Laos weather in September 2019

  • 32°C maximum daytime temperature in September in Laos (Vientiane)32
    32°C max day temperature
  • 5 hours of sunshine per day (42% of daylight hours) in September in Laos5
    5 hours of sunshine per day
  • 20 days with some rainfall in September in Laos (Vientiane)20
    20 days with some rainfall
  • 24°C minimum night-time temperature in September in Laos (Vientiane)24
    24°C min night temperature
  • 12 hours of daylight per day in September in Laos (Vientiane)12
    12 hours of daylight per day
  • Very high heat & humidity in September in Laos (Vientiane)VH
    Very High heat & humidity
  • 278 mm monthly rainfall in September in Laos (Vientiane)278
    278 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Laos (Vientiane)11
    11+ (Extreme) UV index

Going to Laos? Find the best month to visit Laos based on the weather.

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Expect 32°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Laos in September. Check more long-term weather averages for Laos in September before you book your next holiday to Laos in 2019/2020. The September weather averages shown above are for Vientiane.

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More about Laos

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The September weather guide for Laos, represented by Vientiane, 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.

Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Laos weather in September

The average maximum daytime temperature in Laos in September is a hot 32°C (90°F) with very high heat & humidity. The average night-time temperature is usually a warm 24°C (75°F). There are usually 5 hours of bright sunshine each day, which represents 42% of the 12 hours of daylight.

Expect 278mm (10.9 inches) of rainfall across the whole of September with 20 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.

The weather in Laos in September is represented by Vientiane.

Laos sunrise & sunset times for September 2019

Browse the sunrise & sunset times for Laos in September 2019. Select a month to view Laos sunrise & sunset times for the next twelve months. The Laos sunrise & sunset times shown below are for Vientiane.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2019 05:55 18:24
Monday, 2nd September 2019 05:55 18:23
Tuesday, 3rd September 2019 05:56 18:22
Wednesday, 4th September 2019 05:56 18:22
Thursday, 5th September 2019 05:56 18:21
Friday, 6th September 2019 05:56 18:20
Saturday, 7th September 2019 05:56 18:19
Sunday, 8th September 2019 05:56 18:18
Monday, 9th September 2019 05:56 18:17
Tuesday, 10th September 2019 05:57 18:17
Wednesday, 11th September 2019 05:57 18:16
Thursday, 12th September 2019 05:57 18:15
Friday, 13th September 2019 05:57 18:14
Saturday, 14th September 2019 05:57 18:13
Sunday, 15th September 2019 05:57 18:12
Monday, 16th September 2019 05:57 18:11
Tuesday, 17th September 2019 05:58 18:11
Wednesday, 18th September 2019 05:58 18:10
Thursday, 19th September 2019 05:58 18:09
Friday, 20th September 2019 05:58 18:08
Saturday, 21st September 2019 05:58 18:07
Sunday, 22nd September 2019 05:58 18:06
Monday, 23rd September 2019 05:59 18:05
Tuesday, 24th September 2019 05:59 18:05
Wednesday, 25th September 2019 05:59 18:04
Thursday, 26th September 2019 05:59 18:03
Friday, 27th September 2019 05:59 18:02
Saturday, 28th September 2019 05:59 18:01
Sunday, 29th September 2019 05:59 18:00
Monday, 30th September 2019 06:00 18:00
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