Los Angeles, California weather in January

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

Average high

66°F

Average low

45°F

Rainy days

~6 per month

Total precipitation

3.4 in

Warmest recorded

89°F

Coldest recorded

36°F

Expect January days in Los Angeles, California to top out around 66°F and cool to about 45°F overnight, with roughly 6 days of measurable rain across the month. In recent years January has ranged from 36°F to 89°F.