Weather in the Temecula Valley is comparable to the weather in the Napa Valley, as evidenced by a burgeoning wine industry, with warm, dry days and cool evenings.
Although separated from the Pacific by the Santa Rosa range, the Rainbow Gap funnels the mild beach climate into the valley. Average summer highs are 85 degrees; winter lows 39 degrees. Yearly average rainfall in Temecula is approximately 14 inches, as compiled by the Rancho California Water District.
The quality of air in the Temecula Valley is consistently better than that of surrounding counties. Ocean breezes flow through the valley almost every day, sweeping away smog. In the summer, you might typically feel the gentle Pacific winds that help keep temperatures lower than what you would find in some of the surrounding area.
Find out more about the Temecula Valley Wine Country.