Tīrān in Fall
In fall (September, October and November), Tīrān sees average daytime highs around 23°C and overnight lows near 8°C, with 28 mm of precipitation over about 6 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 32°C in early September to 12°C by late November. The sky is clear or mostly clear about 75% of the time across fall, and the air most often feels dry.
Fall is Tīrān's best season of the year to visit on our travel score. For the whole year in context, see Tīrān's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 8°C
- Precipitation
- 28 mm
- 6 wet days
- Avg wind
- 8 km/h
- Travel score
- 7.0
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Tīrān in Fall
Over the season highs ease from about 32°C in early September to 12°C by late November.
A typical fall day in Tīrān reaches about 23°C and drops to 8°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Tīrān
Once humidity and wind are folded in, fall brings about 2 days that feel above 32°C and 16 that feel at or below 0°C.
Tīrān sees both extremes in fall: hot, sticky afternoons and freezing nights both show up.
Tīrān weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / -6° | 21 | 4.5 | 3 | 10.1 | 1.2 |
| Feb | 11° / -3° | 20 | 4 | 1.7 | 10.8 | 3.1 |
| Mar | 15° / 2° | 22 | 5.1 | 0.8 | 11.8 | 5.5 |
| Apr | 21° / 7° | 17 | 5.1 | 0 | 12.8 | 7.3 |
| May | 26° / 13° | 14 | 4 | 0 | 13.7 | 7.7 |
| Jun | 32° / 18° | 2 | 0.6 | 0 | 14.1 | 5.1 |
| Jul | 35° / 21° | 1 | 0.1 | 0 | 13.9 | 3.5 |
| Aug | 34° / 19° | 0 | 0.1 | 0 | 13.2 | 4.3 |
| Sep | 30° / 15° | 1 | 0.3 | 0 | 12.2 | 6.9 |
| Oct | 23° / 9° | 7 | 2.4 | 0 | 11.2 | 8.6 |
| Nov | 15° / 2° | 20 | 3.5 | 0.5 | 10.3 | 5.4 |
| Dec | 10° / -3° | 19 | 4.2 | 1.6 | 9.9 | 2.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 75% of the time across fall.
Chance of precipitation in Fall
Tīrān gets around 28 mm of rain and snow over 6 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early September to 10 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.1 kWh/m².
Is fall a good time to visit Tīrān?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Tīrān for sightseeing.
What to pack for Tīrān in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tīrān sees daytime highs around 23°C and nights near 8°C. Pack light clothes and sun protection. Worth having: a warm layer. About 6 days see rain.
UV index in Tīrān in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tīrān peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 6 | 7 | 8 | 11 | 11 | 12 | 11 | 8 | 7 | 4 | 3 |
| Level | Moderate | High | High | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 8 | Very high |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 7 | Very high |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Tīrān in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Tīrān is worst in April — around 37 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 21 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 26 | 29 | 33 | 37 | 36 | 25 | 28 | 21 | 25 | 26 | 24 | 25 |
| Level | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 26 | Moderate |
| Feb | 29 | Moderate |
| Mar | 33 | Moderate |
| Apr | 37 | Poor |
| May | 36 | Poor |
| Jun | 25 | Moderate |
| Jul | 28 | Moderate |
| Aug | 21 | Moderate |
| Sep | 25 | Moderate |
| Oct | 26 | Moderate |
| Nov | 24 | Moderate |
| Dec | 25 | Moderate |
Where is Tīrān?
Tīrān sits at 32.7°N, 51.2°E, 1,839 m above sea level, in Iran. The nearest listed city is Najafābād, 21 km away.
Topography around Tīrān
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tīrān.
Within 3 km, the terrain around Tīrān has significant variations in elevation — a maximum elevation change of 317 m around an average of 1,863 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,064 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,334 m.
The land around Tīrān is covered by bare terrain (69%) within 3 km, bare terrain (92%) within 16 km, and bare terrain (65%) within 80 km.
Iran travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 352% of US
- price level, 2025
- GDP per capita
- $3,924
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Safe drinking water
- 94%
- of population, 2024
- Homicide rate
- 2.4
- per 100k, 2014
- Road deaths
- 21.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 492
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Tīrān (32.7033°, 51.1538°, elevation 1,839 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.