May in Athens averages a daily high of 27.8°C with nights around 14.9°C. Expect roughly 9.1 wet days totalling 83.3mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Athens is March–May.
Based on ATHENS BEN EPPS AIRPORT, GA US (4.9km), 1995–2024. 30 years of May data.