Yakutsk weather in September

In September, Yakutsk sees average daytime highs of 11°C and overnight lows near 2°C, with 38 mm of precipitation across 8.4 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 6°C by the end. The sky is clear or mostly clear about 22% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of September to 11 h 12 min by month's end. Set against the rest of the year, September is Yakutsk's 6th-clearest and 2nd-windiest month. For the whole year in context, see Yakutsk's year-round climate.

Daytime high
11°
5th warmest
Overnight low
9th coldest
Precipitation
38 mm
8.4 wet days
Daylight
12 h 36 min
5:58 AM – 6:33 PM
Cloud cover
69%
6th clearest
Wind
9 km/h
2nd windiest
Solar energy
2.57 kWh/m²
Travel score
2.6
out of 10

Yakutsk is city in eastern Russia, capital of the Republic of Sakha (Yakutia).

Density
1,931/km²
people per km²
Founded
1632

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 15°C in the first days to 6°C by the end.

A typical September day in Yakutsk reaches about 11°C in the afternoon and slips back to 2°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 16°C. Set against its neighbours, September runs about 10°C cooler than August and about 14°C warmer than October.

-10°10°20°151015202530
Avg high (°C)Avg low (°C)
1166
2166
3165
4155
5155
6144
7144
8144
9134
10133
11133
12123
13122
14112
15112
16112
17101
18101
19101
2091
2190
2280
2380
248-1
257-1
267-1
276-2
286-2
295-2
305-3

How September really feels in Yakutsk

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 18 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
18
wind chill below the day's low

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

Yakutsk weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-34° / -41°20.51.75.80.0
Feb-28° / -37°20.81.68.30.0
Mar-13° / -26°41.1211.30.0
Apr / -11°103.12.914.30.2
May13° / 2671.217.33.7
Jun22° / 10°336.8019.17.0
Jul25° / 13°457.8018.37.1
Aug21° / 10°447.8015.76.6
Sep11° / 388.40.812.62.6
Oct-4° / -10°165.15.99.60.0
Nov-23° / -29°82.846.70.0
Dec-34° / -40°20.61.44.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23763
33763
43664
53664
63565
73565
83565
93466
103367
113367
123367
133367
143268
153268
163268
173268
183070
193070
203070
212971
222971
232971
243070
252971
262872
272872
282872
292773
302773

Chance of precipitation in September

Any precipitationSnow

Yakutsk gets around 38 mm of rain and snow over 8.4 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 27% and peaks near 32% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
1300
2300
3310
4310
5310
6320
7320
8321
9311
10311
11311
12301
13301
14291
15282
16282
17272
18262
19263
20253
21244
22244
23235
24235
25226
26226
27217
28218
29209
302010

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 (%)
1973
2982
3982
4991
5991
6991
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 9 km/h in September.

Across September, daily wind ranges from about 9 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
19calm
29calm
39calm
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 14 h 06 min at the start of September to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 174 minutes over September. Sunrise moves from 5:18 AM to 6:35 AM, and sunset from 7:24 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:187:24
214.05:217:20
313.95:237:17
413.85:267:14
513.75:297:10
613.65:317:07
713.55:347:04
813.45:377:00
913.35:396:57
1013.25:426:53
1113.15:456:50
1213.05:476:47
1312.95:506:43
1412.85:536:40
1512.75:556:36
1612.65:586:33
1712.56:016:29
1812.46:036:26
1912.36:066:23
2012.26:096:19
2112.16:116:16
2212.06:146:12
2311.96:176:09
2411.86:196:06
2511.76:226:02
2611.66:255:59
2711.56:275:55
2811.46:305:52
2911.36:335:49
3011.26:355:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.57 kWh/m².

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 6.22 kWh/m² in June across the year — September's 2.57 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.1Moderate
53.1Moderate
63.0Moderate
73.0Moderate
82.9Moderate
92.9Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.5Moderate
182.5Moderate
192.4Moderate
202.4Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.2Moderate
252.2Moderate
262.1Moderate
272.1Moderate
282.0Moderate
292.0Dim
301.9Dim
Planning a trip in September

Is September a good time to visit Yakutsk?

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

2.6
Sightseeing
5th-best month of the year
0.1
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Yakutsk.

What to pack for Yakutsk in September

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

In September, Yakutsk sees daytime highs around 11°C and nights near 2°C. Pack a warm layer. Worth having: rain gear. About 8 days see rain.

a warm layerrain gear

UV index in Yakutsk in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yakutsk peaks around June 20 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 20UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr3Moderate
May3Moderate
Jun4Moderate
Jul4Moderate
Aug4Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low

Air quality in Yakutsk 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 Yakutsk is worst in August — around 78 µg/m³ PM2.5 (unhealthy), about 33.7× the cleanest month (December, 2 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyGoodAug 1275 µg/m³Dec 122 µg/m³
PM2.5 (µg/m³)Level
Jan3Good
Feb4Good
Mar7Good
Apr7Good
May10Good
Jun14Moderate
Jul61Unhealthy
Aug78Unhealthy
Sep23Moderate
Oct4Good
Nov3Good
Dec2Good
Location & terrain

Where is Yakutsk?

Yakutsk sits at 62.0°N, 129.7°E, 126 m above sea level, in Russia. The nearest listed city is Aldan, 448 km away.

NeryungriLenskMirnyTyndaZeyaUdachnyBodaybo

Topography around Yakutsk

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

Within 3 km, the terrain around Yakutsk has only modest variations in elevation — a maximum elevation change of 23 m around an average of 97 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 176 m; within 80 km, significant variations in elevation — a maximum elevation change of 250 m.

The land around Yakutsk is covered by artificial surfaces (59%) within 3 km, trees (46%) and grassland (24%) within 16 km, and trees (75%) within 80 km.

3 km
23 m
16 km
176 m
80 km
250 m
treesgrasslandartificial surfacesbare terrainwaterwetland
September weather nearby: Aldan 448 km · Neryungri 661 km · Lensk 799 km · Mirny 815 km · Tynda 817 km · Zeya 934 km · Udachny 965 km · Bodaybo 978 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 Yakutsk (62.0311°, 129.7229°, elevation 126 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).