Los Angeles, California weather in December

Averages from 2021–2025 (155 days of record).

Average high: 66°F
Average low: 48°F
Rainy days: ~6 per month
Total precipitation: 5.2 in
Warmest recorded: 82°F
Coldest recorded: 35°F

Expect December days in Los Angeles, California to top out around 66°F and cool to about 48°F overnight, with roughly 6 days of measurable rain across the month. In recent years December has ranged from 35°F to 82°F.

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Current Los Angeles, California forecast → · Historical data by Open-Meteo (ERA5).