Monthly
     

Monthly Historical AveragesAlcatraz, CA

Average Temperature
High
14°
Feels 13
Low
8°
Feels 7
Average Precipitation
6 Days
Rain amount
59mm
Snow amount
0cm
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Daily Historical Averages

S
M
T
W
T
F
S
ForecastSunday, January 11, 2026
Day
A mix of sun and clouds
13°Feels 13
Wind
13 km/h NE
Gust
19 km/h
Humidity
58%
P.O.P
20%
Night
Partly cloudy
9°Feels 7
Wind
9 km/h NE
Gust
14 km/h
Humidity
83%
P.O.P
20%
Historical AveragesJan 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
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