Weather in Petaluma in January
Petaluma, United States averages a high of 14.2°C (57.6°F) and low of 5.6°C (42.1°F) in January, with 10 rain days and 6.8 hours of daily sunshine. Travel score: 59.5/100 (Mixed). The best time to visit Petaluma is August.
High
14°C58°F
Low
6°C42°F
🌧️
10
rain days
☀️
6.8
hrs/day sunshine
💧
82%
humidity
60— Mixed
January in Petaluma is cool and occasionally wet — mixed conditions — plan indoor alternatives.
What are the average temperatures in Petaluma?
How much does it rain in Petaluma in January?
Petaluma receives an average of 135.2mm of rainfall across 10 rainy days in January. The annual total is 685.2mm.
What should I pack for Petaluma in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 14°C
🧶
Sweaters and warm layers
Layer up for comfort
🎉Visiting United States in January?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31