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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
San Francisco Intl Airport, CA
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April
Average Temperature
High
17°
Feels 16
Low
10°
Feels 8
Average Precipitation
5 Days
Rain amount
27.3mm
Snow amount
0cm
Content continues below
Daily Historical Averages
April 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
15°
22
18°
23
19°
24
17°
25
18°
26
18°
27
19°
28
19°
29
20°
30
20°
Forecast
Tuesday, April 21, 2026
Day
15°
Feels 14
Wind
28 km/h SW
Gust
42 km/h
Humidity
71%
P.O.P
90%
Rain
2-4 mm
Night
11°
Feels 10
Wind
19 km/h SW
Gust
28 km/h
Humidity
88%
P.O.P
60%
Rain
1-3 mm
Historical Averages
Apr 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.