Vientiane

Vientiane Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Vientiane, Laos in September.

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Vientiane

Planning a trip to Vientiane, Laos this September? Here's what you need to know about the weather:

What to Expect in Vientiane in September

Vientiane, Laos is a region in Laos. September in Vientiane generally has very warm temperatures, with heavy precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 33°C (91°F) and nighttime temperatures around 25°C (77°F) in Vientiane. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

For a closer look at conditions across Vientiane, Laos, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 309 mm (12 in) in Vientiane.

Average sunshine

Sunshine is fairly consistent across many areas. Vientiane receives about 168 hours of sunlight in September, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Vientiane by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Vientiane in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Vientiane.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Vientiane

What is the weather like in September for the most popular destinonation in Vientiane, Laos?

Vientiane

In September Vientiane generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
33°C (91°F)
33°C (91°F)
33°C (91°F)
Min temperature
25°C (77°F)
25°C (77°F)
24°C (75°F)
Monthly sun hours
135 hours
168 hours
211 hours
Monthly rainfall
399 mm (16 in)
309 mm (12 in)
105 mm (4.1 in)
Monthly rainy days
24 days
20 days
10 days
Weather conditions
poor
poor
tolerable
Climate in Vientiane →

Is your destination not in the list? Have a look at all destinations in Vientiane, in Laos.

Vientiane weather in September: frequently asked questions

What is the weather like in Vientiane, Laos in September?

Expect poor weather across Vientiane, Laos in September. The popular destination of Vientiane averages 33°C (91°F) by day and 25°C (77°F) at night during this month.

What is the average temperature in Vientiane, Laos in September?

Daytime temperatures in Vientiane peak at roughly 33°C (91°F) in September, dropping to about 25°C (77°F) overnight.

Does Vientiane, Laos get a lot of rain in September?

Yes. September brings heavy rainfall to Vientiane, Laos, with Vientiane averaging around 309 mm (12 in). Expect frequent showers and pack accordingly.

Is September a Good Time to Visit Vientiane, Laos?

Given the typically poor weather conditions in Vientiane, September may not be the ideal time to visit Vientiane, Laos.

Generally speaking, the best visiting conditions can be found in January, November and December offering mostly pleasant weather in Vientiane. On the other hand, the weather in March, April, May, June, July, August, September and October tend to be poor.

Interested in more climate information?

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.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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