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Vientiane

Vientiane 1
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Vientiane Weather and climate

Data source：Meteostat
Update date：2025-09

Vientiane year round climate
  • Spring (March–May): Average 28.5–30.7°C, hot climate. Temperatures gradually increase starting in March, and rainfall also begins to increase. Common activities: Visiting temples, exploring city attractions. Recommended clothing: Light and breathable clothing, short sleeves, loose-fitting long pants, sun hat.
  • Summer (June–August): Average 27.8–28.6°C, hot and humid climate with abundant rainfall. Afternoon thunderstorms are frequent. Common activities: Relaxing by the Mekong River, enjoying indoor activities such as visiting museums. Recommended clothing: Light and breathable clothing, short sleeves, loose-fitting long pants, rain gear.
  • Autumn (September–November): Average 26.9–28°C, warm and comfortable climate. September has the most rainfall, which gradually decreases afterwards. Common activities: Outdoor activities, sightseeing. Recommended clothing: Comfortable and breathable clothing, a light jacket or shawl for backup.
  • Winter (December–February): Average 23.7–25.4°C, relatively cool and dry climate. This is the driest season of the year. Common activities: Visiting temples, exploring city attractions. Recommended clothing: Long-sleeved shirts, light jacket.
Vientiane climatological average

Annual average temperature: approx. 27.4°C / Annual rainfall: approx. 1862 mm / Summer humidity: 75%–85% / Rainiest month: September

Vientiane monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
23.7°C
17
February
25.4°C
40.7
March
28.5°C
65
April
30.7°C
44.3
May
29.5°C
163.7
June
28.6°C
251.7
July
28.5°C
377.3
August
27.8°C
408
September
27.6°C
427.7
October
28°C
60.3
November
26.9°C
6.3
December
24°C
0
Vientiane weather for the next seven days
10/13
Monday
Moderate rain
30.2°C/22.8°C
10/14
Tuesday
Heavy rain
29.7°C/23.1°C
10/15
Wednesday
Moderate rain
26.1°C/22.1°C
10/16
Thursday
Patchy rain nearby
31.2°C/21.9°C
10/17
Friday
Sunny
31.3°C/22.6°C
10/18
Saturday
Partly Cloudy
31°C/22.7°C
10/19
Sunday
Partly Cloudy
30.3°C/22.4°C

Vientiane FAQ

What is the best time to visit?
The best time to visit is from October to March for aurora viewing and winter activities.
Which attractions are must-visit?
Must-visit attractions include That Luang Temple, the Arc de Triomphe and the Temple of the Reclining Buddha, which represent the culture and history of Laos.