November in Brentwood averages a daily high of 18.4°C with nights around 7.7°C. Expect roughly 4.7 wet days totalling 31.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Brentwood is April–May.
Based on ANTIOCH PUMPING PLANT NUMBER 3, CA US (7.6km), 1995–2024. 21 years of November data.