August in Roswell averages a daily high of 31.8°C with nights around 21.1°C. Expect roughly 11.7 wet days totalling 119.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Roswell is September–November.
Based on ATLANTA DEKALB PEACHTREE AIRPORT, GA US (17.1km), 1995–2024. 27 years of August data.