About Discovery Bay, CA

Discovery Bay, in California, United States, is home to roughly 13,400 people in the Pacific Time Zone at 37.9°N latitude.

Recent weather here gives a sense of typical conditions: in 2025, Discovery Bay recorded a mean annual temperature of 61°F, ranging from 33°F lows in January to 104°F highs in July, with about 19 inches of precipitation across the year.