Komsomolsk-on-Amur weather in September

In September, Komsomolsk-on-Amur sees average daytime highs of 18°C and overnight lows near 8°C, with 81 mm of precipitation across 11 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 14°C by the end. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Komsomolsk-on-Amur's 6th-clearest and 8th-windiest month. For the whole year in context, see Komsomolsk-on-Amur's year-round climate.

Daytime high
18°
4th warmest
Overnight low
9th coldest
Precipitation
81 mm
11 wet days
Daylight
12 h 24 min
6:35 AM – 6:58 PM
Cloud cover
60%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
3.46 kWh/m²
Travel score
5.3
out of 10

Komsomolsk-on-Amur is city in Komsomolsk-on-Amur Urban Okrug, Khabarovsk Krai, Russia.

Density
849/km²
people per km²
Founded
1932

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 21°C in the first days to 14°C by the end.

A typical September day in Komsomolsk-on-Amur reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 22°C. Set against its neighbours, September runs about 6°C cooler than August and about 10°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12112
22112
32112
42011
52011
62011
72011
82010
91910
101910
11199
12199
13189
14189
15188
16188
17178
18177
19177
20177
21167
22166
23166
24156
25155
26155
27155
28145
29144
30144

How September really feels in Komsomolsk-on-Amur

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.

Komsomolsk-on-Amur 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-17° / -26°143.24.88.30.0
Feb-12° / -22°112.63.69.70.0
Mar-3° / -13°265.76.211.50.0
Apr / -3°408.15.313.51.2
May16° / 8011.6215.24.8
Jun22° / 12°7010.7016.16.3
Jul25° / 16°10012015.86.3
Aug23° / 15°10913.5014.36.1
Sep18° / 81110.212.45.3
Oct / -1°548.93.210.41.5
Nov-5° / -13°296.46.58.70.0
Dec-16° / -24°214.55.77.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
34060
44060
54159
64159
74357
84357
94357
104357
114357
124456
134456
144555
154555
164555
174654
184654
194753
204654
214753
224753
234654
244753
254753
264753
274852
284852
294951
304951

Chance of precipitation in September

Any precipitationSnow

Komsomolsk-on-Amur gets around 81 mm of rain and snow over 11 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 37% and peaks near 41% 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 (%)
1410
2410
3410
4410
5410
6410
7400
8400
9390
10390
11380
12380
13380
14370
15370
16360
17360
18350
19351
20341
21341
22341
23341
24342
25342
26342
27343
28343
29343
30333

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14535174
24834153
35133133
45431123
55730112
6612892
7642781
8672571
9702361
10722251
11762040
12781840
13811630
14831520
15851320
16881110
17891010
1890910
1992710
2094600
2194600
2295500
2396400
2497300
2597300
2698200
2799100
2899100
2999100
3099100

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 6:11 AM to 6:57 AM, and sunset from 7:32 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:117:32
213.36:137:30
313.26:147:27
413.26:167:25
513.16:187:23
613.06:197:21
713.06:217:18
812.96:227:16
912.86:247:14
1012.86:267:11
1112.76:277:09
1212.66:297:07
1312.66:307:05
1412.56:327:02
1512.46:337:00
1612.46:356:58
1712.36:376:55
1812.26:386:53
1912.26:406:51
2012.16:416:48
2112.06:436:46
2212.06:456:44
2311.96:466:41
2411.96:486:39
2511.86:496:37
2611.76:516:34
2711.76:536:32
2811.66:546:30
2911.56:566:27
3011.56:576:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.46 kWh/m².

For context, solar energy here swings from a low near 1.15 kWh/m² to a high of 5.31 kWh/m² in June across the year — September's 3.46 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.7Moderate
73.7Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
303.0Moderate
Planning a trip in September

Hazard calendar for Komsomolsk-on-Amur

In seasonPeak

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

Komsomolsk-on-Amur's rainy season runs May–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 Komsomolsk-on-Amur?

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

5.3
Sightseeing
4th-best month of the year
1.7
Beach & pool
4th-best month of the year

September is a reasonable time to visit Komsomolsk-on-Amur for sightseeing.

What to pack for Komsomolsk-on-Amur in September

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

In September, Komsomolsk-on-Amur sees daytime highs around 18°C and nights near 8°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Komsomolsk-on-Amur 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 Komsomolsk-on-Amur peaks around August 15 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowAug 15UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May4Moderate
Jun6High
Jul5Moderate
Aug7High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Komsomolsk-on-Amur 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 Komsomolsk-on-Amur is worst in May — around 35 µg/m³ PM2.5 (moderate), about 6.4× the cleanest month (December, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodMay 1233 µg/m³Dec 236 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb9Good
Mar20Moderate
Apr28Moderate
May35Moderate
Jun10Good
Jul11Good
Aug8Good
Sep6Good
Oct10Good
Nov18Moderate
Dec5Good
Location & terrain

Where is Komsomolsk-on-Amur?

Komsomolsk-on-Amur sits at 50.6°N, 137.0°E, 36 m above sea level, in Russia. The nearest listed city is Amursk, 36 km away.

Topography around Komsomolsk-on-Amur

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Komsomolsk-on-Amur.

Within 3 km, the terrain around Komsomolsk-on-Amur has only modest variations in elevation — a maximum elevation change of 42 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 352 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,536 m.

The land around Komsomolsk-on-Amur is covered by artificial surfaces (51%) and trees (31%) within 3 km, trees (54%) within 16 km, and trees (74%) within 80 km.

3 km
42 m
16 km
352 m
80 km
1,536 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Amursk 36 km · Khabarovsk 270 km · Vanino 283 km · Sovetskaya Gavan’ 294 km · Birobidzhan 353 km · Vyazemskiy 373 km · Nikolayevsk-on-Amure 385 km · Poronaysk 460 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 Komsomolsk-on-Amur (50.5503°, 137.01°, elevation 36 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).