November in Fountain Valley averages a daily high of 22.7°C with nights around 11.8°C. Expect roughly 4.3 wet days totalling 17.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Fountain Valley is April–November.
Based on SANTA ANA JOHN WAYNE AIRPORT, CA US (8.6km), 1995–2024. 26 years of November data.