May in Santa Cruz averages a daily high of 21.5°C with nights around 9.6°C. Expect roughly 3.6 wet days totalling 22.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Santa Cruz is May–October.
Based on SANTA CRUZ, CA US (3.2km), 1995–2024. 26 years of May data.