May in Amman averages a daily high of 30°C with nights around 12.5°C. Rain is rare — about 0.5 wet days and 0.5mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Amman is October–November.
Based on KING HUSSEIN, JO (53.5km), 1995–2024. 13 years of May data.