Weather in Sylmar in December
Sylmar, United States averages a high of 17.2°C (63°F) and low of 6.1°C (43°F) in December, with 5 rain days and 8.4 hours of daily sunshine. Travel score: 79/100 (Good). The best time to visit Sylmar is August.
High
17°C63°F
Low
6°C43°F
🌧️
5
rain days
☀️
8.4
hrs/day sunshine
💧
59%
humidity
79— Good
December in Sylmar is mild and mostly dry — good for most activities.
What are the average temperatures in Sylmar?
How much does it rain in Sylmar in December?
Sylmar receives an average of 63.2mm of rainfall across 5 rainy days in December. The annual total is 383.9mm.
What should I pack for Sylmar 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
🎉Visiting United States in December?
Don't miss any public holidays — check before you book!
Compare Sylmar
Popular comparisons:
How can I plan my trip to Sylmar?
What other cities are near Sylmar?
What are other popular cities in United States?
What is the weather like in other months in Sylmar?
Data based on 1994–2024 averages · Last updated: 2024-12-31