August in Chapel Hill averages a daily high of 31°C with nights around 19.9°C. Expect roughly 10.1 wet days totalling 114.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chapel Hill is April–May.
Based on CHAPEL HILL 2 W, NC US (2.2km), 1995–2024. 29 years of August data.