Āq Qalā weather in September

In September, Āq Qalā sees average daytime highs of 31°C and overnight lows near 21°C, with 36 mm of rain across 5.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 29°C by the end. The sky is clear or mostly clear about 76% of the time in September, and the air most often feels muggy.

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 Āq Qalā's 2nd-clearest and 7th-windiest month. For the whole year in context, see Āq Qalā's year-round climate.

Daytime high
31°
4th warmest
Overnight low
21°
9th coldest
Rainfall
36 mm
5.6 wet days
Daylight
12 h 12 min
5:40 AM – 5:53 PM
Cloud cover
23%
2nd clearest
Wind
6 km/h
7th windiest
Solar energy
4.86 kWh/m²
Travel score
5.2
out of 10

Āq Qalā is city in Golestan 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 33°C in the first days to 29°C by the end.

A typical September day in Āq Qalā reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 36°C. Set against its neighbours, September runs about 3°C cooler than August and about 6°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13424
23323
33323
43323
53323
63323
73323
83323
93223
103222
113222
123222
133222
143222
153122
163121
173121
183121
193121
203121
213021
223020
233020
243020
253020
263019
272919
282919
292919
302919

How September really feels in Āq Qalā

Once humidity and wind are folded in, September averages 15 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
15
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.

Āq Qalā 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 daysSnow daysDaylight (hours)Travel score
Jan13° / 659.10.69.73.9
Feb14° / 729.51.310.64.2
Mar17° / 7410.40.211.75.6
Apr22° / 13°568.6012.97.0
May27° / 18°365.80146.9
Jun32° / 22°183.4014.55.1
Jul34° / 25°194.6014.33.8
Aug34° / 25°184.1013.43.5
Sep31° / 21°365.6012.35.2
Oct26° / 16°5460117.7
Nov19° / 10°758.50.2106.5
Dec15° / 588.50.29.54.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 76% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
29010
39010
49010
58911
69010
79010
89010
98911
108911
118812
128812
138812
148812
158812
168812
178713
188713
198614
208614
218515
228515
238416
248416
258416
268317
278317
288218
298218
308218

Chance of precipitation in September

Any precipitation

Āq Qalā gets around 36 mm of rain over 5.6 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 18% and peaks near 22% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
113
213
313
414
514
615
715
816
916
1016
1117
1217
1317
1418
1518
1618
1719
1819
1919
2020
2120
2220
2321
2421
2521
2621
2722
2822
2922
3022

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1891830314
2891831313
3891831303
4891832302
5891833302
6891833292
7891834292
88101834281
98101935271
109101935261
119112035251
1210112035231
1310112135221
1411112235211
1512122234190
1613122334180
1714122433160
1814132533150
1915142632130
2017142631120
2118152730100
221915272990
232116282880
242217282770
252317282560
262418282450
272619282350
282719282240
292820272140
302921272030

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
265calm
275calm
285calm
295calm
305calm

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 5:27 AM to 5:52 AM, and sunset from 6:17 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:276:17
212.85:286:15
312.85:296:14
412.75:296:12
512.75:306:11
612.65:316:09
712.65:326:08
812.65:336:06
912.55:346:05
1012.55:346:03
1112.45:356:01
1212.45:366:00
1312.45:375:58
1412.35:385:57
1512.35:395:55
1612.25:405:53
1712.25:405:52
1812.25:415:50
1912.15:425:49
2012.15:435:47
2112.05:445:46
2212.05:455:44
2311.95:455:42
2411.95:465:41
2511.95:475:39
2611.85:485:38
2711.85:495:36
2811.75:505:35
2911.75:515:33
3011.75:525:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.86 kWh/m².

For context, solar energy here swings from a low near 2.26 kWh/m² to a high of 6.53 kWh/m² in June across the year — September's 4.86 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.6Bright
224.6Bright
234.6Bright
244.5Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.4Bright
304.3Bright
Planning a trip in September

Is September a good time to visit Āq Qalā?

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

5.2
Sightseeing
6th-best month of the year
7.8
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Āq Qalā for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Āq Qalā in September

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

In September, Āq Qalā sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Āq Qalā in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 53 km away) is warmest in August at about 29°C and coldest in February near 11°C.

It's comfortable for a long swim from May 13 to Nov 6 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar12Bracing
Apr16Cool
May21Refreshing
Jun25Warm
Jul28Warm
Aug29Tropical
Sep27Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Āq Qalā 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 Āq Qalā peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 10Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May7Very high
Jun8Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Āq Qalā 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 Āq Qalā is worst in September — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1827 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar22Moderate
Apr25Moderate
May22Moderate
Jun20Moderate
Jul21Moderate
Aug22Moderate
Sep27Moderate
Oct24Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Āq Qalā?

Āq Qalā sits at 37.0°N, 54.5°E, -13 m above sea level, in Iran. The nearest listed city is Gorgān, 19 km away.

Topography around Āq Qalā

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

Within 3 km, the terrain around Āq Qalā has only modest variations in elevation — a maximum elevation change of 12 m around an average of -15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 104 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,905 m.

The land around Āq Qalā is covered by cropland (63%) and artificial surfaces (24%) within 3 km, cropland (89%) within 16 km, and bare terrain (28%) and cropland (24%) within 80 km.

3 km
12 m
16 km
104 m
80 km
3,905 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Gorgān 19 km · Sīmīn Shahr 20 km · Fāẕelābād 29 km · Gomīshān 34 km · Bandar-e Torkaman 36 km · 'Alī Ābād-e Katūl 38 km · Kord Kūy 39 km · Bandar-e Gaz 52 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 Āq Qalā (37.0139°, 54.455°, elevation -13 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).