Vientiane, Laos Weather

  1. Vientiane, Laos Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Vientiane over the next 12 hours
  7. Temperature and possibility of rain in Vientiane in the coming days
  8. Rainfall in Vientiane in the coming days
  9. Vientiane Weather Summary
  10. Weather averages by month
  11. Vientiane's weather
  12. Frequently asked questions
  13. Comments
Vientiane, Weather
(Photo by Life on the road on Unsplash)

Current conditions

Updated:
23°C
73.4°F
°C °F

Condition: Clear Sky

Pressure: 995 hPa

Feel like: 28 °C

Temperature: 23°C

Cloud: 0%

Humidity: 88%

Wind: NNW - 3 km/h

Visibility: 16.34 km

Weather forecast

Tue
13 Oct
22°C / 31°C
Drizzle
Wed
14 Oct
23°C / 29°C
Slight Thunderstorm
Thu
15 Oct
22°C / 28°C
Drizzle Dense Intensity
Fri
16 Oct
22°C / 29°C
Slight Thunderstorm
Sat
17 Oct
23°C / 30°C
Slight Thunderstorm
Hourly forecast today:
18:00 PM
22° / 23°
22° / 23°
Clear Sky
88% 5 km/h
19:00 PM
21° / 23°
21° / 23°
Clear Sky
88% 5 km/h
20:00 PM
21° / 24°
21° / 24°
Clear Sky
84% 3 km/h
21:00 PM
21° / 23°
21° / 23°
Clear Sky
84% 2 km/h
22:00 PM
21° / 23°
21° / 23°
Clear Sky
86% 1 km/h
23:00 PM
20° / 22°
20° / 22°
Mainly Clear
89% 4 km/h
00:00 AM
21° / 24°
21° / 24°
Partly Cloudy
87% 7 km/h
01:00 AM
22° / 26°
22° / 26°
Partly Cloudy
76% 9 km/h
02:00 AM
22° / 28°
22° / 28°
Mainly Clear
71% 10 km/h
03:00 AM
22° / 29°
22° / 29°
Mainly Clear
65% 11 km/h
04:00 AM
21° / 30°
21° / 30°
Mainly Clear
59% 15 km/h

30 Day Averages and Extremes

  • Average high 29.97°C
  • Average low 22.4°C
  • Hottest day 33°C (30 September 2026)
  • Coldest day 18°C (25 October 2026)
  • Average humidity 79.17%
  • Days with precipitation 28 days
  • Highest precipitation 70 mm (27 September 2026)

Yesterday's Data

  • Max: 30°C
  • Min: 22°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Vientiane over the next 12 hours

Temperature and possibility of rain in Vientiane in the coming days

Rainfall in Vientiane in the coming days

Vientiane Climate Summary

Vientiane features a Tropical wet and dry or savanna (Köppen classification: Aw), with an average annual temperature of 28.39ºC (83.1ºF), which is about 3.0% higher than the national average for Laos. Annually, the city experiences approximately 91.73 millimeters (3.61 inches) of rainfall, spread across 129.54 rainy days, accounting for 35.49% of the year.

Longitude 18.110541
Latitude 102.5298028
Yearly high temperature 32.14ºC (89.85ºF)
Yearly low temperature 22.6ºC (72.68ºF)
Hottest month April 37.48ºC (99.46ºF)
Coldest month January 17.6ºC (63.68ºF)
Yearly precip 91.73mm (3.61in)
Days with rainfall 129.54 days (35.49%)
Driest month February (46.67%)
Wettest month August (83.66%)

Weather averages by month

Month High / Low (°C) Rain
January 29.06° / 17.6° 1.73 days
February 33.04° / 20.19° 1.27 days
March 35.81° / 24.1° 4.45 days
April 37.48° / 26.45° 7.73 days
May 35.33° / 26.48° 16.45 days
June 32.43° / 25.28° 18.36 days
July 30.9° / 24.34° 22.82 days
August 30.63° / 23.97° 22.0 days
September 31.25° / 23.53° 21.64 days
October 30.66° / 21.78° 9.91 days
November 30.55° / 20.24° 2.45 days
December 28.56° / 17.21° 0.73 days

Vientiane's weather

Frequently asked questions

1. What is the hottest month in Vientiane?

April has the highest average monthly temperature (daily mean of 37.48ºC) and January are the coolest (daily mean of 17.6ºC).

2. What should I wear in Vientiane today?

For today's very hot weather in Vientiane, with the high temperatures above 31ºC (87.8ºF), consider wearing:
- Sleeveless tops or vests
- Ultra-thin, breathable socks
- Broad-brimmed sun hat
- UV-blocking sunglasses

Temperature

Early
22°C / 28°C
Morning
21°C / 30°C
Afternoon
22°C / 25°C
Evening
21°C / 23°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 505
  • CO 320
  • NH3 0
  • NO2 19
  • O3 49
  • PM10 38
  • PM25 38
  • SO2 9
  • CH4 1,674

Sunrise / Sunset

23:02
10:49