Shahreẕā weather in September

In September, Shahreẕā sees average daytime highs of 29°C and overnight lows near 13°C, with 0 mm of rain across 0 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 31°C in the first days to 27°C by the end. The sky is clear or mostly clear about 93% 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 Shahreẕā's 1st-clearest and 9th-windiest month. For the whole year in context, see Shahreẕā's year-round climate.

Daytime high
29°
4th warmest
Overnight low
13°
9th coldest
Rainfall
0 mm
0 wet days
Daylight
12 h 12 min
5:51 AM – 6:03 PM
Cloud cover
11%
1st clearest
Wind
8 km/h
9th windiest
Solar energy
6.5 kWh/m²
Travel score
7.6
out of 10

Shahreẕā is city in Isfahan 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 31°C in the first days to 27°C by the end.

A typical September day in Shahreẕā reaches about 29°C in the afternoon and slips back to 13°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°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)
13116
23116
33115
43115
53115
63115
73015
83015
93014
103014
113014
123014
133014
142914
152913
162913
172913
182913
192913
202812
212812
222812
232812
242812
252712
262711
272711
282711
292611
302611

How September really feels in Shahreẕā

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.

Shahreẕā 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 / -5°254.53.410.11.1
Feb10° / -3°183.6210.82.7
Mar15° / 193.80.911.85.3
Apr20° / 1440.112.87.4
May26° / 12°82.6013.68.2
Jun32° / 17°10.4014.15.8
Jul34° / 19°00.1013.94.2
Aug33° / 18°00.1013.25.1
Sep29° / 13°00012.27.6
Oct23° / 31.1011.28.9
Nov15° / 162.60.410.45.5
Dec10° / -3°183.81.99.92.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 93% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 1%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
22991
23991
24991
25982
26982
27982
28982
29973
30973

Chance of precipitation in September

Any precipitation

Shahreẕā gets around 0 mm of rain over 0 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 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
170
180
190
200
210
220
230
240
250
260
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 (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 8 km/h in September.

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

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 5:42 AM to 6:00 AM, and sunset from 6:23 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:426:23
212.75:426:22
312.65:436:20
412.65:436:19
512.65:446:18
612.55:456:16
712.55:456:15
812.55:466:14
912.45:476:12
1012.45:476:11
1112.45:486:10
1212.35:496:08
1312.35:496:07
1412.35:506:05
1512.25:506:04
1612.25:516:03
1712.25:526:01
1812.15:526:00
1912.15:535:59
2012.15:545:57
2112.05:545:56
2212.05:555:54
2312.05:565:53
2411.95:565:52
2511.95:575:50
2611.95:585:49
2711.85:585:48
2811.85:595:46
2911.85:595:45
3011.76:005:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.5 kWh/m².

For context, solar energy here swings from a low near 3.48 kWh/m² to a high of 8.03 kWh/m² in June across the year — September's 6.5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
36.9Intense
46.9Intense
56.9Intense
66.8Intense
76.8Intense
86.8Intense
96.7Intense
106.7Intense
116.7Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.5Intense
176.4Intense
186.4Intense
196.4Intense
206.3Intense
216.3Intense
226.3Intense
236.2Intense
246.2Intense
256.1Intense
266.1Intense
276.0Intense
286.0Intense
296.0Bright
305.9Bright
Planning a trip in September

Is September a good time to visit Shahreẕā?

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

7.6
Sightseeing
3rd-best month of the year
9.2
Beach & pool
1st-best month of the year

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

What to pack for Shahreẕā in September

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

In September, Shahreẕā sees daytime highs around 29°C and nights near 13°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Shahreẕā in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shahreẕā peaks around July 20 at about 11 (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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 20UV 11Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb6High
Mar7Very high
Apr8Very high
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct8Very high
Nov5Moderate
Dec4Moderate

Air quality in Shahreẕā 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 Shahreẕā is worst in April — around 40 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 22 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1740 µg/m³Aug 1623 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb34Moderate
Mar36Poor
Apr40Poor
May37Poor
Jun26Moderate
Jul29Moderate
Aug22Moderate
Sep29Moderate
Oct31Moderate
Nov30Moderate
Dec32Moderate
Location & terrain

Where is Shahreẕā?

Shahreẕā sits at 32.0°N, 51.9°E, 1,822 m above sea level, in Iran. The nearest listed city is Dehāqān, 22 km away.

Topography around Shahreẕā

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

Within 3 km, the terrain around Shahreẕā has significant variations in elevation — a maximum elevation change of 427 m around an average of 1,839 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 980 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,235 m.

The land around Shahreẕā is covered by artificial surfaces (51%) and bare terrain (34%) within 3 km, bare terrain (90%) within 16 km, and bare terrain (74%) within 80 km.

3 km
427 m
16 km
980 m
80 km
2,235 m
treesgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Dehāqān 22 km · Mobārakeh 51 km · Dīzīcheh 54 km · Bahārestān 54 km · Borūjen 55 km · Varnāmkhvāst 60 km · Zarrīn Shahr 63 km · Chamgordān 65 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 Shahreẕā (32.0088°, 51.8641°, elevation 1,822 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).