December in Amman averages a daily high of 15.7°C with nights around 3.9°C. Expect roughly 5 wet days totalling 9.7mm. 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. 20 years of December data.