Vientiane Historic Weather Records

Analyse hottest, coldest, windiest & wettest days

Vientiane Weather Trend Graph


Temperature (°C)
.
Months
Max Temp.
Historic Max Temp.
Min Temp.
Historic Min Temp.

Yearly Summary 2025


38°C
Highest Temp
5 Mar. 25

10°C
Lowest Temp
13 Jan. 25


Seasonal Breakdown

Hottest MonthApril34.32°C

Coldest MonthJanuary14.23°C

Wettest MonthMay6.82mm

Windiest MonthMarch15.38km/h

Frequently Asked Questions


1. What is the hottest month in Vientiane historically?

April is historically Vientiane's hottest month, with average maximum temperatures around 35°C. During peak heatwave events, the highest recorded temperatures have reached 43°C on 2023-05-06.

2. What is the coldest month in Vientiane historically?

January is Vientiane's coldest month, with average minimum temperatures around 17°C. The all-time record low of 9°C was recorded on 2016-01-25.

3. What is the average annual rainfall in Vientiane over the past 16 years?

Vientiane's average annual rainfall is approximately 2028.7mm, based on records spanning 16 years.

4. How many rainy days does Vientiane experience on average per year?

Vientiane historically records approximately 201.4 rainy days per year. August has the highest number of rain days at an average of 30.4 days.

5. What is the all-time highest temperature ever recorded in Vientiane?

The all-time highest temperature recorded in Vientiane is 43°C on 2023-05-06.

6. What is the all-time lowest temperature ever recorded in Vientiane?

The all-time lowest temperature recorded in Vientiane is 9°C on 2016-01-25.

7. What is the windiest time of year in Vientiane historically?

Vientiane experiences its strongest winds during March. The historic gust record of 29.2 kph was recorded on 2023-03-12.

8. What is the highest and lowest humidity in Vientiane during a year?

Usually, Vientiane's humidity peaks in August at around 84% and drops to its lowest in March at approximately 43.1%.