Ardabīl weather in September

In September, Ardabīl sees average daytime highs of 23°C and overnight lows near 10°C, with 24 mm of rain across 6.2 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 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 57% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ardabīl's 3rd-clearest and 11th-windiest month. For the whole year in context, see Ardabīl's year-round climate.

Daytime high
23°
4th warmest
Overnight low
10°
9th coldest
Rainfall
24 mm
6.2 wet days
Daylight
12 h 12 min
6:04 AM – 6:18 PM
Cloud cover
40%
3rd clearest
Wind
6 km/h
11th windiest
Solar energy
4.72 kWh/m²
Travel score
7.7
out of 10

Ardabīl is city in Ardabil Province, Iran.

Density
22,807/km²
people per km²

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 Ardabīl reaches about 23°C in the afternoon and slips back to 10°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 28°C. Set against its neighbours, September runs about 3°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12512
22512
32512
42512
52512
62412
72412
82411
92411
102411
112411
122411
132311
142311
152311
162310
172310
182310
192310
202210
212210
222210
23229
24229
25229
26219
27219
28219
29218
30208

How September really feels in Ardabīl

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.

Ardabīl 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
Jan / -6°367.37.19.60.0
Feb / -5°458.3810.50.2
Mar10° / -1°5811.47.411.72.0
Apr15° / 6512.82.6134.1
May19° / 6013.30.2145.8
Jun24° / 11°236.1014.67.8
Jul26° / 14°123.4014.48.3
Aug26° / 13°102.7013.58.3
Sep23° / 10°246.2012.37.7
Oct17° / 4881.1116.0
Nov10° / 538.24.49.92.4
Dec / -4°3676.39.40.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37624
47525
57525
67426
77426
87426
97327
107228
117228
127228
137228
147129
157129
167129
177228
187228
197228
207129
217129
227129
237129
247129
257030
267030
276931
286931
296832
306832

Chance of precipitation in September

Any precipitation

Ardabīl gets around 24 mm of rain over 6.2 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 20% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
114
215
315
416
516
617
718
818
919
1019
1119
1220
1320
1420
1520
1620
1720
1820
1921
2021
2121
2222
2322
2423
2523
2624
2724
2825
2925
3025

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
174242
275232
376222
477212
578202
679192
781181
882171
983161
1085141
1186131
1288120
1389110
1490100
159190
169280
179370
189370
199460
209550
219640
229640
239730
249730
259820
269820
279820
289910
299910
309910

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
67calm
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 54 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 72 minutes over September. Sunrise moves from 5:50 AM to 6:17 AM, and sunset from 6:43 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:506:43
212.85:516:41
312.85:526:39
412.75:536:38
512.75:546:36
612.75:556:35
712.65:566:33
812.65:576:32
912.55:586:30
1012.55:586:28
1112.55:596:27
1212.46:006:25
1312.46:016:23
1412.36:026:22
1512.36:036:20
1612.26:046:18
1712.26:056:17
1812.26:066:15
1912.16:076:14
2012.16:076:12
2112.06:086:10
2212.06:096:09
2311.96:106:07
2411.96:116:05
2511.96:126:04
2611.86:136:02
2711.86:146:00
2811.76:155:59
2911.76:165:57
3011.76:175:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.72 kWh/m².

For context, solar energy here swings from a low near 2.4 kWh/m² to a high of 6.77 kWh/m² in June across the year — September's 4.72 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
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.8Bright
134.8Bright
144.8Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.1Bright
Planning a trip in September

Is September a good time to visit Ardabīl?

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

7.7
Sightseeing
4th-best month of the year
5.9
Beach & pool
4th-best month of the year

September is one of the better times to visit Ardabīl for general sightseeing.

What to pack for Ardabīl in September

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

In September, Ardabīl sees daytime highs around 23°C and nights near 10°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Ardabīl in September

The nearest coast averages about 26°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 28°C and coldest in February near 9°C.

It's comfortable for a long swim from May 25 to Oct 31 — about 5.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar10Bracing
Apr13Bracing
May19Cool
Jun24Refreshing
Jul27Warm
Aug28Warm
Sep26Warm
Oct22Refreshing
Nov18Cool
Dec14Bracing

UV index in Ardabīl 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 Ardabīl peaks around July 19 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 19UV 10Dec 18UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Extreme
Aug10Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Ardabīl 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 Ardabīl is worst in April — around 27 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2027 µg/m³Nov 2216 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar24Moderate
Apr27Moderate
May26Moderate
Jun19Moderate
Jul16Moderate
Aug18Moderate
Sep18Moderate
Oct17Moderate
Nov16Moderate
Dec17Moderate
Location & terrain

Where is Ardabīl?

Ardabīl sits at 38.2°N, 48.3°E, 1,353 m above sea level, in Iran. The nearest listed city is Āstārā, 54 km away.

Topography around Ardabīl

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

Within 3 km, the terrain around Ardabīl has only modest variations in elevation — a maximum elevation change of 46 m around an average of 1,350 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 524 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,810 m.

The land around Ardabīl is covered by artificial surfaces (90%) within 3 km, cropland (80%) within 16 km, and grassland (47%) and cropland (23%) within 80 km.

3 km
46 m
16 km
524 m
80 km
4,810 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Āstārā 54 km · Astara 56 km · Meshgīn Shahr 56 km · Lerik 59 km · Khalkhāl 73 km · Hashtpar 74 km · Lankaran 74 km · Sarāb 75 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 Ardabīl (38.2498°, 48.2933°, elevation 1,353 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).