The climate in San Francisco during August can be summarized as mild and very dry.
August is in the summer in San Francisco and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 13°C (55°F) is normal.
|Daytime temperature||20.3°C 68.5°F|
|Nightly temperature||12.5°C 54.5°F|
|Average temperature||16.4°C 61.5°F|
|Daily sunshine||10.2 hrs|
|Avg rainfall||2 mm 0.1 ins|
|Rainy days||1 days|
|Sea temperature||14°C 57.2°F|
|Windspeed||18.7kph 12 mph|
On average August is the 2nd driest month of the year in San Francisco with around 2mm 0.1 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 10.2 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in August 2019.
|Hottest month:||September||21.4°C 70.5°F|
|Driest month:||July||1mm 0ins|
|Coldest month:||January||13.2°C 55.8°F|
|Wettest month:||January||125mm 4.9ins|