Lensk weather in December

In December, Lensk sees average daytime highs of -24°C and overnight lows near -31°C, with 14 mm of precipitation across 4.8 wet days and about 5.4 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near -24°C through the month. The sky is clear or mostly clear about 3% of the time in December, and the air most often feels dry.

Daylight stretches from about 5 h 54 min at the start of December to 5 h 24 min by month's end. Set against the rest of the year, December is Lensk's 12th-clearest and 4th-windiest month. For the whole year in context, see Lensk's year-round climate.

Daytime high
-24°
11th warmest
Overnight low
-31°
2nd coldest
Precipitation
14 mm
4.8 wet days
Daylight
5 h 18 min
10:37 AM – 3:55 PM
Cloud cover
91%
12th clearest
Wind
11 km/h
4th windiest
Solar energy
0.2 kWh/m²
Travel score
0.0
out of 10

Lensk is human settlement in Sakha Republic, Russia.

Density
484/km²
people per km²
Founded
1663

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near -24°C through the month.

A typical December day in Lensk reaches about -24°C in the afternoon and slips back to -31°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -37°C and -12°C. Set against its neighbours, December runs about 9°C cooler than November and on par with January.

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

How December really feels in Lensk

Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.

Lensk weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-24° / -31°124.88.96.20.0
Feb-19° / -28°113.76.98.50.0
Mar-8° / -19°155.57.511.30.0
Apr / -9°205.96.314.20.1
May12° / 419.42.616.92.9
Jun21° / 499.70.118.66.2
Jul23° / 12°6710.8017.96.6
Aug20° / 6010.7015.55.9
Sep10° / 49102.512.62.2
Oct-2° / -8°339.39.89.70.0
Nov-16° / -23°267.811.370.0
Dec-24° / -31°144.88.35.40.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 3% of December, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5694
6694
7694
8694
9595
10595
11595
12694
13694
14694
15694
16694
17793
18793
19793
20793
21694
22694
23694
24694
25694
26694
27694
28694
29694
30793
31892

Chance of precipitation in December

Any precipitationSnow

Lensk gets around 14 mm of rain and snow over 4.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 16% and peaks near 18% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
11828
21727
31727
41727
51627
61627
71627
81627
91627
101627
111628
121628
131628
141629
151629
161629
171629
181529
191529
201528
211528
221528
231528
241528
251528
261528
271628
281628
291628
301628
311728

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 5 h 54 min at the start of December to 5 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over December. Sunrise moves from 10:14 AM to 10:42 AM, and sunset from 4:06 PM to 4:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
15.910:144:06
25.810:164:05
35.810:184:04
45.710:204:03
55.710:214:02
65.610:234:01
75.610:254:00
85.510:273:59
95.510:283:58
105.510:303:58
115.410:313:57
125.410:333:57
135.410:343:56
145.310:353:56
155.310:363:56
165.310:373:55
175.310:383:55
185.310:393:55
195.310:403:56
205.310:413:56
215.210:413:56
225.210:423:57
235.210:423:57
245.310:433:58
255.310:433:58
265.310:433:59
275.310:434:00
285.310:434:01
295.310:434:02
305.310:434:03
315.410:424:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.2 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.2 kWh/m² to a high of 5.98 kWh/m² in June across the year — December's 0.2 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.3Dim
20.3Dim
30.3Dim
40.3Dim
50.3Dim
60.2Dim
70.2Dim
80.2Dim
90.2Dim
100.2Dim
110.2Dim
120.2Dim
130.2Dim
140.2Dim
150.2Dim
160.2Dim
170.2Dim
180.2Dim
190.2Dim
200.2Dim
210.2Dim
220.2Dim
230.2Dim
240.2Dim
250.2Dim
260.2Dim
270.2Dim
280.2Dim
290.2Dim
300.2Dim
310.2Dim
Planning a trip in December

Is December a good time to visit Lensk?

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

0.0
Sightseeing
7th-best month of the year
0.0
Beach & pool
6th-best month of the year

December is a weaker month for outdoor sightseeing in Lensk.

What to pack for Lensk in December

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

In December, Lensk sees daytime highs around -24°C and nights near -31°C. Pack a warm layer and a heavy coat. About 5 days see rain.

a warm layera heavy coat

UV index in Lensk in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Lensk peaks around June 9 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 3 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowModerateLowJun 9UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar1Low
Apr3Moderate
May4Moderate
Jun4Moderate
Jul0Low
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low

Air quality in Lensk in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lensk is worst in July — around 31 µg/m³ PM2.5 (moderate), about 30.9× the cleanest month (December, 1 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 2331 µg/m³Dec 181 µg/m³
PM2.5 (µg/m³)Level
Jan2Good
Feb3Good
Mar5Good
Apr7Good
May7Good
Jun10Good
Jul31Moderate
Aug30Moderate
Sep13Moderate
Oct5Good
Nov2Good
Dec1Good
Location & terrain

Where is Lensk?

Lensk sits at 60.7°N, 114.9°E, 192 m above sea level, in Russia. The nearest listed city is Mirny, 208 km away.

AykhalAldanUdachnySeverobaykal’skUst’-KutNeryungri

Topography around Lensk

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

Within 3 km, the terrain around Lensk has only modest variations in elevation — a maximum elevation change of 234 m around an average of 183 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, large variations in elevation — a maximum elevation change of 726 m.

The land around Lensk is covered by trees (52%) and water (20%) within 3 km, trees (92%) within 16 km, and trees (97%) within 80 km.

3 km
234 m
16 km
415 m
80 km
726 m
treesgrasslandartificial surfacesbare terrainwater
December weather nearby: Mirny 208 km · Bodaybo 322 km · Aykhal 604 km · Aldan 632 km · Udachny 647 km · Severobaykal’sk 654 km · Ust’-Kut 684 km · Neryungri 723 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 Lensk (60.7238°, 114.9345°, elevation 192 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).