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:
27°C
80.6°F
°C °F

Condition: Clear Sky

Pressure: 986 hPa

Feel like: 31 °C

Temperature: 27°C

Cloud: 6%

Humidity: 77%

Wind: W - 9 km/h

Visibility: 31.44 km

Weather forecast

Fri
14 Aug
23°C / 29°C
Thunderstorm With Slight
Sat
15 Aug
23°C / 27°C
Slight Thunderstorm
Sun
16 Aug
23°C / 31°C
Slight Thunderstorm
Mon
17 Aug
24°C / 31°C
Slight Thunderstorm
Tue
18 Aug
24°C / 26°C
Slight Thunderstorm
Hourly forecast today:
01:00 AM
23° / 27°
23° / 27°
Clear Sky
77% 20 km/h
02:00 AM
23° / 28°
23° / 28°
Clear Sky
73% 28 km/h
03:00 AM
23° / 29°
23° / 29°
Mainly Clear
70% 33 km/h
04:00 AM
23° / 31°
23° / 31°
Overcast
65% 37 km/h
05:00 AM
23° / 30°
23° / 30°
Mainly Clear
65% 37 km/h
06:00 AM
23° / 31°
23° / 31°
Clear Sky
62% 38 km/h
07:00 AM
23° / 32°
23° / 32°
Mainly Clear
60% 34 km/h
08:00 AM
24° / 32°
24° / 32°
Mainly Clear
61% 33 km/h
09:00 AM
23° / 32°
23° / 32°
Mainly Clear
60% 30 km/h
10:00 AM
25° / 30°
25° / 30°
Slight Thunderstorm
73% 27 km/h
11:00 AM
25° / 29°
25° / 29°
Drizzle
80% 20 km/h

30 Day Averages and Extremes

  • Average high 27.57°C
  • Average low 22.8°C
  • Hottest day 32°C (09 August 2026)
  • Coldest day 0°C (26 August 2026)
  • Average humidity 88.17%
  • Days with precipitation 30 days
  • Highest precipitation 95 mm (04 August 2026)

Yesterday's Data

  • Max: 32°C
  • Min: 24°C
  • Total Precipitation: 1 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:
- Broad-brimmed sun hat
- Ultra-thin, breathable socks
- Airy sandals or flip-flops
- Light, natural fabrics (like cotton or linen)

Temperature

Early
23°C / 29°C
Morning
23°C / 32°C
Afternoon
25°C / 26°C
Evening
23°C / 24°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 453
  • CO 131
  • NH3 0
  • NO2 3
  • O3 39
  • PM10 2
  • PM25 2
  • SO2 4
  • CH4 1,430

Sunrise / Sunset

22:51
11:37