Gorgān weather in September

In September, Gorgān sees average daytime highs of 23°C and overnight lows near 15°C, with 109 mm of rain across 14.4 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 59% 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 Gorgān's 2nd-clearest and 9th-windiest month. For the whole year in context, see Gorgān's year-round climate.

Daytime high
23°
4th warmest
Overnight low
15°
9th coldest
Rainfall
109 mm
14.4 wet days
Daylight
12 h 12 min
5:40 AM – 5:53 PM
Cloud cover
36%
2nd clearest
Wind
4 km/h
9th windiest
Solar energy
4.98 kWh/m²
Travel score
6.6
out of 10

Gorgān 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 25°C in the first days to 21°C by the end.

A typical September day in Gorgān reaches about 23°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12517
22517
32517
42517
52517
62517
72516
82516
92416
102416
112416
122416
132416
142416
152415
162315
172315
182315
192315
202314
212314
222314
232214
242214
252214
262213
272213
282113
292113
302113

How September really feels in Gorgān

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.

Gorgān weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°609.789.80.2
Feb / -2°7711.89.410.60.4
Mar10° / 11616.39.711.71.9
Apr15° / 15420.22.912.93.5
May20° / 12°19522.50.213.94.7
Jun24° / 16°10916.7014.56.1
Jul26° / 18°5611.8014.36.7
Aug26° / 18°6512013.46.8
Sep23° / 15°10914.4012.36.6
Oct19° / 10°10013.80.3115.7
Nov12° / 8111.14.2103.2
Dec / -0°538.86.69.51.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27723
37723
47624
57624
67525
77525
87426
97426
107327
117327
127129
137129
147129
157129
167129
177129
187228
197129
207129
217228
227129
237228
247129
257228
267129
277228
287129
297228
307228

Chance of precipitation in September

Any precipitation

Gorgān gets around 109 mm of rain over 14.4 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 47% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
242
342
443
543
644
744
845
946
1046
1147
1247
1348
1448
1548
1649
1749
1849
1949
2049
2149
2250
2350
2449
2549
2649
2749
2849
2949
3049

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 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
126273710
22627389
32628388
42629387
52629396
62630396
72630385
82631384
92732384
102732374
112833363
122933353
133034333
143134322
153335302
163435282
173636272
183836251
194036221
204336201
214536181
224835161
235135140
245334130
255633110
265832100
27613180
28633070
29652960
30672850

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 5:51 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)
112.85:276:17
212.85:286:15
312.75:296:14
412.75:306:12
512.75:306:11
612.65:316:09
712.65:326:08
812.65:336:06
912.55:346:04
1012.55:356:03
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
3011.75:515:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.98 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 6.68 kWh/m² in June across the year — September's 4.98 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Gorgān?

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

6.6
Sightseeing
3rd-best month of the year
5.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Gorgān for sightseeing.

What to pack for Gorgān in September

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

In September, Gorgān sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

Sea temperature near Gorgān 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 59 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 Gorgān in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gorgān peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 17UV 10Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun8Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Gorgān 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 Gorgān 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 Gorgān?

Gorgān sits at 36.8°N, 54.4°E, 140 m above sea level, in Iran. The nearest listed city is Āq Qalā, 19 km away.

Topography around Gorgān

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

Within 3 km, the terrain around Gorgān has only modest variations in elevation — a maximum elevation change of 247 m around an average of 132 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,355 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,905 m.

The land around Gorgān is covered by artificial surfaces (68%) within 3 km, cropland (55%) and trees (33%) within 16 km, and bare terrain (30%) and cropland (24%) within 80 km.

3 km
247 m
16 km
2,355 m
80 km
3,905 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Āq Qalā 19 km · Sīmīn Shahr 27 km · Fāẕelābād 28 km · Kord Kūy 30 km · Bandar-e Torkaman 34 km · 'Alī Ābād-e Katūl 38 km · Gomīshān 41 km · Bandar-e Gaz 45 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 Gorgān (36.8427°, 54.4439°, elevation 140 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).