Climate ▸Forecast ▸January ▸February ▸
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Vientiane Weather and Climate: A Comprehensive Guide

Vientiane has pretty similar weather over the course of the year. It is also known for its large amounts of rainfall. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

With minimal seasonal shifts, Vientiane experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a very hot 37°C in April to a very warm 30°C in the coolest month, January.

Nights are cooler, with lows often dropping to around 17°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Vientiane has a notably wet climate with abundant precipitation, recording 1948 mm of rainfall per year. The climate in Vientiane shows significant variation throughout the year. Expect heavy rainfall in August, with an average of 399 mm of precipitation over 24 rainy days.

In contrast, December offers drier and sunnier days, with around 10 mm of rainfall over 2 rainy days. For more details, please visit our Vientiane Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Vientiane serves as an ideal destination. Expect longer, more sun-filled days in December with an average of 8.3 hours of sunshine daily, and embrace the darker days in July, offering only 4.3 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Forecast for Vientiane

Wed   Jan 15
28°C | 12°C
E 4 m/s
clear and no rain

clear and no rain

Thu   Jan 16
26°C | 14°C
N 1 m/s
clear and no rain

clear and no rain

Fri   Jan 17
26°C | 12°C
SE 1 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Vientiane in Laos

Other facts from our historical weather data:
  • When is the rainy season in Vientiane?
    Rainy season in Vientiane occurs in the months of May, June, July, August and September.
  • Does Vientiane have a dry season?
    Yes, the months of January, February and December are very dry.
  • Which is the hottest month in Vientiane?
    April has an average maximum temperature of 37°C and is the hottest month of the year.
  • Which is the coolest month in Vientiane?
    The coolest month is January with an average maximum temperature of 30°C.
  • Which is the wettest month in Vientiane?
    August tops the wettest month list with 399 mm of rainfall.
  • Which is the driest month in Vientiane?
    December is the driest month with 10 mm of precipitation.
  • Which is the sunniest month in Vientiane?
    December is the sunniest month with an average of 249 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.