Best time to visit Petaluma, CA
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Petaluma runs from March through November — 9 months of pleasant temperatures and modest rainfall.
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 9h 37m
Frequent rain. Bring waterproof gear; outdoor plans need flexibility.
Daylight ≈ 10h 34m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 11h 45m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 0m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 4m
Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.
Daylight ≈ 14h 37m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 25m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 13h 29m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 14m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 10h 59m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 9h 53m
Frequent rain. Bring waterproof gear; outdoor plans need flexibility.
Daylight ≈ 9h 21m
Looking for similar climates? See Petaluma's climate twins. Or jump straight to the full climate profile.