About San Rafael, CA's Climate & Weather History

San Rafael, in California, United States, is home to roughly 59,200 people in the Pacific Time Zone at 38°N latitude.

In 2025, San Rafael recorded an average annual temperature of 57°F — about 0.6°F below the 30-year normal of 58°F. The hottest day reached 96°F in August; the coldest was 36°F in January. Total precipitation was 24 inches (near normal). The wettest month was February.