May in Orūmīyeh averages a daily high of 23.7°C with nights around 9.4°C. Expect roughly 8.8 wet days totalling 32.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Orūmīyeh is September–October.
Based on UROMIYEH, IR (12.8km), 1995–2024. 14 years of May data.