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LaosThe weather in May in Vientiane
It's hot in May in Vientiane with an average temperature of 35°C. Temperatures this month range from a low of 34°C to a high of 37°C. At night, you can expect temperatures between 22°C and 24°C.
Looking for sun? May isn’t a good month to be in Vientiane. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Vientiane, Laos. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 42°C in 2023, Vientiane reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 25°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 28°C.
Rainfall amount
In May, there is an average of 151 mm of precipitation, spread over 17 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in May for Vientiane
Click on any day in May to get detailed info about the usual weather on that day in Vientiane. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Vientiane | New York | |
|---|---|---|
| Average temperature | 35°C | 22°C |
| Max. temperature | 37°C | 28°C |
| Min. temperature | 22°C | -5°C |
| Total precipitation | 151 mm | 105 mm |
| Rainy days | 17 days | 14 days |
Start of May
The month of May starts in Vientiane with hot temps, averaging around 36°C during the day and nights around 23°C.
Mid May
By mid-May, daytime temps stay steady at around 36°C, with nights around 24°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Vientiane is around 35°C, while nighttime temps are about 24°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Vientiane for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Vientiane, Laos. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Vientiane
Temperature in May in Vientiane over the years
Precipitation charts
These charts show the average amount of precipitation in May in Vientiane, Laos. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Vientiane
Total precipitation in May in Vientiane over the years
Daily UV index in May in Vientiane
This chart shows the average daily UV index in May in Vientiane, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Vientiane
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Average weather in Vientiane by month
Click on a month below to see detailed weather info for Vientiane. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.