January in Kāshān averages a daily high of 11.5°C with nights around -0.1°C. Expect roughly 4.1 wet days totalling 15.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kāshān is March–April.
Based on KASHAN, IR (17.5km), 1995–2024. 23 years of January data.