Vientiane, Laos, a region in Laos, typically experiences very warm weather in September, with maximum daytime temperatures around 33°C (91°F) and nighttime temperatures around 25°C (77°F) in Vientiane.
Discover the typical September temperatures for the most popular locations of Vientiane on the map below. Detailed insights are just a click away.
Pick a month to see the average temperature, rainfall and sunshine in Vientiane - and find the best time to visit. See also: Vientiane weather by month.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Vientiane.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Average daytime highs in Vientiane, Laos during September reach about 33°C (91°F) in Vientiane.
After dark, Vientiane cools to about 25°C (77°F) on an average September night.
Most areas experience a moderate amount of sunshine, with approximately 168 hours of sunlight expected in Vientiane. This makes it neither too gloomy nor overly bright.
We have much more information about the climate in Vientiane.
Weather and climate has detailed information for every country in the world. Are you going to Laos? Get detailed historical weather averages for many cities in Laos.
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