Weather in San Clemente in December
San Clemente, United States averages a high of 17.2°C (63°F) and low of 9.3°C (48.7°F) in December, with 5 rain days and 8.5 hours of daily sunshine. Travel score: 77.4/100 (Good). The best time to visit San Clemente is July.
High
17°C63°F
Low
9°C49°F
🌧️
5
rain days
☀️
8.5
hrs/day sunshine
💧
73%
humidity
77— Good
December in San Clemente is mild and mostly dry — good for most activities.
What are the average temperatures in San Clemente?
How much does it rain in San Clemente in December?
San Clemente receives an average of 55.3mm of rainfall across 5 rainy days in December. The annual total is 351.8mm.
What should I pack for San Clemente 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.
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Data based on 1994–2024 averages · Last updated: 2024-12-31