May in Cary averages a daily high of 26.7°C with nights around 14.5°C. Expect roughly 7.3 wet days totalling 97.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cary is April–May.
Based on RALEIGH STATE UNIVERSITY, NC US (7.4km), 1995–2024. 29 years of May data.