March in Watsonville averages a daily high of 18.4°C with nights around 6.4°C. Expect roughly 10 wet days totalling 83.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Watsonville is May–October.
Based on WATSONVILLE WATERWORKS, CA US (2.5km), 1995–2024. 29 years of March data.