Bandar-e Gaz weather in September

In September, Bandar-e Gaz sees average daytime highs of 25°C and overnight lows near 19°C, with 93 mm of rain across 10.8 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 50% 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 Bandar-e Gaz's 2nd-clearest and 7th-windiest month. For the whole year in context, see Bandar-e Gaz's year-round climate.

Daytime high
25°
4th warmest
Overnight low
19°
9th coldest
Rainfall
93 mm
10.8 wet days
Daylight
12 h 12 min
5:42 AM – 5:55 PM
Cloud cover
40%
2nd clearest
Wind
6 km/h
7th windiest
Solar energy
4.77 kWh/m²
Travel score
7.0
out of 10

Bandar-e Gaz 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 26°C in the first days to 23°C by the end.

A typical September day in Bandar-e Gaz reaches about 25°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52621
62620
72620
82620
92620
102520
112520
122520
132520
142519
152519
162519
172519
182419
192419
202418
212418
222418
232418
242418
252318
262317
272317
282317
292317
302317

Bandar-e Gaz weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 659.14.39.82.0
Feb10° / 7310.2510.62.1
Mar13° / 9313.2311.73.4
Apr17° / 11°9513.50.412.95.0
May21° / 15°8512.6013.96.3
Jun25° / 19°548.5014.57.3
Jul27° / 22°488.7014.37.0
Aug27° / 22°478.7013.47.1
Sep25° / 19°9310.8012.27.0
Oct21° / 14°969.70116.8
Nov15° / 929.90.9104.6
Dec11° / 588.829.52.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17030
27030
36931
46931
56931
66832
76832
86733
96733
106733
116634
126634
136733
146733
156733
166733
176832
186733
196832
206832
216931
226832
236931
246931
256931
266931
276931
286931
296931
306832

Chance of precipitation in September

Any precipitation

Bandar-e Gaz gets around 93 mm of rain over 10.8 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
129
230
330
431
532
632
733
834
935
1036
1136
1237
1338
1438
1538
1638
1738
1838
1938
2038
2138
2237
2337
2437
2537
2637
2736
2836
2936
3036

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
129214622
229224621
3210224719
4210224718
5210234817
6211234815
7211244914
8212254912
9312264911
10313264810
1131427478
1241428467
1341529456
1441630446
1551731425
1651932404
1762033384
1862134363
1972335333
2082435302
2192536282
22102736252
23112836232
24122936211
25143036191
26153136171
27173235151
28193334131
29203334120
30223433100

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
57calm
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 5:29 AM to 5:53 AM, and sunset from 6:19 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:296:19
212.85:306:17
312.75:316:16
412.75:326:14
512.75:336:13
612.65:336:11
712.65:346:10
812.55:356:08
912.55:366:06
1012.55:376:05
1112.45:376:03
1212.45:386:02
1312.45:396:00
1412.35:405:59
1512.35:415:57
1612.25:425:55
1712.25:425:54
1812.25:435:52
1912.15:445:51
2012.15:455:49
2112.05:465:48
2212.05:475:46
2311.95:475:44
2411.95:485:43
2511.95:495:41
2611.85:505:40
2711.85:515:38
2811.75:525:37
2911.75:535:35
3011.75:535:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.77 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 6.51 kWh/m² in June across the year — September's 4.77 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.8Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.4Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Is September a good time to visit Bandar-e Gaz?

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

7.0
Sightseeing
3rd-best month of the year
6.1
Beach & pool
4th-best month of the year

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

What to pack for Bandar-e Gaz in September

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

In September, Bandar-e Gaz sees daytime highs around 25°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Bandar-e Gaz 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 31 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 16 to Nov 10 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar12Bracing
Apr15Cool
May20Refreshing
Jun25Warm
Jul27Warm
Aug29Tropical
Sep27Warm
Oct24Refreshing
Nov19Cool
Dec15Cool

UV index in Bandar-e Gaz 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 Bandar-e Gaz peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 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 highHighModerateJul 18UV 10Jan 12UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun8Very high
Jul10Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Bandar-e Gaz 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 Bandar-e Gaz is worst in September — around 29 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 2029 µg/m³Jul 1519 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb23Moderate
Mar25Moderate
Apr25Moderate
May22Moderate
Jun21Moderate
Jul19Moderate
Aug22Moderate
Sep29Moderate
Oct27Moderate
Nov25Moderate
Dec23Moderate
Location & terrain

Where is Bandar-e Gaz?

Bandar-e Gaz sits at 36.8°N, 53.9°E, -19 m above sea level, in Iran. The nearest listed city is Galūgāh, 13 km away.

Topography around Bandar-e Gaz

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

Within 3 km, the terrain around Bandar-e Gaz has only modest variations in elevation — a maximum elevation change of 37 m around an average of -18 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,192 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,905 m.

The land around Bandar-e Gaz is covered by cropland (41%) within 3 km, trees (32%), water (31%) and cropland (24%) within 16 km, and water (23%) within 80 km.

3 km
37 m
16 km
2,192 m
80 km
3,905 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Galūgāh 13 km · Kord Kūy 15 km · Bandar-e Torkaman 18 km · Gomīshān 35 km · Behshahr 36 km · Sīmīn Shahr 37 km · Gorgān 45 km · Āq Qalā 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 Bandar-e Gaz (36.7741°, 53.948°, elevation -19 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).