About Chula Vista, CA's Climate & Weather History

With a population of around 266,000, Chula Vista sits in California, United States. The city operates in the Pacific Time Zone.

In 2025, Chula Vista recorded an average annual temperature of 63°F — right at the 30-year normal of 62°F. The hottest day reached 84°F in September; the coldest was 41°F in January. Total precipitation was 18 inches (wetter than usual). The wettest month was March.