Weather in Fountain Valley in December
Fountain Valley, United States averages a high of 17.5°C (63.5°F) and low of 8.4°C (47.1°F) in December, with 5 rain days and 8.4 hours of daily sunshine. Travel score: 76.9/100 (Good). The best time to visit Fountain Valley is July.
High
18°C64°F
Low
8°C47°F
🌧️
5
rain days
☀️
8.4
hrs/day sunshine
💧
73%
humidity
77— Good
December in Fountain Valley is mild and mostly dry — good for most activities.
What are the average temperatures in Fountain Valley?
How much does it rain in Fountain Valley in December?
Fountain Valley receives an average of 49.3mm of rainfall across 5 rainy days in December. The annual total is 295.1mm.
What should I pack for Fountain Valley in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 18°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.
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Data based on 1994–2024 averages · Last updated: 2024-12-31