Weather in Vallejo in December
Vallejo, United States averages a high of 13.6°C (56.5°F) and low of 5.8°C (42.4°F) in December, with 9 rain days and 6.6 hours of daily sunshine. Travel score: 60.8/100 (Good). The best time to visit Vallejo is September.
High
14°C56°F
Low
6°C42°F
🌧️
9
rain days
☀️
6.6
hrs/day sunshine
💧
80%
humidity
61— Good
December in Vallejo is cool and occasionally wet — good for most activities.
What are the average temperatures in Vallejo?
How much does it rain in Vallejo in December?
Vallejo receives an average of 102.1mm of rainfall across 9 rainy days in December. The annual total is 527.7mm.
What should I pack for Vallejo in December?
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
Traveling to United States in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31