San Francisco Climate by Month
San Francisco has relatively stable weather with warm temperatures.
It also has a notably wet climate with much precipitation.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
The climate in San Francisco remains fairly constant, offering comfortable temperatures throughout the year. Average daytime temperatures range from a very warm 31°C in August, the warmest time of the year, to a comfortable 26°C during cooler months like February. At night, temperatures typically average around 21°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
San Francisco is known for its substantial rainfall, with annual precipitation reaching 1002 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, September receives heavy rainfall, averaging 254 mm of precipitation, recorded across 18 rainy days. In contrast, the drier season, April brings less rainfall, with 2.4 mm over a single rainy day.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Average humidity
The relative humidity is low throughout the year in San Francisco.
Relative humidity over the year
The best time of year to visit San Francisco in Mexico
The best time to visit is during the drier months: January, February, March, April, May, November and December.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in July, August and September.
Yes, the months of March, April and May are very dry.
August has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 26°C.
September tops the wettest month list with 254 mm of rainfall.
April is the driest month with 2 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
