January in Atlanta averages a daily high of 12.2°C with nights around 0.6°C. Expect roughly 10.6 wet days totalling 102.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Atlanta is March–May.
Based on ATLANTA FULTON CO AIRPORT, GA US (13km), 1995–2024. 25 years of January data.