Ulaangom weather in December

In December, Ulaangom sees average daytime highs of -14°C and overnight lows near -21°C, with 2 mm of precipitation across 0.5 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about -11°C in the first days to -15°C by the end. The sky is clear or mostly clear about 41% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 12 min at the start of December to 7 h 54 min by month's end. Set against the rest of the year, December is Ulaangom's 6th-clearest and 12th-windiest month. For the whole year in context, see Ulaangom's year-round climate.

Daytime high
-14°
11th warmest
Overnight low
-21°
2nd coldest
Precipitation
2 mm
0.5 wet days
Daylight
7 h 54 min
8:51 AM – 4:44 PM
Cloud cover
50%
6th clearest
Wind
5 km/h
12th windiest
Solar energy
1.2 kWh/m²
Travel score
0.0
out of 10

Ulaangom is capital of Uvs Province in Mongolia.

Density
218/km²
people per km²
Founded
1686

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -11°C in the first days to -15°C by the end.

A typical December day in Ulaangom reaches about -14°C in the afternoon and slips back to -21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -20°C and -8°C. Set against its neighbours, December runs about 9°C cooler than November and about 2°C warmer than January.

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

How December really feels in Ulaangom

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.

Ulaangom weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-15° / -24°10.30.68.40.0
Feb-11° / -21°31.11.99.70.0
Mar-2° / -13°82.83.111.50.0
Apr10° / -1°144.11.613.52.8
May19° / 215.70.715.16.5
Jun24° / 13°367.60.116.17.1
Jul25° / 16°5810.8015.76.6
Aug23° / 13°5510.1014.36.9
Sep17° / 306.70.512.45.8
Oct / -2°133.41.810.51.7
Nov-5° / -12°622.68.80.0
Dec-14° / -21°20.50.97.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65743
75743
85842
95941
105941
116040
126139
136238
146238
156337
166337
176337
186337
196337
206238
216238
226238
236139
246139
256139
266040
276040
286040
296040
306139
316139

Chance of precipitation in December

Any precipitationSnow

Ulaangom gets around 2 mm of rain and snow over 0.5 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 1% and peaks near 3% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
135
234
334
434
534
624
724
824
924
1023
1113
1213
1313
1413
1513
1613
1713
1812
1912
2012
2112
2212
2312
2412
2512
2612
2712
2812
2912
3012
3112

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 5 km/h in December, the calmest month.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 12 min at the start of December to 7 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:36 AM to 8:57 AM, and sunset from 4:47 PM to 4:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.28:364:47
28.28:374:46
38.18:394:46
48.18:404:46
58.18:414:45
68.08:424:45
78.08:434:45
88.08:444:44
98.08:454:44
108.08:464:44
117.98:474:44
127.98:484:44
137.98:494:44
147.98:504:44
157.98:514:44
167.98:514:44
177.98:524:45
187.98:534:45
197.98:534:45
207.98:544:46
217.98:554:46
227.98:554:46
237.98:564:47
247.98:564:47
257.98:564:48
267.98:574:49
277.98:574:49
287.98:574:50
297.98:574:51
307.98:574:52
317.98:574:52

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.2 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.2 kWh/m² to a high of 6.9 kWh/m² in June across the year — December's 1.2 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.3Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.2Dim
141.2Dim
151.2Dim
161.2Dim
171.2Dim
181.2Dim
191.2Dim
201.2Dim
211.2Dim
221.2Dim
231.2Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.2Dim
291.2Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Ulaangom?

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

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Ulaangom.

What to pack for Ulaangom in December

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

In December, Ulaangom sees daytime highs around -14°C and nights near -21°C. Pack a warm layer and a heavy coat.

a warm layera heavy coat

UV index in Ulaangom in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ulaangom peaks around July 16 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJul 16UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May8Very high
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Ulaangom?

Ulaangom sits at 50.0°N, 92.1°E, 935 m above sea level, in Mongolia. The nearest listed city is Ölgii, 189 km away.

ÖlgiiKhovdKyzylAbazaSayanogorskShushenskoye

Topography around Ulaangom

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

Within 3 km, the terrain around Ulaangom has only modest variations in elevation — a maximum elevation change of 199 m around an average of 939 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 635 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,264 m.

The land around Ulaangom is covered by grassland (73%) within 3 km, grassland (87%) within 16 km, and grassland (62%) within 80 km.

3 km
199 m
16 km
635 m
80 km
3,264 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmoss and lichen
December weather nearby: Ölgii 189 km · Khovd 222 km · Kyzyl 254 km · Abaza 327 km · Sayanogorsk 350 km · Shushenskoye 372 km · Minusinsk 414 km · Abakan 418 km

Mongolia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$7,108
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
5.9
per 100k, 2023
Road deaths
21
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 447
Religion
Buddhist 52%no religion 41%Muslim 3%Shaman 3%

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 Ulaangom (49.9811°, 92.0667°, elevation 935 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).