Trashigang weather in December

In December, Trashigang sees average daytime highs of 15°C and overnight lows near 5°C, with 24 mm of rain across 5.8 wet days and about 10.3 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 14°C by the end. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of December to 10 h 18 min by month's end. Set against the rest of the year, December is Trashigang's 3rd-clearest and 5th-windiest month. For the whole year in context, see Trashigang's year-round climate.

Daytime high: 15°; 10th warmest
Overnight low: 5°; 3rd coldest
Rainfall: 24 mm; 5.8 wet days
Daylight: 10 h 18 min; 6:41 AM – 4:58 PM
Cloud cover: 48%; 3rd clearest
Wind: 3 km/h; 5th windiest
Solar energy: 3.31 kWh/m²
Travel score: 5.0; out of 10

Trashigang is city.

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

← November Trashigang year-round climate January →Best places to visit in December

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 14°C by the end.

A typical December day in Trashigang reaches about 15°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°C warmer than January.

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

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

Trashigang weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	13° / 3°	35	8.7	10.5	4.0
Feb	15° / 4°	63	12.2	11	4.1
Mar	17° / 7°	120	17.9	11.8	4.5
Apr	19° / 10°	207	23	12.6	4.2
May	21° / 13°	320	27.9	13.3	3.9
Jun	22° / 16°	610	29.7	13.7	3.4
Jul	22° / 17°	871	31	13.6	3.3
Aug	23° / 17°	616	31	13	3.3
Sep	22° / 15°	391	28.7	12.2	3.6
Oct	21° / 11°	108	11.2	11.3	6.4
Nov	18° / 7°	21	4.7	10.7	6.6
Dec	15° / 5°	24	5.8	10.3	5.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	62	62	61	60	60	59	58	59	58	58	58	58	58	58	58	57	58	59	59	61	62	63	64	65	66	67	67	68	68	69	69
Cloudier (%)	38	38	39	40	40	41	42	41	42	42	42	42	42	42	42	43	42	41	41	39	38	37	36	35	34	33	33	32	32	31	31

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	61	39
4	60	40
5	60	40
6	59	41
7	58	42
8	59	41
9	58	42
10	58	42
11	58	42
12	58	42
13	58	42
14	58	42
15	58	42
16	57	43
17	58	42
18	59	41
19	59	41
20	61	39
21	62	38
22	63	37
23	64	36
24	65	35
25	66	34
26	67	33
27	67	33
28	68	32
29	68	32
30	69	31
31	69	31

Chance of precipitation in December

Any precipitation

Trashigang gets around 24 mm of rain over 5.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 23% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	15	15	16	16	17	17	18	18	19	20	20	21	21	22	22	23	23	22	22	22	21	21	20	19	19	19	18	18	18	18	18

	Rain chance (%)
1	15
2	15
3	16
4	16
5	17
6	17
7	18
8	18
9	19
10	20
11	20
12	21
13	21
14	22
15	22
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	20
24	19
25	19
26	19
27	18
28	18
29	18
30	18
31	18

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in December

Winds average 3 km/h in December.

Across December, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm
31	4	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 24 min at the start of December to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:32 AM to 6:48 AM, and sunset from 4:56 PM to 5:06 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.4	10.4	10.4	10.4	10.4	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3	10.3
Sunrise (AM)	6:32	6:32	6:33	6:34	6:34	6:35	6:36	6:36	6:37	6:38	6:38	6:39	6:40	6:40	6:41	6:41	6:42	6:43	6:43	6:44	6:44	6:45	6:45	6:45	6:46	6:46	6:47	6:47	6:47	6:48	6:48
Sunset (PM)	4:56	4:56	4:56	4:56	4:56	4:56	4:56	4:56	4:56	4:57	4:57	4:57	4:57	4:58	4:58	4:58	4:59	4:59	5:00	5:00	5:00	5:01	5:01	5:02	5:02	5:03	5:04	5:04	5:05	5:05	5:06

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.4	6:32	4:56
2	10.4	6:32	4:56
3	10.4	6:33	4:56
4	10.4	6:34	4:56
5	10.4	6:34	4:56
6	10.3	6:35	4:56
7	10.3	6:36	4:56
8	10.3	6:36	4:56
9	10.3	6:37	4:56
10	10.3	6:38	4:57
11	10.3	6:38	4:57
12	10.3	6:39	4:57
13	10.3	6:40	4:57
14	10.3	6:40	4:58
15	10.3	6:41	4:58
16	10.3	6:41	4:58
17	10.3	6:42	4:59
18	10.3	6:43	4:59
19	10.3	6:43	5:00
20	10.3	6:44	5:00
21	10.3	6:44	5:00
22	10.3	6:45	5:01
23	10.3	6:45	5:01
24	10.3	6:45	5:02
25	10.3	6:46	5:02
26	10.3	6:46	5:03
27	10.3	6:47	5:04
28	10.3	6:47	5:04
29	10.3	6:47	5:05
30	10.3	6:48	5:05
31	10.3	6:48	5:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.31 kWh/m².

For context, solar energy here swings from a low near 3.16 kWh/m² to a high of 4.92 kWh/m² in April across the year — December's 3.31 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.4	3.4	3.4	3.4	3.4	3.5	3.5	3.5	3.5	3.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.3	Moderate
2	3.3	Moderate
3	3.3	Moderate
4	3.3	Moderate
5	3.3	Moderate
6	3.3	Moderate
7	3.3	Moderate
8	3.2	Moderate
9	3.2	Moderate
10	3.2	Moderate
11	3.2	Moderate
12	3.2	Moderate
13	3.2	Moderate
14	3.2	Moderate
15	3.3	Moderate
16	3.3	Moderate
17	3.3	Moderate
18	3.3	Moderate
19	3.3	Moderate
20	3.3	Moderate
21	3.3	Moderate
22	3.4	Moderate
23	3.4	Moderate
24	3.4	Moderate
25	3.4	Moderate
26	3.4	Moderate
27	3.5	Moderate
28	3.5	Moderate
29	3.5	Moderate
30	3.5	Moderate
31	3.5	Moderate

Planning a trip in December

Hazard calendar for Trashigang

In seasonPeak

None of Trashigang's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Trashigang's monsoon runs June–August, when most of the year's rain falls.

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is December a good time to visit Trashigang?

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

5.0

Sightseeing

3rd-best month of the year

0.2

Beach & pool

10th-best month of the year

December is a reasonable time to visit Trashigang for sightseeing.

What to pack for Trashigang in December

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

In December, Trashigang sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

UV index in Trashigang in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Trashigang peaks around July 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	5	6	9	9	11	13	14	12	11	8	6	5
Level	Moderate	High	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	High	Moderate

	UV index (midday)	Level
Jan	5	Moderate
Feb	6	High
Mar	9	Very high
Apr	9	Very high
May	11	Extreme
Jun	13	Extreme
Jul	14	Extreme
Aug	12	Extreme
Sep	11	Extreme
Oct	8	Very high
Nov	6	High
Dec	5	Moderate

Air quality in Trashigang 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 Trashigang is worst in February — around 73 µg/m³ PM2.5 (unhealthy), about 3.7× the cleanest month (July, 20 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	64	73	67	55	36	27	20	24	28	36	45	54
Level	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Poor

	PM2.5 (µg/m³)	Level
Jan	64	Unhealthy
Feb	73	Unhealthy
Mar	67	Unhealthy
Apr	55	Poor
May	36	Poor
Jun	27	Moderate
Jul	20	Moderate
Aug	24	Moderate
Sep	28	Moderate
Oct	36	Poor
Nov	45	Poor
Dec	54	Poor

Location & terrain

Where is Trashigang?

Trashigang sits at 27.3°N, 91.6°E, 0 m above sea level, in Bhutan. The nearest listed city is Mongar, 32 km away.

Topography around Trashigang

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

Within 3 km, the terrain around Trashigang has very significant variations in elevation — a maximum elevation change of 1,730 m around an average of 1,273 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,540 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,299 m.

The land around Trashigang is covered by trees (63%) and grassland (35%) within 3 km, trees (79%) within 16 km, and trees (78%) within 80 km.

3 km

1,730 m

trees 63%

16 km

3,540 m

trees 79%

80 km

6,299 m

trees 78%

treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen

← November Trashigang year-round climate January →Best places to visit in December

December weather nearby: Mongar 32 km · Samdrup Jongkhar 59 km · Jakar 83 km · Trongsa 105 km · Tsirang 146 km · Punakha 168 km · Thimphu 189 km · Paro 212 km

Bhutan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / D / F / G / M; 230 V · 50 Hz
Prices: ≈ 23% of US; price level, 2025
GDP per capita: $4,493; 2025
Happiness: 5.1 / 10; World Happiness, 2018
Safe drinking water: 66%; of population, 2024
Homicide rate: 2.5; per 100k, 2020
Road deaths: 16.2; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Low; EF EPI 473
Religion

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 Trashigang (27.3331°, 91.5542°, elevation 0 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).

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	61	39
4	60	40
5	60	40
6	59	41
7	58	42
8	59	41
9	58	42
10	58	42
11	58	42
12	58	42
13	58	42
14	58	42
15	58	42
16	57	43
17	58	42
18	59	41
19	59	41
20	61	39
21	62	38
22	63	37
23	64	36
24	65	35
25	66	34
26	67	33
27	67	33
28	68	32
29	68	32
30	69	31
31	69	31

	Rain chance (%)
1	15
2	15
3	16
4	16
5	17
6	17
7	18
8	18
9	19
10	20
11	20
12	21
13	21
14	22
15	22
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	20
24	19
25	19
26	19
27	18
28	18
29	18
30	18
31	18

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	61	39
4	60	40
5	60	40
6	59	41
7	58	42
8	59	41
9	58	42
10	58	42
11	58	42
12	58	42
13	58	42
14	58	42
15	58	42
16	57	43
17	58	42
18	59	41
19	59	41
20	61	39
21	62	38
22	63	37
23	64	36
24	65	35
25	66	34
26	67	33
27	67	33
28	68	32
29	68	32
30	69	31
31	69	31

	Rain chance (%)
1	15
2	15
3	16
4	16
5	17
6	17
7	18
8	18
9	19
10	20
11	20
12	21
13	21
14	22
15	22
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	20
24	19
25	19
26	19
27	18
28	18
29	18
30	18
31	18

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	61	39
4	60	40
5	60	40
6	59	41
7	58	42
8	59	41
9	58	42
10	58	42
11	58	42
12	58	42
13	58	42
14	58	42
15	58	42
16	57	43
17	58	42
18	59	41
19	59	41
20	61	39
21	62	38
22	63	37
23	64	36
24	65	35
25	66	34
26	67	33
27	67	33
28	68	32
29	68	32
30	69	31
31	69	31

	Rain chance (%)
1	15
2	15
3	16
4	16
5	17
6	17
7	18
8	18
9	19
10	20
11	20
12	21
13	21
14	22
15	22
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	20
24	19
25	19
26	19
27	18
28	18
29	18
30	18
31	18

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100