Mongar in Fall
In fall (September, October and November), Mongar sees average daytime highs around 20°C and overnight lows near 11°C, with 750 mm of rain over about 54 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 23°C in early September to 16°C by late November. The sky is clear or mostly clear about 30% of the time across fall, and the air most often feels dry.
Fall is Mongar's best season of the year to visit on our travel score. For the whole year in context, see Mongar's year-round climate.
- Avg daytime high
- 20°C
- 2nd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 750 mm
- 54 wet days
- Avg wind
- 3 km/h
- Travel score
- 5.1
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Mongar in Fall
Over the season highs ease from about 23°C in early September to 16°C by late November.
A typical fall day in Mongar reaches about 20°C and drops to 11°C overnight. The warmest of the three months is September, the coolest November.
Mongar weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 13° / 2° | 89 | 12.5 | 2.6 | 10.5 | 3.5 |
| Feb | 14° / 4° | 172 | 18.4 | 1.2 | 11 | 3.2 |
| Mar | 17° / 7° | 293 | 25.4 | 0 | 11.8 | 3.5 |
| Apr | 19° / 10° | 414 | 27.4 | 0 | 12.6 | 3.6 |
| May | 21° / 13° | 516 | 29.1 | 0 | 13.3 | 3.6 |
| Jun | 22° / 16° | 798 | 29.6 | 0 | 13.7 | 3.4 |
| Jul | 23° / 17° | 884 | 31 | 0 | 13.5 | 3.3 |
| Aug | 23° / 17° | 574 | 30.4 | 0 | 13 | 3.4 |
| Sep | 22° / 16° | 496 | 27.7 | 0 | 12.2 | 3.7 |
| Oct | 21° / 11° | 195 | 16.8 | 0 | 11.3 | 5.6 |
| Nov | 18° / 7° | 59 | 9 | 0 | 10.7 | 6.0 |
| Dec | 15° / 4° | 48 | 7.4 | 0.4 | 10.3 | 4.8 |
Cloud cover in Fall
The sky is clear or mostly clear about 30% of the time across fall.
Chance of precipitation in Fall
Mongar gets around 750 mm of rain over 54 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 3 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 36 min in early September to 10 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.9 kWh/m².
Hazard calendar for Mongar
In fall, Mongar overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Mongar's monsoon runs April–September, when most of the year's rain falls.
Is fall a good time to visit Mongar?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Mongar for sightseeing.
What to pack for Mongar in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Mongar sees daytime highs around 20°C and nights near 11°C. Pack rain gear. Worth having: light clothes and a warm layer. About 54 days see rain.
UV index in Mongar in Fall
Clear-sky midday UV across fall averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mongar peaks around July 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 | 5 | 8 | 9 | 10 | 13 | 13 | 11 | 11 | 7 | 6 | 5 |
| Level | Moderate | Moderate | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | Moderate |
| Feb | 5 | Moderate |
| Mar | 8 | Very high |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 7 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Mongar in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Mongar 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 Mongar?
Mongar sits at 27.3°N, 91.2°E, 0 m above sea level, in Bhutan. The nearest listed city is Trashigang, 32 km away.
Topography around Mongar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mongar.
Within 3 km, the terrain around Mongar has very significant variations in elevation — a maximum elevation change of 1,572 m around an average of 1,668 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,853 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,706 m.
The land around Mongar is covered by trees (78%) within 3 km, trees (89%) within 16 km, and trees (84%) 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 Mongar (27.2747°, 91.2396°, 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.