Angarsk weather in September

In September, Angarsk sees average daytime highs of 16°C and overnight lows near 5°C, with 51 mm of precipitation across 9.7 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 12°C by the end. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Angarsk's 4th-clearest and 4th-windiest month. For the whole year in context, see Angarsk's year-round climate.

Daytime high
16°
5th warmest
Overnight low
9th coldest
Precipitation
51 mm
9.7 wet days
Daylight
12 h 24 min
6:47 AM – 7:11 PM
Cloud cover
60%
4th clearest
Wind
10 km/h
4th windiest
Solar energy
3.49 kWh/m²
Travel score
4.9
out of 10

Angarsk is city in Irkutsk Oblast, Russia.

Density
827/km²
people per km²
Founded
1948

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 19°C in the first days to 12°C by the end.

A typical September day in Angarsk reaches about 16°C in the afternoon and slips back to 5°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 22°C. Set against its neighbours, September runs about 7°C cooler than August and about 9°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1209
2198
3198
4198
5198
6187
7187
8187
9186
10176
11176
12176
13175
14165
15165
16165
17164
18154
19154
20154
21153
22143
23143
24142
25132
26132
27132
28131
29121
30121

How September really feels in Angarsk

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 8 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
8
wind chill below the day's low

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Angarsk weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-15° / -25°41.32.680.0
Feb-9° / -22°41.32.89.50.0
Mar / -13°82.93.711.50.0
Apr10° / -3°195.52.513.62.6
May18° / 348.20.615.55.9
Jun24° / 11°599.8016.56.8
Jul25° / 14°8211.8016.16.4
Aug23° / 12°8511014.56.5
Sep16° / 519.70.312.44.9
Oct / -4°185.12.810.31.2
Nov-5° / -13°103.54.68.50.0
Dec-13° / -22°83.14.47.50.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24456
34456
44456
54456
64456
74456
84456
94555
104456
114456
124456
134456
144456
154555
164555
174555
184555
194555
204555
214555
224654
234654
244654
254654
264654
274654
284654
294654
304654

Chance of precipitation in September

Any precipitationSnow

Angarsk gets around 51 mm of rain and snow over 9.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 35% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1350
2350
3350
4350
5340
6340
7340
8340
9340
10341
11341
12331
13331
14321
15321
16321
17311
18311
19311
20301
21302
22292
23292
24282
25272
26262
27262
28252
29253
30243

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
187121
289110
39190
49280
59370
69460
79550
89640
99730
109820
119820
129910
139910
149910
1510000
1610000
1710000
1810000
1910000
2010000
2110000
2210000
2310000
2410000
2510000
2610000
2710000
2810000
2910000
3010000

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
19calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over September. Sunrise moves from 6:21 AM to 7:11 AM, and sunset from 7:47 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:217:47
213.46:227:45
313.36:247:43
413.26:267:40
513.26:287:38
613.16:297:35
713.06:317:33
813.06:337:30
912.96:347:28
1012.86:367:26
1112.86:387:23
1212.76:407:21
1312.66:417:18
1412.56:437:16
1512.56:457:13
1612.46:477:11
1712.36:487:08
1812.36:507:06
1912.26:527:03
2012.16:537:01
2112.16:556:58
2212.06:576:56
2311.96:596:53
2411.87:006:51
2511.87:026:49
2611.77:046:46
2711.67:066:44
2811.67:076:41
2911.57:096:39
3011.47:116:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.49 kWh/m².

For context, solar energy here swings from a low near 0.9 kWh/m² to a high of 6.12 kWh/m² in June across the year — September's 3.49 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.4Moderate
193.4Moderate
203.3Moderate
213.3Moderate
223.2Moderate
233.2Moderate
243.2Moderate
253.1Moderate
263.1Moderate
273.0Moderate
283.0Moderate
293.0Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Angarsk?

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

4.9
Sightseeing
5th-best month of the year
1.0
Beach & pool
5th-best month of the year

September is a reasonable time to visit Angarsk for sightseeing.

What to pack for Angarsk in September

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

In September, Angarsk sees daytime highs around 16°C and nights near 5°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Angarsk in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Angarsk peaks around July 12 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr5Moderate
May5High
Jun6High
Jul7High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Angarsk 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 Angarsk is worst in May — around 22 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMay 1621 µg/m³Nov 1510 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar13Moderate
Apr17Moderate
May22Moderate
Jun16Moderate
Jul18Moderate
Aug18Moderate
Sep11Good
Oct12Good
Nov10Good
Dec12Good
Location & terrain

Where is Angarsk?

Angarsk sits at 52.6°N, 103.9°E, 430 m above sea level, in Russia. The nearest listed city is Usol’ye-Sibirskoye, 28 km away.

Topography around Angarsk

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

Within 3 km, the terrain around Angarsk has only modest variations in elevation — a maximum elevation change of 43 m around an average of 427 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, large variations in elevation — a maximum elevation change of 957 m.

The land around Angarsk is covered by trees (41%) and artificial surfaces (39%) within 3 km, trees (50%) and grassland (32%) within 16 km, and trees (68%) within 80 km.

3 km
43 m
16 km
195 m
80 km
957 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Usol’ye-Sibirskoye 28 km · Irkutsk 39 km · Shelekhov 40 km · Markova 44 km · Cheremkhovo 86 km · Slyudyanka 101 km · Baykal’sk 117 km · Zima 196 km

Russia travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$17,547
2025
Happiness
5.8 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
6.8
per 100k, 2021
Road deaths
12
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 521
Religion
other Christian 2%

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 Angarsk (52.5597°, 103.9141°, elevation 430 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).