's 75% of daylight hours.
Is the sea cold around San Francisco in May?
The average sea temperature around San Francisco in May is 11°C.
Does it ever rain in San Francisco in May?
There are usually 3 days with some rain in San Francisco in May and the average monthly rainfall is 7mm.
San Francisco sunrise & sunset times for May 2021
Browse the sunrise & sunset times for San Francisco in May 2021. Select a month to view San Francisco sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Saturday, 1st May 2021||06:13||20:01|
|Sunday, 16th May 2021||05:59||20:14|
|Monday, 31st May 2021||05:50||20:26|
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Metric (°C / mm) | Imperial (°F / inches)
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Where is hot in California in May for 2021/2022?
Below are average maximum temperatures at popular destinations in California in May. Select a destination to see more weather parameters.
- Death Valley
- Beverly Hills
- Los Angeles
- Palm Springs
- Santa Monica
- San Diego
- Santa Barbara
- Big Sur
- San Francisco
- Lake Tahoe
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