About Lake Nacimiento, CA's Climate & Weather History

Lake Nacimiento is a city of approximately 2,400 people in California, United States. Located in the Pacific Time Zone at 35.7°N latitude.

In 2025, Lake Nacimiento recorded an average annual temperature of 62°F — about 1.6°F above the 30-year normal of 60°F. The hottest day reached 105°F in August; the coldest was 33°F in February. Total precipitation was 16 inches (wetter than usual). The wettest month was December.