Trashigang in Winter
In winter (December, January and February), Trashigang sees average daytime highs around 14°C and overnight lows near 4°C, with 122 mm of rain over about 27 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 14°C. The sky is clear or mostly clear about 35% of the time across winter, and the air most often feels dry.
Winter is Trashigang's 2nd-best season to visit on our travel score. For the whole year in context, see Trashigang's year-round climate.
- Avg daytime high
- 14°C
- coldest season of the year
- Avg overnight low
- 4°C
- Rainfall
- 122 mm
- 27 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.4
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Trashigang in Winter
Across winter, daytime highs hold fairly steady around 14°C.
A typical winter day in Trashigang reaches about 14°C and drops to 4°C overnight. The warmest of the three months is December, the coolest January.
Trashigang weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| 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 Winter
The sky is clear or mostly clear about 35% of the time across winter.
Chance of precipitation in Winter
Trashigang gets around 122 mm of rain over 27 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 4 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 24 min in early December to 11 h 24 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.6 kWh/m².
Hazard calendar for Trashigang
None of Trashigang's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Trashigang's monsoon runs June–August, when most of the year's rain falls.
Is winter a good time to visit Trashigang?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Trashigang for sightseeing.
What to pack for Trashigang in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Trashigang sees daytime highs around 14°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 27 days see rain.
UV index in Trashigang in Winter
Clear-sky midday UV across winter averages 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 Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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 |
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.
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.