August in Cary averages a daily high of 31.5°C with nights around 20.8°C. Expect roughly 7.8 wet days totalling 123.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Cary is April–May.
Based on RALEIGH STATE UNIVERSITY, NC US (7.4km), 1995–2024. 30 years of August data.