Vientiane weather in September 2021

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  • 32°C maximum daytime temperature in September in Vientiane32
    32°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in September in Vientiane20
    20 days with some rainfall
  • 24°C minimum night-time temperature in September in Vientiane24
    24°C min night temperature
  • 12 hours of daylight per day in September in Vientiane12
    12 hours of daylight per day
  • Very high heat & humidity in September in VientianeVH
    Very High heat & humidity
  • 278 mm monthly rainfall in September in Vientiane278
    278 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Vientiane11
    11+ (Extreme) UV index

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The September weather guide for Vientiane, Laos shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in Vientiane in September?

Daytime temperatures usually reach 32°C in Vientiane in September with very high heat and humidity, falling to 24°C at night.

How sunny is it in Vientiane in September?

There are normally 5 hours of bright sunshine each day in Vientiane in September - that's 42% of daylight hours.

Does it rain in Vientiane in September?

There are usually 20 days with some rain in Vientiane in September and the average monthly rainfall is 278mm.

What is the chance of a typhoon in Vientiane in September?

On average 1.2 days in September in Vientiane are likely to be affected by the passage of one or more tropical storms.

Vientiane sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Vientiane in September 2021. Select a month to view Vientiane sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 05:55 18:24
Wednesday, 15th September 2021 05:57 18:12
Thursday, 30th September 2021 06:00 17:59
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where is hot in Laos in September for 2021/2022?

Below are average maximum temperatures at popular destinations in Laos in September. Select a destination to see more weather parameters.

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