Monthly Historical AveragesBethel Island, CA
Average Temperature
High
22°
Feels 22
Low
9°
Feels 8
Average Precipitation
5 Days
35.4mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 12, 2026
Day
16°Feels 14
Wind
20 km/h S
Gust
31 km/h
Humidity
56%
P.O.P
100%
Rain
~5 mm
Night
9°Feels 7
Wind
19 km/h S
Gust
28 km/h
Humidity
93%
P.O.P
40%
Rain
<1 mm
Historical AveragesApr 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity