Average temperatures, rainfall and packing tips for Tehran, Iran in September
September in Tehran is typically hot, with average daytime highs around 32°C and nights near 20°C. Temperature-wise it sits mid-range for Tehran (the 4th warmest month).
Rainfall is light in September: roughly 18 mm across the whole month.
If your dates are flexible, the most comfortable months in Tehran are usually April, May and October.
← Tehran weather tomorrow (live)
In September, Tehran averages a daytime high of about 32°C and a night-time low of around 20°C, based on recent historical data.
Rainfall is light in September: roughly 18 mm across the whole month.
September is a workable time to visit Tehran, with hot days - just pack accordingly. If your dates are flexible, the most comfortable months in Tehran are usually April, May and October.