Dezful weather in September

In September, Dezful sees average daytime highs of 41°C and overnight lows near 23°C, with 1 mm of rain across 0.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 43°C in the first days to 39°C by the end. The sky is clear or mostly clear about 99% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Dezful's 2nd-clearest and 7th-windiest month. For the whole year in context, see Dezful's year-round climate.

Daytime high
41°
4th warmest
Overnight low
23°
9th coldest
Rainfall
1 mm
0.3 wet days
Daylight
12 h 12 min
6:05 AM – 6:17 PM
Cloud cover
3%
2nd clearest
Wind
7 km/h
7th windiest
Solar energy
6.34 kWh/m²
Travel score
0.2
out of 10

Dezful is city in Khuzestan Province, Iran.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 43°C in the first days to 39°C by the end.

A typical September day in Dezful reaches about 41°C in the afternoon and slips back to 23°C overnight — a 18°C spread between the day's warmth and the night's chill. On most days the high lands between 38°C and 44°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

20°30°40°50°151015202530
Avg high (°C)Avg low (°C)
14426
24426
34326
44325
54325
64325
74325
84325
94224
104224
114224
124224
134224
144224
154123
164123
174123
184123
194123
204023
214023
224022
234022
244022
253922
263922
273922
283922
293922
303821

How September really feels in Dezful

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
26 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Dezful weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 1329.710.15.5
Feb18° / 947.910.86.5
Mar23° / 11°1137.311.87.5
Apr29° / 16°705.312.86.4
May37° / 21°91.613.62.0
Jun43° / 25°0014.10.0
Jul45° / 28°0013.90.0
Aug45° / 28°0013.20.0
Sep41° / 23°10.312.20.2
Oct34° / 19°221.711.23.8
Nov24° / 13°896.210.37.6
Dec18° / 1358.39.96.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 99% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 1% of September, with mostly cloudy or overcast conditions the remaining 0%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
23991
24991
25991
26991
27991
28991
29973
30973

Chance of precipitation in September

Any precipitation

Dezful gets around 1 mm of rain over 0.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
281
291
301

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19631
29631
39631
49721
59721
69721
79721
89721
99721
109721
119721
129721
139721
149820
159910
169910
179910
189910
199910
209910
219910
229910
239910
249910
259820
269820
279820
289820
299910
309910

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 5:55 AM to 6:14 AM, and sunset from 6:37 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:556:37
212.75:566:36
312.65:566:34
412.65:576:33
512.65:586:32
612.55:586:30
712.55:596:29
812.56:006:28
912.46:006:26
1012.46:016:25
1112.46:026:24
1212.36:026:22
1312.36:036:21
1412.36:046:19
1512.26:046:18
1612.26:056:17
1712.26:056:15
1812.16:066:14
1912.16:076:12
2012.16:076:11
2112.06:086:10
2212.06:096:08
2312.06:096:07
2411.96:106:05
2511.96:116:04
2611.96:116:03
2711.86:126:01
2811.86:136:00
2911.86:135:59
3011.76:145:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.34 kWh/m².

For context, solar energy here swings from a low near 2.88 kWh/m² to a high of 7.96 kWh/m² in June across the year — September's 6.34 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.9Intense
26.8Intense
36.8Intense
46.8Intense
56.7Intense
66.7Intense
76.7Intense
86.6Intense
96.6Intense
106.6Intense
116.5Intense
126.5Intense
136.5Intense
146.4Intense
156.4Intense
166.3Intense
176.3Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.0Intense
246.0Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
Planning a trip in September

Hazard calendar for Dezful

In seasonPeak

None of Dezful's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Dezful's rainy season runs November–April, when most of the year's rain falls.

Dezful sees seasonal dust haze (March–May), heaviest in May.

Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Dezful?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.2
Sightseeing
9th-best month of the year
2.4
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Dezful.

What to pack for Dezful in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Dezful sees daytime highs around 41°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Dezful in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks 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 Dezful peaks around June 15 at about 9 (very high) — 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 15UV 9Jan 13UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Dezful in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Dezful is worst in May — around 51 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (November, 31 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1050 µg/m³Nov 1831 µg/m³
PM2.5 (µg/m³)Level
Jan35Poor
Feb42Poor
Mar48Poor
Apr49Poor
May51Poor
Jun35Poor
Jul36Poor
Aug33Moderate
Sep32Moderate
Oct32Moderate
Nov31Moderate
Dec32Moderate
Location & terrain

Where is Dezful?

Dezful sits at 32.4°N, 48.4°E, 143 m above sea level, in Iran. The nearest listed city is Andīmeshk, 10 km away.

Topography around Dezful

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dezful.

Within 3 km, the terrain around Dezful has only modest variations in elevation — a maximum elevation change of 42 m around an average of 136 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 279 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,662 m.

The land around Dezful is covered by artificial surfaces (64%) within 3 km, cropland (63%) within 16 km, and grassland (48%) and cropland (29%) within 80 km.

3 km
42 m
16 km
279 m
80 km
2,662 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Andīmeshk 10 km · Shush 26 km · Gotvand 41 km · Shūshtar 56 km · Lālī 65 km · Sūsangerd 93 km · Masjed Soleymān 98 km · Ḥamīdiyeh 100 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
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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 Dezful (32.3811°, 48.4058°, elevation 143 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).