About San Diego, CA's Climate & Weather History

San Diego is a city of approximately 1.4 million people in California, United States. Located in the Pacific Time Zone at 32.7°N latitude.

In 2025, San Diego recorded an average annual temperature of 62°F — about 2.2°F below the 30-year normal of 65°F. The hottest day reached 87°F in October; the coldest was 40°F in January. Total precipitation was 17 inches (wetter than usual). The wettest month was March.