Vang Vieng in Summer
In summer (June, July and August), Vang Vieng sees average daytime highs around 28°C and overnight lows near 22°C, with 1482 mm of rain over about 90 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 1% of the time across summer, and the air most often feels oppressive.
Summer is Vang Vieng's weakest season of the year to visit on our travel score. For the whole year in context, see Vang Vieng's year-round climate.
- Avg daytime high
- 28°C
- 3rd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 1482 mm
- 90 wet days
- Avg wind
- 3 km/h
- Travel score
- 3.1
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Vang Vieng in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Vang Vieng reaches about 28°C and drops to 22°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Vang Vieng
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Vang Vieng weather by month
How the three summer months (June, July and August) 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 | 25° / 14° | 21 | 3.5 | 11 | 8.2 |
| Feb | 27° / 15° | 18 | 3.2 | 11.4 | 7.8 |
| Mar | 29° / 18° | 44 | 7.8 | 11.9 | 6.0 |
| Apr | 30° / 20° | 92 | 15.2 | 12.4 | 4.4 |
| May | 29° / 22° | 250 | 26.7 | 12.9 | 3.2 |
| Jun | 28° / 22° | 394 | 29.2 | 13.1 | 3.0 |
| Jul | 28° / 22° | 537 | 30.3 | 13 | 3.2 |
| Aug | 28° / 22° | 552 | 30.4 | 12.6 | 3.2 |
| Sep | 28° / 21° | 328 | 27.2 | 12.1 | 3.4 |
| Oct | 28° / 20° | 126 | 19.2 | 11.6 | 4.8 |
| Nov | 27° / 17° | 33 | 6.8 | 11.1 | 7.2 |
| Dec | 25° / 14° | 25 | 4.4 | 10.9 | 8.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 1% of the time across summer.
Chance of precipitation in Summer
Vang Vieng gets around 1482 mm of rain over 90 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 3 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 3.8 kWh/m².
Hazard calendar for Vang Vieng
In summer, Vang Vieng overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Vang Vieng's monsoon runs May–September, when most of the year's rain falls.
Is summer a good time to visit Vang Vieng?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Vang Vieng.
What to pack for Vang Vieng in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Vang Vieng sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 90 days see rain.
UV index in Vang Vieng in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Vang Vieng peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).
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) | 8 | 10 | 11 | 10 | 11 | 13 | 13 | 13 | 11 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 11 | Extreme |
| Apr | 10 | Very high |
| May | 11 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 11 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Vang Vieng in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Vang Vieng is worst in April — around 182 µg/m³ PM2.5 (very unhealthy), about 17.8× the cleanest month (September, 10 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) | 18 | 35 | 150 | 182 | 29 | 12 | 12 | 11 | 10 | 11 | 11 | 12 |
| Level | Moderate | Moderate | Unhealthy | Very unhealthy | Moderate | Good | Good | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 35 | Moderate |
| Mar | 150 | Unhealthy |
| Apr | 182 | Very unhealthy |
| May | 29 | Moderate |
| Jun | 12 | Good |
| Jul | 12 | Good |
| Aug | 11 | Good |
| Sep | 10 | Good |
| Oct | 11 | Good |
| Nov | 11 | Good |
| Dec | 12 | Moderate |
Where is Vang Vieng?
Vang Vieng sits at 18.9°N, 102.4°E, 243 m above sea level, in Laos. The nearest listed city is Muang Phônsavan, 98 km away.
Topography around Vang Vieng
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vang Vieng.
Within 3 km, the terrain around Vang Vieng has significant variations in elevation — a maximum elevation change of 415 m around an average of 276 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,402 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,653 m.
The land around Vang Vieng is covered by trees (64%) within 3 km, trees (89%) within 16 km, and trees (86%) within 80 km.
Laos travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C / E / F
- 230 V · 50 Hz
- Prices
- ≈ 23% of US
- price level, 2025
- GDP per capita
- $2,325
- 2025
- Happiness
- 5.5 / 10
- World Happiness, 2025
- Safe drinking water
- 35%
- of population, 2024
- Road deaths
- 17.9
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Low
- EF EPI 461
- 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 Vang Vieng (18.9235°, 102.4478°, elevation 243 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.