Nizhneudinsk weather in September

In September, Nizhneudinsk sees average daytime highs of 14°C and overnight lows near 3°C, with 69 mm of precipitation across 12.8 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 10°C by the end. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Nizhneudinsk's 4th-clearest and 6th-windiest month. For the whole year in context, see Nizhneudinsk's year-round climate.

Daytime high
14°
5th warmest
Overnight low
9th coldest
Precipitation
69 mm
12.8 wet days
Daylight
12 h 24 min
7:05 AM – 7:31 PM
Cloud cover
69%
4th clearest
Wind
9 km/h
6th windiest
Solar energy
3.08 kWh/m²
Travel score
3.6
out of 10

Nizhneudinsk is human settlement in Nizhneudinsky District, Irkutsk Oblast, Russia.

Density
516/km²
people per km²
Founded
1648

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 17°C in the first days to 10°C by the end.

A typical September day in Nizhneudinsk reaches about 14°C in the afternoon and slips back to 3°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 21°C. Set against its neighbours, September runs about 7°C cooler than August and about 8°C warmer than October.

10°20°151015202530
Avg high (°C)Avg low (°C)
1177
2177
3176
4176
5166
6166
7165
8165
9155
10154
11154
12154
13144
14143
15143
16143
17133
18132
19132
20122
21122
22122
23121
24111
25111
26111
27110
28100
29100
30100

How September really feels in Nizhneudinsk

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 13 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
13
wind chill below the day's low

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

Nizhneudinsk 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-14° / -24°935.27.60.0
Feb-8° / -21°1045.99.30.0
Mar-0° / -13°185.66.911.40.0
Apr / -3°329.35.613.81.3
May15° / 5813.12.215.84.3
Jun21° / 8713.80.1175.8
Jul23° / 12°8913.7016.56.1
Aug20° / 10°9614.4014.75.6
Sep14° / 6912.81.112.53.6
Oct / -4°359.25.410.20.6
Nov-5° / -14°2279.28.10.0
Dec-12° / -21°175.88.770.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23367
33367
43268
53268
63268
73268
83367
93268
103268
113367
123268
133367
143268
153268
163169
173268
183169
193070
203070
213070
223070
232971
242971
252971
262872
272872
282971
292872
302872

Chance of precipitation in September

Any precipitationSnow

Nizhneudinsk gets around 69 mm of rain and snow over 12.8 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 42% and peaks near 45% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1450
2450
3450
4451
5451
6451
7441
8441
9442
10432
11432
12432
13422
14422
15423
16413
17413
18413
19414
20414
21415
22415
23406
24406
25407
26408
27398
28399
293810
303710

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1973
2973
3982
4982
5982
6991
7991
8991
9991
10991
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 36 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 132 minutes over September. Sunrise moves from 6:36 AM to 7:32 AM, and sunset from 8:11 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:368:11
213.56:388:08
313.46:408:06
413.46:428:03
513.36:448:01
613.26:467:58
713.16:487:55
813.06:507:53
913.06:527:50
1012.96:537:47
1112.86:557:45
1212.76:577:42
1312.76:597:39
1412.67:017:37
1512.57:037:34
1612.47:057:31
1712.47:077:29
1812.37:097:26
1912.27:117:23
2012.17:137:21
2112.17:157:18
2212.07:177:15
2311.97:187:13
2411.87:207:10
2511.87:227:07
2611.77:247:05
2711.67:267:02
2811.57:286:59
2911.47:306:57
3011.47:326:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.08 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.96 kWh/m² in June across the year — September's 3.08 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.5Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Hazard calendar for Nizhneudinsk

In seasonPeak

In September, Nizhneudinsk sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Nizhneudinsk's rainy season runs May–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Nizhneudinsk?

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

3.6
Sightseeing
5th-best month of the year
0.3
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Nizhneudinsk.

What to pack for Nizhneudinsk in September

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

In September, Nizhneudinsk sees daytime highs around 14°C and nights near 3°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

UV index in Nizhneudinsk in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nizhneudinsk peaks around July 13 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 6Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr4Moderate
May5High
Jun6High
Jul6High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Nizhneudinsk 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 Nizhneudinsk is worst in April — around 22 µg/m³ PM2.5 (moderate), about 15.6× the cleanest month (December, 1 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1820 µg/m³Dec 162 µg/m³
PM2.5 (µg/m³)Level
Jan3Good
Feb5Good
Mar6Good
Apr22Moderate
May12Good
Jun11Good
Jul13Moderate
Aug10Good
Sep6Good
Oct5Good
Nov3Good
Dec1Good
Location & terrain

Where is Nizhneudinsk?

Nizhneudinsk sits at 54.9°N, 99.0°E, 412 m above sea level, in Russia. The nearest listed city is Tulun, 106 km away.

Topography around Nizhneudinsk

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

Within 3 km, the terrain around Nizhneudinsk has only modest variations in elevation — a maximum elevation change of 122 m around an average of 421 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 356 m; within 80 km, large variations in elevation — a maximum elevation change of 1,105 m.

The land around Nizhneudinsk is covered by trees (44%), artificial surfaces (26%) and grassland (23%) within 3 km, trees (70%) and grassland (22%) within 16 km, and trees (92%) within 80 km.

3 km
122 m
16 km
356 m
80 km
1,105 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Tulun 106 km · Tayshet 132 km · Chunskiy 137 km · Vikhorevka 191 km · Bratsk 212 km · Sayansk 221 km · Zima 224 km · Ilanskiy 238 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 Nizhneudinsk (54.9072°, 99.034°, elevation 412 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).