Shāl weather in September

In September, Shāl sees average daytime highs of 30°C and overnight lows near 14°C, with 2 mm of rain across 0.6 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 27°C by the end. The sky is clear or mostly clear about 93% 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 Shāl's 2nd-clearest and 4th-windiest month. For the whole year in context, see Shāl's year-round climate.

Daytime high
30°
4th warmest
Overnight low
14°
9th coldest
Rainfall
2 mm
0.6 wet days
Daylight
12 h 12 min
5:59 AM – 6:12 PM
Cloud cover
12%
2nd clearest
Wind
10 km/h
4th windiest
Solar energy
5.96 kWh/m²
Travel score
6.8
out of 10

Shāl is city in Qazvin 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 32°C in the first days to 27°C by the end.

A typical September day in Shāl reaches about 30°C in the afternoon and slips back to 14°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13316
23316
33216
43215
53215
63215
73215
83215
93115
103115
113114
123114
133114
143014
153014
163014
173013
183013
192913
202913
212913
222913
232912
242812
252812
262812
272812
282712
292711
302711

How September really feels in Shāl

Once humidity and wind are folded in, September averages 5 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
5
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.

Shāl weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°3374.89.80.5
Feb / -2°387.73.210.61.7
Mar14° / 488.62.111.74.5
Apr20° / 4790.512.96.6
May26° / 12°225.90.113.97.4
Jun32° / 16°51.3014.45.4
Jul34° / 18°20.7014.23.8
Aug34° / 17°20.3013.44.0
Sep30° / 14°20.6012.26.8
Oct23° / 203.80.111.18.2
Nov14° / 377110.14.5
Dec / -2°34739.61.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 93% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 5% of September, with mostly cloudy or overcast conditions the remaining 2%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20982
21982
22973
23973
24973
25964
26964
27955
28946
29946
30946

Chance of precipitation in September

Any precipitation

Shāl gets around 2 mm of rain over 0.6 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 2% and peaks near 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
142
152
162
172
182
192
202
212
222
232
242
253
263
273
283
294
304

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
18515
28713
38812
48911
59010
6919
7919
8928
9937
10937
11946
12946
13955
14955
15964
16964
17973
18973
19982
20982
21982
22991
23991
24991
25991
26991
271000
281000
291000
301000

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:47 AM to 6:10 AM, and sunset from 6:35 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:476:35
212.85:476:33
312.75:486:32
412.75:496:30
512.65:506:29
612.65:516:27
712.65:516:26
812.55:526:24
912.55:536:23
1012.55:546:21
1112.45:556:20
1212.45:556:18
1312.35:566:17
1412.35:576:15
1512.35:586:13
1612.25:596:12
1712.25:596:10
1812.16:006:09
1912.16:016:07
2012.16:026:06
2112.06:036:04
2212.06:036:03
2312.06:046:01
2411.96:056:00
2511.96:065:58
2611.86:075:57
2711.86:075:55
2811.86:085:54
2911.76:095:52
3011.76:105:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 7.81 kWh/m² in June across the year — September's 5.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.5Intense
36.5Intense
46.5Intense
56.4Intense
66.4Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.1Intense
136.1Intense
146.0Intense
156.0Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.7Bright
225.7Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Shāl?

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

6.8
Sightseeing
3rd-best month of the year
8.9
Beach & pool
1st-best month of the year

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

What to pack for Shāl in September

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

In September, Shāl sees daytime highs around 30°C and nights near 14°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Shāl in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shāl peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 18UV 11Jan 12UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul11Extreme
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Shāl 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 Shāl is worst in April — around 39 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1638 µg/m³Aug 1226 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb31Moderate
Mar36Poor
Apr39Poor
May36Poor
Jun27Moderate
Jul26Moderate
Aug26Moderate
Sep28Moderate
Oct30Moderate
Nov30Moderate
Dec31Moderate
Location & terrain

Where is Shāl?

Shāl sits at 35.9°N, 49.8°E, 1,273 m above sea level, in Iran. The nearest listed city is Tākestān, 20 km away.

Topography around Shāl

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

Within 3 km, the terrain around Shāl has only modest variations in elevation — a maximum elevation change of 35 m around an average of 1,273 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 372 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,614 m.

The land around Shāl is covered by cropland (85%) within 3 km, cropland (90%) within 16 km, and grassland (48%) and cropland (40%) within 80 km.

3 km
35 m
16 km
372 m
80 km
2,614 m
shrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Tākestān 20 km · Eqbālīyeh 40 km · Alvand 42 km · Maḩmūdābād Nemūneh 45 km · Qazvin 46 km · Bīdestān 49 km · Sharīfābād 49 km · Moḩammadīyeh 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 Shāl (35.8981°, 49.7691°, elevation 1,273 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).