San Francisco Weather in February
February continues the relatively rainy weather of winter at San Francisco, California. Yet the climate this month is more often sunny than wet.
This page gives detailed information on the typical February temperature, precipitation, sun, humidity, wind and storms for San Francisco. The temperature, rainfall, sunshine and wind speed numbers here are historical averages based on climate data gathered in downtown San Francisco near the corner of Buchanan and Hermann Streets. The other measurements are averages at San Francisco International Airport, located south of the city center.
|60 °F||February average high||16 °C|
|48 °F||February average low||9 °C|
|15 days||60 °F max. or more (16 °C)|
|20 days||50 °F min. or less (10 °C)|
The temperature usually rises every day during February to over 50 degrees Fahrenheit (10 degrees Celsius) at San Francisco. The city averages 3 days this month when the thermometer reaches into the 70s °F (over 21 °C). A temperature of 80 °F (27 °C) or above occurs only about once a decade during February.
The thermometer dips to 40 °F (4 °C) or below on an average of 1 night this month. But February does not normally get cold enough for frost.
|4.4 in||total precipitation||111 mm|
|11 days||of rain|
Half the time, San Francisco receives 1.6 to 6.2 inches (39 to 158 mm) of rainfall in February. One in four years has drier weather, while another one in four is wetter.
|8 days||clear skies|
The sun's rays reach the ground in San Francisco during 62 percent of daylight hours on average in February, for a total of 188 hours in the month. Typically on 8 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in February at San Francisco lasts for 10 hours and 49 minutes a day on average. The shortest day of the month is the 1st with 10 hours and 20 minutes of daylight. By the end of the month, the days have lengthened to 11:21 from sunrise to sunset. These durations can vary by a minute or two from year to year.
|76 %||February average humidity|
The relative humidity in San Francisco during February usually peaks at 84 percent in the morning then drops to 64 percent by late afternoon.
|Local Time||1 am||4 am||7 am||10 am||1 pm||4 pm||7 pm||10 pm|
|7.5 mph||February wind speed average||12.1 kph|
February is less windy than most other months in San Francisco.
|3 days||rainfall of 0.5 inches (13 mm) or more|
|1 day||with thunderstorms in February|
San Francisco averages one February thunderstorm every two years.
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.