San Francisco, United States
Weather by months in San Francisco
January
February
March
April
May
June
July
August
September
October
November
December
20ºC
Avg. daily temperature
22ºC
High
11ºC
Low
10 mm
Total precipitation
10%
Avg. humidity
5m/s
Avg. wind
15 
Sunny days
10 
Cloudy days
5 
Rainy days
Air temperature
September
The temperature is between 12 and 18 degrees Celsius.
Low12º18ºHigh
1.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
4.9The temperature is between 13 and 20 degrees Celsius.
Low13º20ºHigh
7.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
10.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
13.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
16.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
18.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
20.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
22.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
24.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
26.9The temperature is between 13 and 19 degrees Celsius.
Low13º19ºHigh
28.9In San Francisco, September experiences a maximum daytime temperature of around 22ºC and a minimum nighttime temperature of 11ºC. The average daily high is about 20ºC, while the average nightly low hovers around 13ºC. Enjoy the warm weather by exploring Marin Headlands or visiting the historic Cable Car Museum.
