Weather in San Bernardino in December
San Bernardino, United States averages a high of 17°C (62.6°F) and low of 5.1°C (41.2°F) in December, with 5 rain days and 8.4 hours of daily sunshine. Travel score: 78.5/100 (Good). The best time to visit San Bernardino is June.
High
17°C63°F
Low
5°C41°F
🌧️
5
rain days
☀️
8.4
hrs/day sunshine
💧
58%
humidity
79— Good
December 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 December?
San Bernardino receives an average of 53.2mm of rainfall across 5 rainy days in December. The annual total is 362.8mm.
What should I pack for San Bernardino in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 17°C
Recommended
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to United States in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
Compare San Bernardino
Popular comparisons:
How can I plan my trip to San Bernardino?
What other cities are near San Bernardino?
What are other popular cities in United States?
What is the weather like in other months in San Bernardino?
Data based on 1994–2024 averages · Last updated: 2024-12-31