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7 Days
14 Days
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Monthly
Precipitation
Temperature
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°Celsius
°Fahrenheit
Monthly Historical Averages
San Francisco, CA
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September
Average Temperature
High
21°
Feels 21
Low
13°
Feels 13
Average Precipitation
2 Days
Rain amount
7.6mm
Snow amount
0cm
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
22°
24
18°
25
18°
26
17°
27
16°
28
17°
29
19°
30
17°
Forecast
Wednesday, September 23, 2026
Day
22°
Feels 22
Wind
20 km/h W
Gust
30 km/h
Humidity
52%
P.O.P
20%
Night
14°
Feels 14
Wind
18 km/h S
Gust
26 km/h
Humidity
87%
P.O.P
0%
Historical Averages
Sep 23
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.