San Francisco weather by month › August
San Francisco in August: weather and what to expect
It’s fine, but not the best. September to October are more pleasant.
August weather in San Francisco
Daytime high72°F 22°C
Night low54°F 12°C
Rain0.1 in 2 mm
AirComfortable
SunStrong sun
In August, San Francisco averages highs of 72°F (22°C) and lows of 54°F (12°C), with 0.1 in (2 mm) of rain. The air feels comfortable and the sun is strong. 1991–2020 averages, not a forecast.
Pack: light layers.
Places with the same weather in August
Match out of 100 for August, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec