March in Santa Maria averages a daily high of 19.1°C with nights around 6.4°C. Expect roughly 7.6 wet days totalling 60.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Santa Maria is April–November.
Based on SANTA MARIA PUBLIC AIRPORT, CA US (6.7km), 1995–2024. 30 years of March data.