Weather in San Bernardino in January
San Bernardino, United States averages a high of 17.3°C (63.1°F) and low of 5.2°C (41.4°F) in January, with 6 rain days and 8.7 hours of daily sunshine. Travel score: 77.6/100 (Good). The best time to visit San Bernardino is June.
High
17°C63°F
Low
5°C41°F
🌧️
6
rain days
☀️
8.7
hrs/day sunshine
💧
61%
humidity
78— Good
January in San Bernardino is mild and mostly dry — good for most activities.
What are the average temperatures in San Bernardino?
How much does it rain in San Bernardino in January?
San Bernardino receives an average of 68.8mm of rainfall across 6 rainy days in January. The annual total is 362.8mm.
What should I pack for San Bernardino in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 17°C
Recommended
🧥
Evening jacket or cardigan
Temperature drops 12°C from day to night
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to United States in January?
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