Tehran Weather in September: Climate, Temperature & Travel Tips
Avg 26.4°C · 1mm rain — September is autumn in Tehran.
- Avg high
- 32.0 °C
- Avg low
- 20.8 °C
- Avg
- 26.4 °C
- Precipitation
- 1 mm
Source: Open-Meteo Archive 2014–2023 · 10-year climate normals
Climate Overview
September in Tehran, Iran brings autumn conditions: average temperature 26.4°C, average high 32.0°C, average low 20.8°C. Monthly rainfall averages 1mm, making it a very dry time of year.
Plan outdoor activities around midday heat with shade and frequent hydration.
What to Pack
- Lightweight breathable clothing; sun hat
- Sunscreen and ample hydration
Best Things to Do
- Visit outdoor sights in early morning or late afternoon
- Air-conditioned museums and galleries
- Pool or waterfront activities
Pros and Cons of Visiting in September
Pros:
- Low rainfall — minimal disruption to outdoor plans
- Shoulder season often means smaller crowds and lower prices
Cons:
- Hot weather may limit midday outdoor activities
Climate source: Open-Meteo Archive (2014–2023).
Colour = avg temperature · blue = cool · orange = warm
- 1 July 31.4°C
- 2 August 30.0°C
- 3 June 28.9°C
- 1 January 5.2°C
- 2 December 6.8°C
- 3 February 7.6°C
FAQ
01 What is the average temperature in Tehran in September? +
The average is 26.4°C, with a high of 32°C and a low of 21°C.
02 What is Tehran like to visit in September? +
It is autumn in Tehran, which is hot — plan around midday heat.
03 Does it rain often in Tehran during September? +
Average rainfall is 1mm, which is very dry.
04 What should I pack for Tehran in September? +
Lightweight breathable clothing; sun hat; Sunscreen and ample hydration.
05 Is September a peak travel season for Tehran? +
It is closer to off-season, with more reasonable prices and fewer crowds.
06 Where does this climate data come from? +
Monthly averages computed from Open-Meteo Archive 2014–2023 daily observations.
- Sources
- Open-Meteo Archive 2014-2023
- Updated
- 2026-04-17