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:
40°C
104.0°F
°C °F

Condition: Partly Cloudy

Pressure: 983 hPa

Feel like: 40 °C

Temperature: 40°C

Cloud: 49%

Humidity: 18%

Wind: SW - 7 km/h

Visibility: 24.14 km

Weather forecast

Thu
16 Apr
27°C / 41°C
Drizzle
Fri
17 Apr
25°C / 41°C
Drizzle
Sat
18 Apr
24°C / 40°C
Drizzle
Sun
19 Apr
25°C / 40°C
Moderate Drizzle
Mon
20 Apr
25°C / 34°C
Drizzle
Hourly forecast today:
09:00 AM
11° / 40°
11° / 40°
Partly Cloudy
18% 24 km/h
10:00 AM
14° / 38°
14° / 38°
Mainly Clear
23% 20 km/h
11:00 AM
15° / 36°
15° / 36°
Mainly Clear
29% 17 km/h
12:00 PM
16° / 33°
16° / 33°
Mainly Clear
35% 14 km/h
13:00 PM
16° / 32°
16° / 32°
Mainly Clear
39% 11 km/h
14:00 PM
16° / 30°
16° / 30°
Mainly Clear
42% 10 km/h
15:00 PM
16° / 29°
16° / 29°
Mainly Clear
43% 9 km/h
16:00 PM
15° / 29°
15° / 29°
Mainly Clear
42% 8 km/h
17:00 PM
14° / 29°
14° / 29°
Mainly Clear
40% 8 km/h
18:00 PM
14° / 29°
14° / 29°
Mainly Clear
39% 7 km/h
19:00 PM
13° / 29°
13° / 29°
Partly Cloudy
39% 6 km/h

30 Day Averages and Extremes

  • Average high 37.4°C
  • Average low 25.5°C
  • Hottest day 41°C (14 April 2026)
  • Coldest day 23°C (23 April 2026)
  • Average humidity 52.27%
  • Days with precipitation 12 days
  • Highest precipitation 33 mm (22 April 2026)

Yesterday's Data

  • Max: 41°C
  • Min: 28°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 41ºC (105.8ºF), consider wearing:
- Light, natural fabrics (like cotton or linen)
- Lightweight, loose-fitting shorts
- Ultra-thin, breathable socks
- Broad-brimmed sun hat

Temperature

Early
14°C / 36°C
Morning
11°C / 40°C
Afternoon
16°C / 29°C
Evening
13°C / 28°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 0
  • CO 0
  • NH3 0
  • NO2 0
  • O3 0
  • PM10 0
  • PM25 0
  • SO2 0
  • CH4 0

Sunrise / Sunset

22:52
11:26