Vientiane, Viangchan, Laos Climate Change Severity

57
High
The current climate change severity in Vientiane is High, with a 11.3% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Apr. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Vientiane Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Vientiane temperature has changed by around -3.08%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
9165
-28.5%
cloudyCloudy
6922
-68.1%
rainyRainy
19525
-87.1%
snowySnowy
00
0%
mistyMisty
00
0%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Vientiane has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Vientiane experienced significant changes:

Temperature change of

-0.97 °C

Variation in annual rainfall

-30.47 %

Change in average humidity

-2.14 %

PM2.5 levels surged by

-47.55 %

Heatwave changed by

-3 Days

Coldwave changed by

0 Day

Wind speeds changed by

+3.27 km/h

These indicators show that Vientiane is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Apr.

Vientiane Weather Forecast 30 Days (September - October 2026)
Vientiane, Viangchan, Laos

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Tue. 29, Sep.
light rain showerRain Shower
Temperature Icon29°/22°
Humidity Icon88%
Wind Icon6.8km/h
Wed. 30, Sep.
overcastOvercast
Temperature Icon31°/23°
Humidity Icon81%
Wind Icon5.8km/h
Thu. 1, Oct.
overcastOvercast
Temperature Icon32°/24°
Humidity Icon79%
Wind Icon7.6km/h
Fri. 2, Oct.
light rain showerRain Shower
Temperature Icon30°/25°
Humidity Icon88%
Wind Icon5.8km/h
Sat. 3, Oct.
light rain showerRain Shower
Temperature Icon29°/24°
Humidity Icon88%
Wind Icon4.7km/h
Sun. 4, Oct.
thundery outbreaks possibleThundery outbreaks in nearby
Temperature Icon30°/24°
Humidity Icon85%
Wind Icon5km/h
Mon. 5, Oct.
light rain showerRain Shower
Temperature Icon25°/22°
Humidity Icon95%
Wind Icon12.6km/h
Tue. 6, Oct.
light rain showerRain Shower
Temperature Icon25°/22°
Humidity Icon92%
Wind Icon4.7km/h
Wed. 7, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/23°
Humidity Icon80%
Wind Icon8km/h
Thu. 8, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/23°
Humidity Icon80%
Wind Icon7.5km/h
Fri. 9, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/23°
Humidity Icon80%
Wind Icon7.8km/h
Sat. 10, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/23°
Humidity Icon79%
Wind Icon8.8km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon80%
Wind Icon8.3km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/22°
Humidity Icon79%
Wind Icon7.7km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/22°
Humidity Icon79%
Wind Icon7.1km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/23°
Humidity Icon81%
Wind Icon7.1km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon29°/23°
Humidity Icon84%
Wind Icon8.6km/h
Fri. 16, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon82%
Wind Icon8.8km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon29°/22°
Humidity Icon82%
Wind Icon7.9km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon81%
Wind Icon7.3km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon79%
Wind Icon8.2km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/22°
Humidity Icon77%
Wind Icon7.3km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon31°/22°
Humidity Icon79%
Wind Icon7.6km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon78%
Wind Icon7.8km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon76%
Wind Icon7.8km/h
Sat. 24, Oct.
heavy rain at timesHeavy Rain
Temperature Icon30°/22°
Humidity Icon78%
Wind Icon7.3km/h
Sun. 25, Oct.
heavy rain at timesHeavy Rain
Temperature Icon30°/22°
Humidity Icon78%
Wind Icon7.4km/h
Mon. 26, Oct.
heavy rain at timesHeavy Rain
Temperature Icon31°/22°
Humidity Icon78%
Wind Icon7.4km/h
Tue. 27, Oct.
moderate rain at timesRain
Temperature Icon31°/22°
Humidity Icon77%
Wind Icon8.4km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon77%
Wind Icon8km/h
Thu. 29, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon30°/22°
Humidity Icon77%
Wind Icon9.9km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 1, Oct.

32°C

Low will be onTue. 29, Sep.

22°C

HumidityHumidity

High will be onMon. 5, Oct.

95%

Low will be onFri. 23, Oct.

76%

Wind SpeedWind Speed

High will be onMon. 5, Oct.

12.6km/h

Low will be onSat. 3, Oct.

4.7km/h

PrecipitationPrecipitation

High will be onMon. 5, Oct.

30.9mm

Low will be onWed. 30, Sep.

0.1mm

Ultraviolet IndexUV

High will be onThu. 1, Oct.

11.1

Low will be onMon. 5, Oct.

5

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