December in Mashhad averages a daily high of 10.8°C with nights around 0°C. Expect roughly 4.2 wet days totalling 14.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mashhad is October.
Based on MASHHAD, IR (4.2km), 1995–2024. 19 years of December data.