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Weather in May in San Francisco, California

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< May >
 
Normal Max/ High Temperature 19°C (67°F)
 
Average Temperature 15°C (58°F)
 
Min/ Low Temperature 10°C (50°F)
Average Sea or Water Temp 13°C(55°F)
 
Normal Precipitation 5mm (0.2in)
Number of Wet Days (probability of rain on a day) 3 (10%)
Average Sunlight per day 10:34
Average Daylight per day 14:10
Sunny (Cloudy) Daylight Hours 75% (25%)
Sun altitude at solar noon on the 21st day.
72.7°


  • The average sea tempeature is 13 °C (55.4 °F).
  • The average temperature in San Francisco, California in May is mild at 14.5 °C (58.1 °F).
  • Afternoons can be somewhat warm with average high temperatures reaching 19.2 °C (66.6 °F).
  • Overnight temperatures are generally a little cool with an average low of 9.8 °C (49.6 °F).
  • In May the average diurnal temperature variation/ range is 9.4 °C (16.9 °F).
  • The weather in May is arid with infrequent rain. An airy 4.8mm (0.2in) of H2O is discharged during on average 3 days.
  • The heavens above San Francisco, California are glorious having on balance an appreciable 10:34 of intense sunshine per day.
  • The shortest day is 13:43 long and the longest day is 14:33 long with an average length of 14:10.
  • There are approximately 3:26 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 75.5% of daylight hours and cloudy 24.5% of daylight hours.

Check the distance to and compare the San Francisco, California May averages with somewhere beginning with:

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Weather Trend Graph for May in San Francisco, California, Usa

Graph of weather in San Francisco, California in May

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