Muang Phônsavan in Summer
In summer (June, July and August), Muang Phônsavan sees average daytime highs around 27°C and overnight lows near 20°C, with 713 mm of rain over about 82 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 1% of the time across summer, and the air most often feels muggy.
Summer is Muang Phônsavan's weakest season of the year to visit on our travel score. For the whole year in context, see Muang Phônsavan's year-round climate.
- Avg daytime high
- 27°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 713 mm
- 82 wet days
- Avg wind
- 6 km/h
- Travel score
- 3.6
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Muang Phônsavan in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Muang Phônsavan reaches about 27°C and drops to 20°C overnight. The warmest of the three months is June, the coolest August.
Muang Phônsavan 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 | 23° / 10° | 20 | 3.3 | 11 | 8.1 |
| Feb | 25° / 11° | 18 | 3.8 | 11.3 | 8.2 |
| Mar | 26° / 14° | 63 | 10.6 | 11.9 | 6.8 |
| Apr | 27° / 17° | 117 | 18.9 | 12.4 | 5.2 |
| May | 28° / 19° | 165 | 25.2 | 12.9 | 4.0 |
| Jun | 27° / 21° | 185 | 26 | 13.2 | 3.7 |
| Jul | 27° / 20° | 253 | 27.8 | 13.1 | 3.6 |
| Aug | 26° / 20° | 275 | 28.6 | 12.7 | 3.6 |
| Sep | 26° / 19° | 173 | 21 | 12.1 | 4.7 |
| Oct | 25° / 17° | 68 | 10.9 | 11.6 | 6.6 |
| Nov | 24° / 13° | 20 | 4.5 | 11.1 | 8.0 |
| Dec | 22° / 10° | 14 | 2.4 | 10.8 | 8.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 1% of the time across summer.
Chance of precipitation in Summer
Muang Phônsavan gets around 713 mm of rain over 82 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 6 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 4.2 kWh/m².
Hazard calendar for Muang Phônsavan
In summer, Muang Phônsavan overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Muang Phônsavan's monsoon runs May–September, when most of the year's rain falls.
Is summer a good time to visit Muang Phônsavan?
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 Muang Phônsavan.
What to pack for Muang Phônsavan in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Muang Phônsavan sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. About 82 days see rain.
UV index in Muang Phônsavan in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Muang Phônsavan peaks around June 20 at about 14 (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 | 12 | 14 | 13 | 14 | 11 | 11 | 8 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 11 | Extreme |
| Apr | 10 | Extreme |
| May | 12 | Extreme |
| Jun | 14 | Extreme |
| Jul | 13 | Extreme |
| Aug | 14 | Extreme |
| Sep | 11 | Extreme |
| Oct | 11 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in Muang Phônsavan 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 Muang Phônsavan is worst in April — around 227 µg/m³ PM2.5 (very unhealthy), about 32.9× the cleanest month (August, 7 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) | 13 | 33 | 206 | 227 | 22 | 8 | 7 | 7 | 7 | 8 | 7 | 9 |
| Level | Moderate | Moderate | Very unhealthy | Very unhealthy | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 33 | Moderate |
| Mar | 206 | Very unhealthy |
| Apr | 227 | Very unhealthy |
| May | 22 | Moderate |
| Jun | 8 | Good |
| Jul | 7 | Good |
| Aug | 7 | Good |
| Sep | 7 | Good |
| Oct | 8 | Good |
| Nov | 7 | Good |
| Dec | 9 | Good |
Where is Muang Phônsavan?
Muang Phônsavan sits at 19.4°N, 103.2°E, 1,106 m above sea level, in Laos. The nearest listed city is Vang Vieng, 98 km away.
Topography around Muang Phônsavan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Muang Phônsavan.
Within 3 km, the terrain around Muang Phônsavan has only modest variations in elevation — a maximum elevation change of 229 m around an average of 1,111 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 903 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,599 m.
The land around Muang Phônsavan is covered by grassland (36%), cropland (27%) and artificial surfaces (26%) within 3 km, trees (45%) and grassland (35%) within 16 km, and trees (82%) 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 Muang Phônsavan (19.4494°, 103.1917°, elevation 1,106 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.