Monthly Historical AveragesHalf Moon Bay, CA
Average Temperature
High
15°
Feels 14
Low
8°
Feels 6
Average Precipitation
5 Days
26.8mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, April 20, 2026
Day
17°Feels 16
Wind
32 km/h S
Gust
48 km/h
Humidity
75%
P.O.P
100%
Rain
~10 mm
Night
11°Feels 10
Wind
22 km/h S
Gust
33 km/h
Humidity
97%
P.O.P
90%
Rain
10-15 mm
Historical AveragesApr 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity