Qom weather in September

In September, Qom sees average daytime highs of 35°C and overnight lows near 20°C, with 0 mm of rain across 0.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 37°C in the first days to 32°C by the end. The sky is clear or mostly clear about 97% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Qom's 2nd-clearest and 7th-windiest month. For the whole year in context, see Qom's year-round climate.

Daytime high
35°
4th warmest
Overnight low
20°
9th coldest
Rainfall
0 mm
0.1 wet days
Daylight
12 h 12 min
5:54 AM – 6:07 PM
Cloud cover
5%
2nd clearest
Wind
10 km/h
7th windiest
Solar energy
6.1 kWh/m²
Travel score
3.4
out of 10

Qom is city in Qom Province, Iran.

Density
7,313/km²
people per km²
Founded
~805 CE

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 37°C in the first days to 32°C by the end.

A typical September day in Qom reaches about 35°C in the afternoon and slips back to 20°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 38°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13823
23823
33723
43722
53722
63722
73722
83722
93621
103621
113621
123621
133621
143621
153520
163520
173520
183520
193520
203419
213419
223419
233419
243319
253319
263318
273318
283318
293218
303218

How September really feels in Qom

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
heat index over the day's high
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.

Qom weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 214.71.59.93.4
Feb15° / 184.40.710.75.2
Mar20° / 255.20.111.77.4
Apr26° / 15°194.6012.87.5
May33° / 20°92.2013.84.5
Jun38° / 25°10.3014.31.2
Jul41° / 27°00.1014.10.0
Aug39° / 25°00013.30.4
Sep35° / 20°00.1012.23.4
Oct28° / 14°61.5011.17.6
Nov18° / 183.6010.26.9
Dec12° / 194.40.29.74.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 97% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 2% of September, with mostly cloudy or overcast conditions the remaining 1%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
17991
18991
19991
20991
21991
22982
23973
24973
25973
26973
27964
28964
29964
30964

Chance of precipitation in September

Any precipitation

Qom gets around 0 mm of rain over 0.1 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 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:43 AM to 6:05 AM, and sunset from 6:29 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:436:29
212.75:446:28
312.75:456:26
412.75:466:25
512.65:466:23
612.65:476:22
712.55:486:20
812.55:496:19
912.55:496:18
1012.45:506:16
1112.45:516:15
1212.45:516:13
1312.35:526:12
1412.35:536:10
1512.35:546:09
1612.25:546:07
1712.25:556:06
1812.15:566:04
1912.15:576:03
2012.15:576:01
2112.05:586:00
2212.05:595:58
2312.06:005:57
2411.96:005:55
2511.96:015:54
2611.86:025:52
2711.86:035:51
2811.86:035:50
2911.76:045:48
3011.76:055:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.1 kWh/m².

For context, solar energy here swings from a low near 2.76 kWh/m² to a high of 7.85 kWh/m² in June across the year — September's 6.1 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.6Intense
46.6Intense
56.5Intense
66.5Intense
76.5Intense
86.4Intense
96.4Intense
106.3Intense
116.3Intense
126.3Intense
136.2Intense
146.2Intense
156.1Intense
166.1Intense
176.0Intense
186.0Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Qom

In seasonPeak

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

Qom sees seasonal dust haze (July), heaviest in July.

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

Is September a good time to visit Qom?

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

3.4
Sightseeing
8th-best month of the year
7.1
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Qom. The water and warmth also suit a beach or pool day.

What to pack for Qom in September

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

In September, Qom sees daytime highs around 35°C and nights near 20°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Qom in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Qom peaks around July 19 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 19UV 10Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul11Extreme
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Qom 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 Qom is worst in December — around 98 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (August, 38 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 2097 µg/m³Aug 1239 µg/m³
PM2.5 (µg/m³)Level
Jan94Unhealthy
Feb87Unhealthy
Mar75Unhealthy
Apr73Unhealthy
May64Unhealthy
Jun47Poor
Jul42Poor
Aug38Poor
Sep52Poor
Oct69Unhealthy
Nov89Unhealthy
Dec98Unhealthy
Location & terrain

Where is Qom?

Qom sits at 34.6°N, 50.9°E, 935 m above sea level, in Iran. The nearest listed city is Shahrak-e Pardīsān, 11 km away.

Topography around Qom

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

Within 3 km, the terrain around Qom has only modest variations in elevation — a maximum elevation change of 38 m around an average of 930 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 728 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,644 m.

The land around Qom is covered by artificial surfaces (93%) within 3 km, bare terrain (68%) within 16 km, and bare terrain (81%) within 80 km.

3 km
38 m
16 km
728 m
80 km
2,644 m
treesgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Shahrak-e Pardīsān 11 km · Sāveh 64 km · Delījān 74 km · Tafresh 79 km · Māmūnīyeh 81 km · Ārān Bīdgol 85 km · Ḩasanābād 87 km · Kashan 89 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 Qom (34.6401°, 50.8764°, elevation 935 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).