Öndörkhaan weather in December

In December, Öndörkhaan sees average daytime highs of -14°C and overnight lows near -24°C, with 2 mm of precipitation across 0.8 wet days and about 8.3 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about -12°C in the first days to -16°C by the end. The sky is clear or mostly clear about 62% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 30 min at the start of December to 8 h 18 min by month's end. Set against the rest of the year, December is Öndörkhaan's 3rd-clearest and 11th-windiest month. For the whole year in context, see Öndörkhaan's year-round climate.

Daytime high
-14°
11th warmest
Overnight low
-24°
2nd coldest
Precipitation
2 mm
0.8 wet days
Daylight
8 h 18 min
8:25 AM – 4:42 PM
Cloud cover
36%
3rd clearest
Wind
11 km/h
11th windiest
Solar energy
1.58 kWh/m²
Travel score
0.0
out of 10

Öndörkhaan is capital of Khentii aimag and Kerlen Sum in Mongolia.

Density
6/km²
people per km²

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 -12°C in the first days to -16°C by the end.

A typical December day in Öndörkhaan reaches about -14°C in the afternoon and slips back to -24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between -21°C and -7°C. Set against its neighbours, December runs about 9°C cooler than November and about 2°C warmer than January.

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

How December really feels in Öndörkhaan

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.

Öndörkhaan 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-16° / -27°10.40.88.70.0
Feb-10° / -23°30.91.29.90.0
Mar / -13°61.9211.60.0
Apr10° / -3°112.9213.32.8
May18° / 244.80.914.86.5
Jun24° / 11°447.7015.77.1
Jul26° / 14°559.9015.36.7
Aug24° / 12°538.3014.17.2
Sep18° / 265.90.612.46.3
Oct / -4°133210.61.8
Nov-5° / -16°51.829.10.0
Dec-14° / -24°20.81.18.30.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 25%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67525
77525
87525
97525
107525
117525
127624
137624
147624
157624
167624
177525
187525
197426
207426
217426
227327
237327
247327
257327
267327
277327
287327
297327
307426
317525

Chance of precipitation in December

Any precipitationSnow

Öndörkhaan gets around 2 mm of rain and snow over 0.8 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 3% and peaks near 4% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
123
223
323
423
523
623
723
823
923
1023
1123
1223
1323
1423
1523
1633
1734
1834
1934
2034
2134
2235
2335
2435
2545
2645
2745
2835
2935
3035
3135

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 11 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
111calm
211calm
311calm
411calm
511calm
611calm
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 8 h 30 min at the start of December to 8 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 8:11 AM to 8:31 AM, and sunset from 4:44 PM to 4:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.58:114:44
28.58:124:43
38.58:134:43
48.58:144:43
58.58:154:42
68.48:164:42
78.48:174:42
88.48:184:42
98.48:194:42
108.48:204:42
118.38:214:42
128.38:224:42
138.38:234:42
148.38:244:42
158.38:244:42
168.38:254:42
178.38:264:42
188.38:264:43
198.38:274:43
208.38:284:43
218.38:284:44
228.38:294:44
238.38:294:45
248.38:294:45
258.38:304:46
268.38:304:46
278.38:304:47
288.38:314:48
298.38:314:48
308.38:314:49
318.38:314:50

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.58 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 6.51 kWh/m² in June across the year — December's 1.58 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.6Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.6Dim
221.6Dim
231.6Dim
241.6Dim
251.6Dim
261.6Dim
271.6Dim
281.6Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in December

Is December a good time to visit Öndörkhaan?

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 Öndörkhaan.

What to pack for Öndörkhaan in December

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

In December, Öndörkhaan sees daytime highs around -14°C and nights near -24°C. Pack a warm layer and a heavy coat.

a warm layera heavy coat

UV index in Öndörkhaan 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 Öndörkhaan peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 18UV 9Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May7Very high
Jun7High
Jul9Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Öndörkhaan?

Öndörkhaan sits at 47.3°N, 110.7°E, 1,030 m above sea level, in Mongolia. The nearest listed city is Baruun-Urt, 211 km away.

Baruun-UrtNalayhSaynshandDzuunmodZuunmodUlaanbaatarChoibalsanDzüünharaa

Topography around Öndörkhaan

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

Within 3 km, the terrain around Öndörkhaan has only modest variations in elevation — a maximum elevation change of 21 m around an average of 1,031 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 242 m; within 80 km, large variations in elevation — a maximum elevation change of 719 m.

The land around Öndörkhaan is covered by grassland (79%) within 3 km, grassland (98%) within 16 km, and grassland (99%) within 80 km.

3 km
21 m
16 km
242 m
80 km
719 m
grasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Baruun-Urt 211 km · Nalayh 258 km · Saynshand 274 km · Dzuunmod 281 km · Zuunmod 281 km · Ulaanbaatar 290 km · Choibalsan 302 km · Dzüünharaa 355 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 Öndörkhaan (47.3194°, 110.6556°, elevation 1,030 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).