Best year time to visit Alcatraz

General weather information about Alcatraz

Average annual temperature is 13.0 °C

Absolute maximum temperature: 32.9 °C

Absolute minimum temperature: 4.2 °C

Number of sunny days: 264 days

Number of rainy days: 101 days

* Weather data for Alcatraz United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.9	16.4	15.5	18.2	19.6	19.9	22.6	26.8	23.2	32.9	20.8	16.3
Average daytime temperature (°C)	12.7	11.9	11.7	14.2	14.8	15.9	18.9	20.5	18.8	21.0	16.6	14.4
Average temperature (°C)	10.3	9.0	9.5	11.2	12.7	13.7	14.9	16.5	16.1	16.3	13.4	11.6
Average night temperature (°C)	8.8	7.3	8.0	9.3	11.4	12.4	12.6	14.3	14.5	13.7	11.0	9.7
Absolute minimum temperature (°C)	5.8	4.5	4.2	5.9	9.4	10.8	11.1	12.7	13.4	9.9	7.0	6.5

The best time to visit Alcatraz during the most sunny months:

The largest precipitation sum in Alcatraz is at

January — 291(mm)

March — 277(mm)

December — 181(mm)

When is the best time to visit Alcatraz?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Alcatraz.

What is the weather like in Alcatraz?

See average temperature, rainfall and daylight hours for Alcatraz by month in the table above.

How many sunny days does Alcatraz have?

The monthly weather statistics above show sunshine and rainfall patterns for Alcatraz throughout the year.