Darhan weather in December

In December, Darhan sees average daytime highs of -13°C and overnight lows near -22°C, with 4 mm of precipitation across 1.5 wet days and about 8 hours of daylight. It is the 11th-warmest and 10th-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 47% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of December to 8 hours by month's end. Set against the rest of the year, December is Darhan's 5th-clearest and 11th-windiest month. For the whole year in context, see Darhan's year-round climate.

Daytime high
-13°
11th warmest
Overnight low
-22°
3rd coldest
Precipitation
4 mm
1.5 wet days
Daylight
8 hours
8:54 AM – 4:51 PM
Cloud cover
46%
5th clearest
Wind
8 km/h
11th windiest
Solar energy
1.29 kWh/m²
Travel score
0.0
out of 10

Darhan is capital city of Darkhan-Uul Aimag, Mongolia.

Density
814/km²
people per km²
Founded
1961

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 Darhan reaches about -13°C in the afternoon and slips back to -22°C overnight — a 9°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)
1-10-19
2-11-19
3-11-20
4-11-20
5-11-20
6-12-21
7-12-21
8-12-21
9-12-21
10-12-21
11-13-22
12-13-22
13-13-22
14-13-22
15-13-22
16-13-22
17-13-22
18-14-23
19-14-23
20-14-23
21-14-23
22-14-23
23-14-23
24-14-23
25-14-23
26-15-24
27-15-24
28-15-24
29-15-24
30-15-24
31-15-24

How December really feels in Darhan

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.

Darhan 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-15° / -26°20.50.98.40.0
Feb-9° / -22°20.71.39.80.0
Mar / -12°72.12.511.50.2
Apr12° / -2°184.23.113.43.3
May19° / 336.31.615.16.5
Jun25° / 12°518.40167.0
Jul27° / 15°6810.7015.66.4
Aug24° / 13°7810.4014.26.8
Sep18° / 397.40.712.46.1
Oct / -4°183.92.810.51.9
Nov-4° / -14°82.63.48.90.0
Dec-13° / -22°41.52.180.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
35941
45941
55941
65941
75941
85941
95941
106040
116040
126040
136139
146139
156238
166337
176436
186436
196436
206535
216535
226535
236535
246535
256535
266436
276436
286535
296535
306535
316535

Chance of precipitation in December

Any precipitationSnow

Darhan gets around 4 mm of rain and snow over 1.5 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 5% and peaks near 5% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
157
257
347
447
547
657
756
856
946
1046
1146
1246
1346
1446
1546
1646
1746
1856
1956
2056
2156
2257
2357
2457
2557
2657
2757
2857
2956
3056
3156

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 8 km/h in December.

Across December, daily wind ranges from about 8 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
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 18 min at the start of December to 8 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:38 AM to 9:00 AM, and sunset from 4:54 PM to 4:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.38:384:54
28.28:404:53
38.28:414:53
48.28:424:52
58.18:434:52
68.18:444:52
78.18:454:51
88.18:474:51
98.18:484:51
108.08:494:51
118.08:494:51
128.08:504:51
138.08:514:51
148.08:524:51
158.08:534:51
168.08:544:51
178.08:544:52
187.98:554:52
197.98:564:52
207.98:564:52
217.98:574:53
227.98:574:53
237.98:584:54
247.98:584:54
257.98:584:55
267.98:594:56
278.08:594:56
288.08:594:57
298.08:594:58
308.09:004:58
318.09:004:59

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.45 kWh/m² in June across the year — December's 1.29 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.3Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.4Dim
Planning a trip in December

Is December a good time to visit Darhan?

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

0.0
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Darhan.

What to pack for Darhan in December

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

In December, Darhan sees daytime highs around -13°C and nights near -22°C. Pack a warm layer and a heavy coat.

a warm layera heavy coat

UV index in Darhan 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 Darhan peaks around July 15 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 15UV 7Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Darhan?

Darhan sits at 49.5°N, 105.9°E, 683 m above sea level, in Mongolia. The nearest listed city is Dzüünharaa, 81 km away.

ErdenetBulganUlaanbaatarGusinoozyorskDzuunmod

Topography around Darhan

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

Within 3 km, the terrain around Darhan has only modest variations in elevation — a maximum elevation change of 129 m around an average of 702 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 620 m; within 80 km, large variations in elevation — a maximum elevation change of 1,156 m.

The land around Darhan is covered by grassland (70%) and artificial surfaces (24%) within 3 km, grassland (87%) within 16 km, and grassland (72%) within 80 km.

3 km
129 m
16 km
620 m
80 km
1,156 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Dzüünharaa 81 km · Sühbaatar 85 km · Kyakhta 103 km · Erdenet 143 km · Bulgan 189 km · Ulaanbaatar 189 km · Gusinoozyorsk 204 km · Dzuunmod 212 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 Darhan (49.4867°, 105.9228°, elevation 683 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).