Gonbad-e Kāvūs weather in September

In September, Gonbad-e Kāvūs sees average daytime highs of 31°C and overnight lows near 19°C, with 36 mm of rain across 4.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-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 78% 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 Gonbad-e Kāvūs's 1st-clearest and 9th-windiest month. For the whole year in context, see Gonbad-e Kāvūs's year-round climate.

Daytime high
31°
4th warmest
Overnight low
19°
9th coldest
Rainfall
36 mm
4.9 wet days
Daylight
12 h 12 min
5:37 AM – 5:51 PM
Cloud cover
20%
1st clearest
Wind
6 km/h
9th windiest
Solar energy
5.09 kWh/m²
Travel score
5.3
out of 10

Gonbad-e Kāvūs 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 Gonbad-e Kāvūs reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°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)
13422
23422
33421
43321
53321
63321
73321
83321
93321
103220
113220
123220
133220
143220
153220
163119
173119
183119
193119
203119
213019
223018
233018
243018
253018
262917
272917
282917
292917
302917

How September really feels in Gonbad-e Kāvūs

Once humidity and wind are folded in, September averages 12 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
12
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.

Gonbad-e Kāvūs weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan13° / 526.81.59.73.9
Feb14° / 6682.210.64.1
Mar17° / 789.50.611.75.6
Apr22° / 11°638.4012.97.0
May28° / 16°345.60146.9
Jun33° / 21°274.2014.54.5
Jul35° / 23°336.8014.33.1
Aug35° / 23°335.6013.43.1
Sep31° / 19°364.9012.35.3
Oct26° / 14°354.50118.1
Nov19° / 496.30.3106.8
Dec14° / 365.90.59.54.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 78% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% 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 (%)
18911
28911
38911
48911
58911
68812
78812
88812
98812
108812
118812
128812
138812
148812
158812
168812
178713
188614
198614
208614
218614
228614
238614
248614
258515
268515
278416
288317
298317
308317

Chance of precipitation in September

Any precipitation

Gonbad-e Kāvūs gets around 36 mm of rain over 4.9 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 16% and peaks near 17% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
216
316
416
516
616
716
816
916
1015
1115
1215
1315
1415
1515
1615
1715
1815
1916
2016
2116
2216
2316
2416
2517
2617
2717
2817
2917
3017

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1182222289
2182223299
3182223298
4182224297
5192124297
6192125296
7192125296
8202125286
9202126285
10212126275
11222126265
12232127255
13232227234
14242227224
15262228214
16272228194
17282328183
18302328173
19312327153
20332427142
21352427122
22362426112
23382526101
2440252591
2541252491
2643252480
2745262370
2846262260
2948262160
3049262050

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 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
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:24 AM to 5:49 AM, and sunset from 6:14 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:246:14
212.85:256:13
312.85:266:11
412.75:266:10
512.75:276:08
612.65:286:07
712.65:296:05
812.65:306:03
912.55:316:02
1012.55:326:00
1112.45:325:59
1212.45:335:57
1312.45:345:55
1412.35:355:54
1512.35:365:52
1612.25:375:51
1712.25:375:49
1812.25:385:48
1912.15:395:46
2012.15:405:44
2112.05:415:43
2212.05:425:41
2311.95:435:40
2411.95:435:38
2511.95:445:36
2611.85:455:35
2711.85:465:33
2811.75:475:32
2911.75:485:30
3011.75:495:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.09 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 6.8 kWh/m² in June across the year — September's 5.09 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.5Bright
Planning a trip in September

Is September a good time to visit Gonbad-e Kāvūs?

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

5.3
Sightseeing
6th-best month of the year
7.9
Beach & pool
1st-best month of the year

September is a reasonable time to visit Gonbad-e Kāvūs for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Gonbad-e Kāvūs in September

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

In September, Gonbad-e Kāvūs sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

UV index in Gonbad-e Kāvūs 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 Gonbad-e Kāvūs peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highVery highHighModerateJul 17UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul10Extreme
Aug9Very high
Sep6High
Oct5Moderate
Nov3Moderate
Dec2Moderate

Air quality in Gonbad-e Kāvūs 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 Gonbad-e Kāvūs is worst in September — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1933 µg/m³Jan 1421 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb22Moderate
Mar25Moderate
Apr26Moderate
May25Moderate
Jun24Moderate
Jul26Moderate
Aug27Moderate
Sep34Moderate
Oct31Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Gonbad-e Kāvūs?

Gonbad-e Kāvūs sits at 37.3°N, 55.2°E, 38 m above sea level, in Iran. The nearest listed city is Āzādshahr, 18 km away.

Topography around Gonbad-e Kāvūs

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gonbad-e Kāvūs.

Within 3 km, the terrain around Gonbad-e Kāvūs has only modest variations in elevation — a maximum elevation change of 19 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 559 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,711 m.

The land around Gonbad-e Kāvūs is covered by artificial surfaces (66%) and cropland (26%) within 3 km, cropland (80%) within 16 km, and bare terrain (29%), grassland (26%) and cropland (26%) within 80 km.

3 km
19 m
16 km
559 m
80 km
3,711 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Āzādshahr 18 km · Mīnūdasht 18 km · Gālīkesh 24 km · Kalāleh 32 km · 'Alī Ābād-e Katūl 46 km · Fāẕelābād 54 km · Āq Qalā 68 km · Gorgān 79 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 Gonbad-e Kāvūs (37.25°, 55.1672°, elevation 38 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).