Bulgan weather in December

In December, Bulgan sees average daytime highs of -11°C and overnight lows near -22°C, with 3 mm of precipitation across 1.2 wet days and about 8.1 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about -10°C in the first days to -13°C by the end. The sky is clear or mostly clear about 60% 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 h 06 min by month's end. Set against the rest of the year, December is Bulgan's 2nd-clearest and 4th-windiest month. For the whole year in context, see Bulgan's year-round climate.

Daytime high
-11°
11th warmest
Overnight low
-22°
2nd coldest
Precipitation
3 mm
1.2 wet days
Daylight
8 h 06 min
9:00 AM – 5:04 PM
Cloud cover
37%
2nd clearest
Wind
9 km/h
4th windiest
Solar energy
1.42 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -10°C in the first days to -13°C by the end.

A typical December day in Bulgan reaches about -11°C in the afternoon and slips back to -22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between -19°C and -5°C. Set against its neighbours, December runs about 7°C cooler than November and about 2°C warmer than January.

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

How December really feels in Bulgan

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.

Bulgan 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-13° / -25°20.61.28.50.0
Feb-8° / -22°31.21.99.80.0
Mar / -13°103.13.911.60.0
Apr10° / -3°225.94.513.42.5
May17° / 377.92.4155.6
Jun22° / 10°5910.50.115.96.5
Jul23° / 13°7912.9015.56.4
Aug21° / 10°7611.2014.26.3
Sep16° / 367.21.212.45.4
Oct / -5°174.43.710.51.5
Nov-4° / -15°82.63.38.90.0
Dec-11° / -22°31.21.58.10.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37228
47129
57129
67129
77228
87228
97228
107327
117327
127327
137327
147426
157426
167426
177426
187426
197426
207327
217327
227327
237327
247327
257327
267327
277327
287327
297426
307426
317525

Chance of precipitation in December

Any precipitationSnow

Bulgan gets around 3 mm of rain and snow over 1.2 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 4% and peaks near 5% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
156
256
356
446
545
645
745
845
944
1044
1134
1234
1334
1434
1534
1634
1734
1834
1934
2045
2145
2245
2345
2445
2545
2646
2746
2846
2946
3046
3146

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 9 km/h in December.

Across December, 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 December

DaylightNight

Daylight runs from about 8 h 18 min at the start of December to 8 h 06 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 8:45 AM to 9:06 AM, and sunset from 5:06 PM to 5:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.38:455:06
28.38:465:06
38.38:485:05
48.38:495:05
58.28:505:05
68.28:515:04
78.28:525:04
88.28:535:04
98.28:545:04
108.18:555:04
118.18:565:04
128.18:575:04
138.18:585:04
148.18:595:04
158.18:595:04
168.19:005:04
178.19:015:04
188.19:015:04
198.09:025:05
208.09:035:05
218.09:035:06
228.09:045:06
238.09:045:07
248.09:045:07
258.09:055:08
268.19:055:08
278.19:055:09
288.19:065:10
298.19:065:10
308.19:065:11
318.19:065:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.42 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.42 kWh/m² to a high of 6.5 kWh/m² in May across the year — December's 1.42 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.5Dim
41.5Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.4Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.4Dim
281.4Dim
291.4Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Bulgan?

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 Bulgan.

What to pack for Bulgan in December

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

In December, Bulgan sees daytime highs around -11°C and nights near -22°C. Pack a warm layer and a heavy coat.

a warm layera heavy coat

UV index in Bulgan 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 Bulgan 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 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May7High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Bulgan?

Bulgan sits at 48.8°N, 103.5°E, 1,204 m above sea level, in Mongolia. The nearest listed city is Erdenet, 47 km away.

DarhanDzüünharaaTsetserlegSühbaatarMörönUlaanbaatarKyakhta

Topography around Bulgan

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

Within 3 km, the terrain around Bulgan has only modest variations in elevation — a maximum elevation change of 210 m around an average of 1,241 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,348 m.

The land around Bulgan is covered by grassland (89%) within 3 km, grassland (86%) within 16 km, and grassland (76%) and trees (23%) within 80 km.

3 km
210 m
16 km
1,028 m
80 km
1,348 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Erdenet 47 km · Darhan 189 km · Dzüünharaa 214 km · Tsetserleg 214 km · Sühbaatar 249 km · Mörön 261 km · Ulaanbaatar 267 km · Kyakhta 271 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 Bulgan (48.8125°, 103.5347°, elevation 1,204 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).