San Francisco Weather in March

What's the weather like in San Francisco (California) in March 2023?

The climate in San Francisco during March can be summarized as mild and a little damp.

March is in the spring in San Francisco and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 9°C (47°F) is normal.

San Francisco weather averages (imperial / metric)
Daytime temperature 16°C 60.7°F
Nightly temperature 8.5°C 47.2°F
Average temperature 12.2°C 54°F
Daily sunshine 9.3 hrs
Avg rainfall 89 mm 3.5 ins
Rainy days 11 days
Sea temperature 12.2°C 53.9°F
Humidity 73%
Windspeed 16.9kph 11 mph

On average March is the 5th wettest month of the year in San Francisco with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

March temperatures in San Francisco

San Francisco average temperature in March

March rainfall

San Francisco average rain in March

March hourly sunshine

San Francisco average rain in March

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 San Francisco in March 2023.