Weather in San Francisco in September

General weather information about San Francisco

Average annual temperature is 24.6 °C

Absolute maximum temperature: 37.9 °C

Absolute minimum temperature: 7.4 °C

Number of sunny days: 98 days

Number of rainy days: 267 days

* Weather data for San Francisco Bolivia is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	32.3	31.4	31.1	30.2	29.9	29.5	31.6	34.2	36.2	37.1	37.9	33.6
Average daytime temperature (°C)	28.8	28.6	28.4	28.2	27.0	26.1	28.8	30.9	32.5	33.7	33.2	31.3
Average temperature (°C)	24.3	24.1	24.1	23.7	22.5	20.9	22.7	24.7	26.4	27.7	27.8	26.6
Average night temperature (°C)	21.1	21.2	21.4	20.6	19.2	17.0	17.8	19.9	22.0	23.3	23.8	23.1
Absolute minimum temperature (°C)	18.3	17.8	19.3	16.6	14.3	7.4	13.2	13.8	14.9	18.1	18.7	20.8

The largest precipitation sum in San Francisco is at

January — 274(mm)

February — 255(mm)

March — 269(mm)

When is the best time to visit San Francisco?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit San Francisco.

What is the weather like in San Francisco?

See average temperature, rainfall and daylight hours for San Francisco by month in the table above.

How many sunny days does San Francisco have?

The monthly weather statistics above show sunshine and rainfall patterns for San Francisco throughout the year.