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Vientiane Laos
Weather in September
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Weather in September in Vientiane

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

What is the weather like in Vientiane in September?

Vientiane 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 and nighttime temperatures around 25°C in Vientiane. To learn more about the conditions in specific areas of Vientiane in September, check out the map below. 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, refer to the map below.

Precipitation

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

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 168 hours of sunlight anticipated in Vientiane. This ensures the days are neither too dim nor excessively sunny.

For more details on the yearly climate, visit our Vientiane climate page.

Where to go in Vientiane in September

Find more information for the most popular destinations in the Vientiane on the map below. Click on a destination dot for more details.

Weather conditions Weather
Temperatures
Precipitation
Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Laos, check out our Vientiane's climate page.

Popular destinations

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

Vientiane

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

Vientiane
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
33°C 
25°C 
135 hours 
399 mm 
24 days 
poor 
September September
33°C 
25°C 
168 hours 
309 mm 
20 days 
poor 
October   >> October
>>  
33°C 
24°C 
211 hours 
105 mm 
10 days 
tolerable 
Climate in Vientiane

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

Is September the best time to visit Vientiane?

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

Generally speaking, the best visiting conditions can be found in January, February, November and December offering mostly perfect weather in Vientiane. On the other hand, the weather in April, May, June, July, August and September 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.