Vientiane, Chanthabuly District, Laos Climate Change Severity

62
Very High
The current climate change severity in Vientiane is Very High, with a 32.1% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (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 -3.4%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Oct. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
6166
8.1%
cloudyCloudy
4732
-31.9%
rainyRainy
18881
-56.9%
snowySnowy
00
0%
mistyMisty
01
100%

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 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Vientiane experienced significant changes:

Temperature change of

-0.9 °C

Variation in annual rainfall

-5.2 %

Change in average humidity

+2.8 %

PM2.5 levels surged by

-53.4 %

Heatwave changed by

-10.2 day(s)

Coldwave changed by

+9.2 day(s)

Wind speeds changed by

+2.2 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Vientiane's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Vientiane Weather Forecast 30 Days (November - December 2025)
Vientiane, Chanthabuly District, Laos

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 21, Nov.
sunnySunny
Temperature Icon25°/15°
Humidity Icon70%
Wind Icon7km/h
Sat. 22, Nov.
sunnySunny
Temperature Icon26°/15°
Humidity Icon69%
Wind Icon7km/h
Sun. 23, Nov.
sunnySunny
Temperature Icon27°/16°
Humidity Icon71%
Wind Icon5km/h
Mon. 24, Nov.
sunnySunny
Temperature Icon29°/18°
Humidity Icon72%
Wind Icon6km/h
Tue. 25, Nov.
partly cloudyPartly Cloudy
Temperature Icon26°/19°
Humidity Icon65%
Wind Icon18km/h
Wed. 26, Nov.
sunnySunny
Temperature Icon25°/16°
Humidity Icon62%
Wind Icon8km/h
Thu. 27, Nov.
sunnySunny
Temperature Icon24°/14°
Humidity Icon58%
Wind Icon7km/h
Fri. 28, Nov.
sunnySunny
Temperature Icon24°/13°
Humidity Icon52%
Wind Icon4km/h
Sat. 29, Nov.
sunnySunny
Temperature Icon26°/14°
Humidity Icon59%
Wind Icon5km/h
Sun. 30, Nov.
sunnySunny
Temperature Icon26°/15°
Humidity Icon60%
Wind Icon5km/h
Mon. 1, Dec.
sunnySunny
Temperature Icon26°/16°
Humidity Icon64%
Wind Icon5km/h
Tue. 2, Dec.
sunnySunny
Temperature Icon26°/18°
Humidity Icon65%
Wind Icon10km/h
Wed. 3, Dec.
sunnySunny
Temperature Icon25°/17°
Humidity Icon57%
Wind Icon10km/h
Thu. 4, Dec.
sunnySunny
Temperature Icon24°/14°
Humidity Icon64%
Wind Icon7km/h
Fri. 5, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon29°/18°
Humidity Icon65%
Wind Icon9km/h
Sat. 6, Dec.
sunnySunny
Temperature Icon29°/18°
Humidity Icon64%
Wind Icon8km/h
Sun. 7, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon29°/18°
Humidity Icon63%
Wind Icon8km/h
Mon. 8, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon28°/18°
Humidity Icon65%
Wind Icon9km/h
Tue. 9, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon28°/18°
Humidity Icon66%
Wind Icon8km/h
Wed. 10, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon29°/18°
Humidity Icon65%
Wind Icon7km/h
Thu. 11, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon30°/19°
Humidity Icon64%
Wind Icon8km/h
Fri. 12, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon29°/19°
Humidity Icon64%
Wind Icon8km/h
Sat. 13, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon29°/18°
Humidity Icon64%
Wind Icon8km/h
Sun. 14, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon30°/18°
Humidity Icon65%
Wind Icon8km/h
Mon. 15, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon30°/19°
Humidity Icon64%
Wind Icon8km/h
Tue. 16, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon28°/18°
Humidity Icon64%
Wind Icon12km/h
Wed. 17, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon26°/17°
Humidity Icon62%
Wind Icon10km/h
Thu. 18, Dec.
sunnySunny
Temperature Icon27°/16°
Humidity Icon60%
Wind Icon9km/h
Fri. 19, Dec.
sunnySunny
Temperature Icon27°/16°
Humidity Icon62%
Wind Icon8km/h
Sat. 20, Dec.
sunnySunny
Temperature Icon28°/15°
Humidity Icon61%
Wind Icon8km/h
Sun. 21, Dec.
patchy rain possiblePatchy rain possible
Temperature Icon28°/16°
Humidity Icon60%
Wind Icon8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 14, Dec.

29.7°C

Low will be onFri. 28, Nov.

13.3°C

HumidityHumidity

High will be onMon. 24, Nov.

72%

Low will be onFri. 28, Nov.

52%

Wind SpeedWind Speed

High will be onTue. 25, Nov.

17.6km/h

Low will be onFri. 28, Nov.

4.3km/h

PrecipitationPrecipitation

High will be onTue. 16, Dec.

4.3mm

Low will be onTue. 25, Nov.

0.07mm

Ultraviolet IndexUV

High will be onTue. 25, Nov.

6

Low will be onFri. 21, Nov.

1.8

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