Darreh Shahr in Fall
In fall (September, October and November), Darreh Shahr sees average daytime highs around 26°C and overnight lows near 11°C, with 100 mm of rain over about 10 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 37°C in early September to 15°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 Darreh Shahr's 2nd-best season to visit on our travel score. For the whole year in context, see Darreh Shahr's year-round climate.
- Avg daytime high
- 26°C
- 2nd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 100 mm
- 10 wet days
- Avg wind
- 6 km/h
- Travel score
- 6.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Darreh Shahr in Fall
Over the season highs ease from about 37°C in early September to 15°C by late November.
A typical fall day in Darreh Shahr reaches about 26°C and drops to 11°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Darreh Shahr
Once humidity and wind are folded in, fall brings about 25 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Darreh Shahr 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 | 11° / 1° | 93 | 9.6 | 2.3 | 10.1 | 2.6 |
| Feb | 13° / 2° | 79 | 9.4 | 1 | 10.8 | 3.6 |
| Mar | 17° / 5° | 92 | 8.7 | 0.1 | 11.7 | 5.7 |
| Apr | 22° / 10° | 68 | 7.6 | 0 | 12.8 | 7.3 |
| May | 29° / 14° | 16 | 3.2 | 0 | 13.7 | 6.6 |
| Jun | 36° / 18° | 0 | 0.1 | 0 | 14.1 | 2.9 |
| Jul | 39° / 21° | 0 | 0 | 0 | 14 | 0.8 |
| Aug | 39° / 20° | 0 | 0 | 0 | 13.2 | 1.0 |
| Sep | 34° / 16° | 1 | 0.1 | 0 | 12.2 | 4.1 |
| Oct | 27° / 11° | 27 | 3.1 | 0 | 11.2 | 7.7 |
| Nov | 18° / 6° | 73 | 7.2 | 0 | 10.3 | 6.3 |
| Dec | 13° / 2° | 87 | 8.5 | 0.6 | 9.8 | 3.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 75% of the time across fall.
Chance of precipitation in Fall
Darreh Shahr gets around 100 mm of rain over 10 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 6 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 4.9 kWh/m².
Hazard calendar for Darreh Shahr
In fall, Darreh Shahr overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Darreh Shahr's rainy season runs November–April, when most of the year's rain falls.
Darreh Shahr sees seasonal dust haze (March–May), heaviest in May.
Is fall a good time to visit Darreh Shahr?
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 Darreh Shahr for sightseeing.
What to pack for Darreh Shahr in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Darreh Shahr sees daytime highs around 26°C and nights near 11°C. Pack light clothes and sun protection. Worth having: a warm layer. About 10 days see rain.
UV index in Darreh Shahr in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Darreh Shahr peaks around June 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 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 | 4 | 5 | 7 | 10 | 11 | 10 | 10 | 7 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | High | Very high | Extreme | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 7 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Darreh Shahr 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 Darreh Shahr is worst in April — around 42 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (November, 26 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) | 27 | 32 | 39 | 42 | 41 | 35 | 35 | 33 | 32 | 30 | 26 | 26 |
| Level | Moderate | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 27 | Moderate |
| Feb | 32 | Moderate |
| Mar | 39 | Poor |
| Apr | 42 | Poor |
| May | 41 | Poor |
| Jun | 35 | Poor |
| Jul | 35 | Poor |
| Aug | 33 | Moderate |
| Sep | 32 | Moderate |
| Oct | 30 | Moderate |
| Nov | 26 | Moderate |
| Dec | 26 | Moderate |
Where is Darreh Shahr?
Darreh Shahr sits at 33.1°N, 47.4°E, 667 m above sea level, in Iran. The nearest listed city is Ābdānān, 17 km away.
Topography around Darreh Shahr
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Darreh Shahr.
Within 3 km, the terrain around Darreh Shahr has significant variations in elevation — a maximum elevation change of 318 m around an average of 686 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,666 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,732 m.
The land around Darreh Shahr is covered by cropland (42%) and grassland (39%) within 3 km, grassland (62%) and cropland (22%) within 16 km, and grassland (63%) and bare terrain (21%) 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 Darreh Shahr (33.1445°, 47.3799°, elevation 667 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.