Dāmghān weather in September

In September, Dāmghān sees average daytime highs of 25°C and overnight lows near 15°C, with 15 mm of rain across 4.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 86% 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 Dāmghān's 2nd-clearest and 6th-windiest month. For the whole year in context, see Dāmghān's year-round climate.

Daytime high
25°
4th warmest
Overnight low
15°
9th coldest
Rainfall
15 mm
4.7 wet days
Daylight
12 h 12 min
5:40 AM – 5:54 PM
Cloud cover
19%
2nd clearest
Wind
7 km/h
6th windiest
Solar energy
5.58 kWh/m²
Travel score
8.3
out of 10

Dāmghān is city in Semnan Province, Iran.

Density
3,224/km²
people per km²

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 27°C in the first days to 23°C by the end.

A typical September day in Dāmghān reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82616
92616
102616
112616
122616
132616
142615
152515
162515
172515
182515
192514
202414
212414
222414
232414
242313
252313
262313
272313
282313
292212
302212

How September really feels in Dāmghān

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Dāmghān weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°225.45.59.80.0
Feb / -3°286.75.610.60.2
Mar10° / 459.45.411.72.3
Apr16° / 439.91.512.95.2
May22° / 12°3410.40.113.96.8
Jun27° / 17°206.7014.47.3
Jul30° / 19°184.8014.26.3
Aug29° / 19°195.2013.47.0
Sep25° / 15°154.7012.28.3
Oct19° / 2660.211.16.9
Nov10° / 266.6310.12.8
Dec / -2°195.34.39.60.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 5%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1982
2982
3982
4982
5982
6982
7982
8973
9973
10973
11973
12973
13964
14964
15964
16964
17964
18955
19955
20955
21955
22946
23937
24937
25928
26928
27928
289010
299010
309010

Chance of precipitation in September

Any precipitation

Dāmghān gets around 15 mm of rain over 4.7 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 19% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
117
217
316
416
515
615
714
814
914
1014
1114
1214
1315
1415
1515
1616
1716
1816
1917
2017
2118
2218
2318
2418
2518
2618
2719
2819
2919
3019

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
183161
285150
387130
488120
589110
690100
79190
89280
99370
109460
119460
129550
139550
149640
159640
169730
179730
189820
199820
209820
219910
229910
239910
249910
2510000
2610000
2710000
2810000
2910000
3010000

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 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
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 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 5:28 AM to 5:52 AM, and sunset from 6:17 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:286:17
212.85:296:15
312.75:306:14
412.75:316:12
512.75:316:11
612.65:326:09
712.65:336:08
812.55:346:06
912.55:356:05
1012.55:356:03
1112.45:366:01
1212.45:376:00
1312.35:385:58
1412.35:395:57
1512.35:395:55
1612.25:405:54
1712.25:415:52
1812.15:425:51
1912.15:435:49
2012.15:435:48
2112.05:445:46
2212.05:455:44
2312.05:465:43
2411.95:475:41
2511.95:475:40
2611.85:485:38
2711.85:495:37
2811.85:505:35
2911.75:515:34
3011.75:525:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.58 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 7.4 kWh/m² in June across the year — September's 5.58 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.1Intense
46.1Intense
56.0Intense
66.0Intense
76.0Bright
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Dāmghān?

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

8.3
Sightseeing
1st-best month of the year
7.3
Beach & pool
4th-best month of the year

September is one of the better times to visit Dāmghān for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Dāmghān in September

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

In September, Dāmghān sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Dāmghān 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 Dāmghān peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 18UV 11Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7Very high
May9Very high
Jun9Very high
Jul11Extreme
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Dāmghān 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 Dāmghān is worst in April — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1524 µg/m³Aug 1018 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar22Moderate
Apr25Moderate
May22Moderate
Jun18Moderate
Jul18Moderate
Aug18Moderate
Sep22Moderate
Oct19Moderate
Nov19Moderate
Dec19Moderate
Location & terrain

Where is Dāmghān?

Dāmghān sits at 36.2°N, 54.3°E, 1,154 m above sea level, in Iran. The nearest listed city is Shahrud, 63 km away.

Topography around Dāmghān

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

Within 3 km, the terrain around Dāmghān has only modest variations in elevation — a maximum elevation change of 82 m around an average of 1,158 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 951 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,905 m.

The land around Dāmghān is covered by bare terrain (44%) and artificial surfaces (36%) within 3 km, bare terrain (82%) within 16 km, and bare terrain (60%) and grassland (20%) within 80 km.

3 km
82 m
16 km
951 m
80 km
3,905 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Shahrud 63 km · Kord Kūy 73 km · Gorgān 76 km · Bandar-e Gaz 76 km · Galūgāh 78 km · Bandar-e Torkaman 85 km · Fāẕelābād 89 km · Behshahr 92 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 Dāmghān (36.1679°, 54.3429°, elevation 1,154 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).