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Currently: 62 °F. Broken clouds. (Weather station: San Francisco International Airport, USA). See more current weather. Annual Weather Averages Near San Francisco. Averages are for San Francisco International Airport, which is 11 miles from San Francisco. Based on weather reports collected during 1992–2021. Showing:
Average Temperature in San Francisco The warm season lasts for 4.4 months, from June 12 to October 23, with an average daily high temperature above 69°F. The hottest month of the year in San Francisco is September, with an average high of 72°F and low of 58°F.
San Francisco averages just three days a year when the temperature reaches 90 degrees Fahrenheit, and even fewer over 100 (38 °C). No matter how warm the day, at night the temperature always cools to less than 70 degrees. The city's hottest days usually occur in September and October.
San Francisco Climate Graph - California Climate Chart. San Francisco weather averages and climate San Francisco, California. Monthly temperature, precipitation and hours of sunshine. A climate graph showing rainfall, temperatures and normals.
Feb 9, 2024 · San Francisco, California - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
- In San Francisco, California, during the entire year, the rain falls for 58.6 days and collects up to 6.46" of precipitation .
- January , February , November and December , with an average maximum UV index of 3 , are months with the lowest UV index .
- The month with the most rainfall in San Francisco is February , when the rain falls for 6 days and typically aggregates up to 1.38" of prec...
- The most humid month in San Francisco, California, is March , with an average relative humidity of 76% .
- On Sunday, March 12. 2023 , at 2:00 am, Daylight Saving Time starts in San Francisco, and the time zone changes from PST to PDT. Daylight Saving...
- The months with the coldest seawater in San Francisco are April through June , with an average ocean temperature of 53.1°F .
- The months with the highest UV index are April , June through September , with an average maximum UV index of 5 .
- The month with the longest days is June , with an average of 14h and 42min of daylight .
- The months with the least rainfall in San Francisco are July through September Rain falls for 2.3 days and accumulates 0.08" of rain .
Throughout the year, there is a fluctuation in average temperatures by 7.5 °C | 13.5 °F. The month of highest relative humidity is February (80.28 %). The month with the lowest relative humidity is June (68.77 %). The month which sees the most rainfall is January (0.17 days).
Every day in San Francisco normally warms to over 40 °F (4 °C), and most reach 50 °F (10 °C). The city averages just 3 days a year when the thermometer reaches into the 90s °F (over 32 °C). The temperature normally doesn't climb above 100 °F (38 °C), even on the hottest days.
