January in South Fulton averages a daily high of 12.3°C with nights around 2°C. Expect roughly 11 wet days totalling 119.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit South Fulton is April–May.
Based on ATLANTA HARTSFIELD JACKSON INTERNATIONAL AIRPORT, GA US (21.8km), 1995–2024. 30 years of January data.