Search results
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.
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. The cool season lasts for 2.0 months, from December 3 to February 4, with an average daily high temperature below 59°F.
Station Data. Monthly averages San Francisco Longitude: -122.42, Latitude: 37.78 Average weather San Francisco, CA - 94102. Monthly: 1981-2010 normals
Summers in San Francisco are characterized by warm, dry conditions with longer daylight hours. From June to August, high temperatures rise to a peak of 72.5°F (22.5°C), while the lows maintain a comfortable average between 53.8°F (12.1°C) and 56.3°F (13.5°C). Rainfall is minimal during this season, hovering around a meager 0.08" (2mm) per ...
- How many days does it rain in San Francisco?In San Francisco, California, during the entire year, the rain falls for 58.6 days and collects up to 6.46" of precipitation .
- When is the lowest UV index in San Francisco?January , February , November and December , with an average maximum UV index of 3 , are months with the lowest UV index .
- What is the rainiest month in San Francisco?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...
- What is the most humid month in San Francisco?The most humid month in San Francisco, California, is March , with an average relative humidity of 76% .
- When is Daylight Saving Time (DST) in San Francisco?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...
- What months are the ocean coldest in San Francisco?The months with the coldest seawater in San Francisco are April through June , with an average ocean temperature of 53.1°F .
- What are the months with the highest UV index in San Francisco?The months with the highest UV index are April , June through September , with an average maximum UV index of 5 .
- When are the longest days in San Francisco?The month with the longest days is June , with an average of 14h and 42min of daylight .
- What is the driest month in San Francisco?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 .
Days of Hot Weather in San Francisco. 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.
54.1. An average of 12.40°C | 54.32°F water temperatures is reached in San Francisco (San Francisco Bay) over the year. At 14.50°C | 58.10°F, the average monthly water temperature reaches its highest value in the year in September. Whereas in April the lowest value is measured with about 11.10°C | 51.98°F.
51 °F. annual average low. 11 °C. San Francisco's coldest days of the year usually occur from late December to mid January when the daily maximum temperature averages 57 degrees Fahrenheit (14 degrees Celsius) and the minimum averages 46 °F (8 °C). The year's hottest days are normally in late September.
