Best year time to visit Petaluma

General weather information about Petaluma

Average annual temperature is 11.6 °C

Absolute maximum temperature: 34.6 °C

Absolute minimum temperature: -2.7 °C

Number of sunny days: 260 days

Number of rainy days: 105 days

* Weather data for Petaluma 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)	18.5	17.2	16.5	27.9	25.5	31.0	34.6	31.9	28.5	32.4	23.5	17.1
Average daytime temperature (°C)	12.2	11.8	11.4	16.5	18.2	21.3	27.8	27.8	24.3	23.2	16.9	13.6
Average temperature (°C)	7.0	5.6	6.3	9.5	11.7	13.9	17.5	18.2	15.6	14.7	10.5	8.6
Average night temperature (°C)	3.5	1.2	2.6	4.4	7.4	8.9	10.2	12.0	10.6	9.1	5.7	4.9
Absolute minimum temperature (°C)	-1.9	-2.7	-1.8	-0.2	3.8	6.5	7.5	8.8	7.7	2.0	-1.0	-0.4

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

The largest precipitation sum in Petaluma is at

January — 346(mm)

March — 309(mm)

December — 191(mm)

When is the best time to visit Petaluma?

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

What is the weather like in Petaluma?

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

How many sunny days does Petaluma have?

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