Tehran weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Tehran in September. Check more long-term weather averages for Tehran in September before you book your next holiday to Iran in 2025/2026.

  • 30°C maximum daytime temperature in September in Tehran30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 2 days with some rainfall in September in Tehran2
    2 days with some rainfall
  • 17°C minimum night-time temperature in September in Tehran17
    17°C min night temperature
  • 12 hours of daylight per day in September in Tehran12
    12 hours of daylight per day
  • Moderate heat & humidity in September in TehranM
    Moderate heat & humidity
  • 3 mm monthly rainfall in September in Tehran3
    3 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Tehran9
    9 (Very High) UV index

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The September weather guide for Iran (Tehran) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Tehran in September?

Daytime temperatures usually reach 30°C in Tehran in September with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Tehran in September?

There are normally 10 hours of bright sunshine each day in Tehran in September - that's 80% of daylight hours.

Does it ever rain in Tehran in September?

There are usually 2 days with some rain in Tehran in September and the average monthly rainfall is 3mm.

Tehran September sunrise & sunset times

Browse the sunrise and sunset times for Tehran in September 2025. Select a month to view Tehran sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:36 18:32
Monday, 15th September 2025 05:47 18:11
Tuesday, 30th September 2025 05:58 17:50

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