Udachny weather in January

In January, Udachny sees average daytime highs of -30°C and overnight lows near -37°C, with 3 mm of precipitation across 0.9 wet days and about 3.6 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near -30°C through the month. The sky is clear or mostly clear about 9% of the time in January, and the air most often feels dry.

Daylight stretches from about 1 h 36 min at the start of January to 5 h 30 min by month's end. Set against the rest of the year, January is Udachny's 9th-clearest and 10th-windiest month. For the whole year in context, see Udachny's year-round climate.

Daytime high
-30°
12th warmest
Overnight low
-37°
1st coldest
Precipitation
3 mm
0.9 wet days
Daylight
3 h 36 min
11:53 AM – 3:26 PM
Cloud cover
81%
9th clearest
Wind
9 km/h
10th windiest
Solar energy
0.08 kWh/m²
Travel score
0.0
out of 10

Udachny is town in Mirninsky District, Sakha Republic, Russia.

Density
7,633/km²
people per km²
Founded
1967

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near -30°C through the month.

A typical January day in Udachny reaches about -30°C in the afternoon and slips back to -37°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -42°C and -19°C. Set against its neighbours, January runs about 1°C cooler than December and about 4°C cooler than February.

-50°-40°-30°-20°151015202531
Avg high (°C)Avg low (°C)
1-30-37
2-30-37
3-30-37
4-30-37
5-30-37
6-31-37
7-31-37
8-31-38
9-31-38
10-31-38
11-31-38
12-31-38
13-31-38
14-31-38
15-31-38
16-31-38
17-30-37
18-30-37
19-30-37
20-30-37
21-30-37
22-30-37
23-30-37
24-29-36
25-29-36
26-29-36
27-29-36
28-29-36
29-29-36
30-29-36
31-29-36

How January really feels in Udachny

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
31 feel bitter (≤ -10°C)

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

Udachny weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-30° / -37°30.92.13.60.0
Feb-26° / -34°30.827.40.0
Mar-15° / -26°62.13.711.10.0
Apr-3° / -14°205.66.714.90.0
May / -4°429.67.118.80.7
Jun16° / 5410.8122.44.7
Jul20° / 10°599.3020.66.2
Aug16° / 5610.20.316.64.7
Sep / -1°419.44.412.80.8
Oct-7° / -14°226.1890.0
Nov-22° / -29°82.54.75.10.0
Dec-29° / -36°31.22.41.60.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21981
31981
41981
51981
62080
72179
82179
92179
102179
112179
122377
132377
142278
152179
162080
172080
182080
192080
202080
211882
221882
231882
241684
251783
261783
271783
281684
291783
301783
311783

Chance of precipitation in January

Any precipitationSnow

Udachny gets around 3 mm of rain and snow over 0.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 3% and peaks near 3% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
138
238
337
437
537
637
737
836
936
1036
1136
1236
1336
1436
1536
1636
1737
1837
1937
2037
2137
2237
2337
2437
2537
2637
2737
2837
2937
3037
3137

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 9 km/h in January.

Across January, 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.

051015151015202531
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
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 1 h 36 min at the start of January to 5 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 234 minutes over January. Sunrise moves from 12:45 PM to 10:58 AM, and sunset from 2:22 PM to 4:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
11.612:452:22
21.712:422:26
31.912:382:31
42.012:352:35
52.112:322:39
62.212:282:43
72.412:252:47
82.512:222:52
92.612:182:56
102.812:153:00
112.912:113:05
123.012:073:09
133.212:043:13
143.312:003:18
153.411:573:22
163.611:533:26
173.711:493:31
183.811:463:35
193.911:423:39
204.111:393:43
214.211:353:48
224.311:313:52
234.511:283:56
244.611:244:00
254.711:204:05
264.911:164:09
275.011:134:13
285.111:094:17
295.311:054:21
305.411:024:26
315.510:584:30

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.08 kWh/m².

For context, solar energy here swings from a low near 0.01 kWh/m² to a high of 5.52 kWh/m² in June across the year — January's 0.08 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.0Dim
20.0Dim
30.0Dim
40.0Dim
50.0Dim
60.0Dim
70.0Dim
80.0Dim
90.0Dim
100.0Dim
110.0Dim
120.0Dim
130.1Dim
140.1Dim
150.1Dim
160.1Dim
170.1Dim
180.1Dim
190.1Dim
200.1Dim
210.1Dim
220.1Dim
230.1Dim
240.1Dim
250.2Dim
260.2Dim
270.2Dim
280.2Dim
290.2Dim
300.2Dim
310.3Dim
Planning a trip in January

Is January a good time to visit Udachny?

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

0.0
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

January is a weaker month for outdoor sightseeing in Udachny.

What to pack for Udachny in January

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

In January, Udachny sees daytime highs around -30°C and nights near -37°C. Pack a warm layer and a heavy coat.

a warm layera heavy coat

UV index in Udachny in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Udachny peaks around July 16 at about 5 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 16UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug3Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low

Air quality in Udachny in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Udachny is worst in August — around 16 µg/m³ PM2.5 (moderate), about 32.8× the cleanest month (December, 1 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1216 µg/m³Dec 181 µg/m³
PM2.5 (µg/m³)Level
Jan1Good
Feb1Good
Mar3Good
Apr4Good
May5Good
Jun8Good
Jul14Moderate
Aug16Moderate
Sep6Good
Oct2Good
Nov1Good
Dec1Good
Location & terrain

Where is Udachny?

Udachny sits at 66.4°N, 112.4°E, 315 m above sea level, in Russia. The nearest listed city is Aykhal, 69 km away.

LenskBodayboYakutskTalnakhNorilskUst’-Ilimsk

Topography around Udachny

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

Within 3 km, the terrain around Udachny has significant variations in elevation — a maximum elevation change of 253 m around an average of 333 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 386 m; within 80 km, significant variations in elevation — a maximum elevation change of 593 m.

The land around Udachny is covered by trees (68%) within 3 km, trees (92%) within 16 km, and trees (97%) within 80 km.

3 km
253 m
16 km
386 m
80 km
593 m
treesgrasslandbare terrainwatermoss and lichen
January weather nearby: Aykhal 69 km · Mirny 439 km · Lensk 647 km · Bodaybo 958 km · Yakutsk 965 km · Talnakh 1,050 km · Norilsk 1,055 km · Ust’-Ilimsk 1,062 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 Udachny (66.4299°, 112.4021°, elevation 315 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).