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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Foster City, CA
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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
19°
20
19°
21
16°
22
16°
23
17°
24
17°
25
18°
26
16°
27
16°
28
17°
29
17°
30
18°
Forecast
Sunday, April 19, 2026
Day
19°
Feels 19
Wind
18 km/h W
Gust
27 km/h
Humidity
37%
P.O.P
30%
Night
12°
Feels 10
Wind
14 km/h SW
Gust
20 km/h
Humidity
83%
P.O.P
40%
Rain
~1 mm
Historical Averages
Apr 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
April
Average Temperature
High
19°
Feels 18
Low
9°
Feels 8
Average Precipitation
5 Days
Rain amount
26.2mm
Snow amount
0cm