Severobaykal’sk weather in September

In September, Severobaykal’sk sees average daytime highs of 10°C and overnight lows near 2°C, with 81 mm of precipitation across 13.3 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 6°C by the end. The sky is clear or mostly clear about 19% 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 Severobaykal’sk's 7th-clearest and 4th-windiest month. For the whole year in context, see Severobaykal’sk's year-round climate.

Daytime high
10°
4th warmest
Overnight low
9th coldest
Precipitation
81 mm
13.3 wet days
Daylight
12 h 30 min
6:23 AM – 6:51 PM
Cloud cover
68%
7th clearest
Wind
7 km/h
4th windiest
Solar energy
3.13 kWh/m²
Travel score
2.0
out of 10

Severobaykal’sk is town in Russia.

Density
250/km²
people per km²
Founded
1974

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 14°C in the first days to 6°C by the end.

A typical September day in Severobaykal’sk reaches about 10°C in the afternoon and slips back to 2°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 15°C. Set against its neighbours, September runs about 8°C cooler than August and about 9°C warmer than October.

-10°10°20°151015202530
Avg high (°C)Avg low (°C)
1146
2146
3146
4135
5135
6135
7125
8124
9124
10124
11114
12113
13113
14103
15103
16102
17102
1892
1992
2091
2181
2281
2381
2480
2570
2670
277-1
286-1
296-1
306-1

How September really feels in Severobaykal’sk

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.

Severobaykal’sk weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-21° / -27°236.48.77.40.0
Feb-17° / -25°205.97.99.20.0
Mar-8° / -19°328.610.411.40.0
Apr / -9°5010.811.113.80.0
May / -1°6412.96.915.91.5
Jun17° / 6812.30.417.15.0
Jul20° / 10°8313.9016.65.7
Aug18° / 10013.60.114.85.2
Sep10° / 8113.3312.52.0
Oct / -7°5810.910.310.10.0
Nov-11° / -17°409.111.380.0
Dec-19° / -25°277.29.76.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
33862
43664
53664
63664
73664
83565
93565
103565
113565
123466
133466
143565
153565
163565
173565
183565
193565
203664
213664
223565
233565
243565
253664
263763
273664
283664
293664
303565

Chance of precipitation in September

Any precipitationSnow

Severobaykal’sk gets around 81 mm of rain and snow over 13.3 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 44% and peaks near 49% on the wettest days, and about 3 days bring snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1492
2492
3493
4493
5494
6494
7495
8485
9486
10486
11477
12478
13468
14469
154510
164511
174411
184312
194313
204214
214214
224115
234116
244016
253917
263918
273919
283820
293820
303821

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
51000
61000
71000
81000
91000
101000
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 7 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
16calm
26calm
36calm
46calm
56calm
66calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 5:54 AM to 6:51 AM, and sunset from 7:31 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:547:31
213.55:567:28
313.55:587:26
413.46:007:23
513.36:027:20
613.26:047:18
713.26:067:15
813.16:087:12
913.06:107:10
1012.96:127:07
1112.86:147:04
1212.86:167:01
1312.76:186:59
1412.66:196:56
1512.56:216:53
1612.56:236:51
1712.46:256:48
1812.36:276:45
1912.26:296:42
2012.16:316:40
2112.16:336:37
2212.06:356:34
2311.96:376:31
2411.86:396:29
2511.76:416:26
2611.76:436:23
2711.66:456:21
2811.56:476:18
2911.46:496:15
3011.46:516:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.13 kWh/m².

For context, solar energy here swings from a low near 0.58 kWh/m² to a high of 6.1 kWh/m² in June across the year — September's 3.13 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.5Moderate
Planning a trip in September

Hazard calendar for Severobaykal’sk

In seasonPeak

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

Severobaykal’sk's rainy season runs April–October, 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 Severobaykal’sk?

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

2.0
Sightseeing
4th-best month of the year
0.0
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Severobaykal’sk.

What to pack for Severobaykal’sk in September

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

In September, Severobaykal’sk sees daytime highs around 10°C and nights near 2°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

UV index in Severobaykal’sk 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 Severobaykal’sk peaks around July 15 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJul 15UV 6Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr4Moderate
May5High
Jun5Moderate
Jul6High
Aug4Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Severobaykal’sk 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 Severobaykal’sk is worst in August — around 63 µg/m³ PM2.5 (unhealthy), about 56.8× the cleanest month (December, 1 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorUnhealthyGoodAug 1260 µg/m³Dec 171 µg/m³
PM2.5 (µg/m³)Level
Jan2Good
Feb2Good
Mar4Good
Apr6Good
May7Good
Jun23Moderate
Jul52Poor
Aug63Unhealthy
Sep14Moderate
Oct4Good
Nov2Good
Dec1Good
Location & terrain

Where is Severobaykal’sk?

Severobaykal’sk sits at 55.6°N, 109.3°E, 537 m above sea level, in Russia. The nearest listed city is Ust’-Kut, 254 km away.

Topography around Severobaykal’sk

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

Within 3 km, the terrain around Severobaykal’sk has significant variations in elevation — a maximum elevation change of 431 m around an average of 529 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 748 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,113 m.

The land around Severobaykal’sk is covered by trees (64%) within 3 km, trees (53%) and water (45%) within 16 km, and trees (51%) and moss and lichen (21%) within 80 km.

3 km
431 m
16 km
748 m
80 km
2,113 m
treesshrubsgrasslandartificial surfacesbare terrainwatermoss and lichen
September weather nearby: Ust’-Kut 254 km · Zheleznogorsk-Ilimskiy 339 km · Bodaybo 386 km · Ulan-Ude 439 km · Ust’-Ilimsk 483 km · Bratsk 484 km · Chita 484 km · Petrovsk-Zabaykal’skiy 486 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 Severobaykal’sk (55.6383°, 109.3271°, elevation 537 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).