December in Nasīm Shahr averages a daily high of 10.8°C with nights around 2.9°C. Expect roughly 5.3 wet days totalling 24.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nasīm Shahr is April.
Based on TEHRAN MEHRABAD, IR (19.1km), 1995–2024. 12 years of December data.