Vientiane, Viangchan, Laos Climate Change Severity

48
High
The current climate change severity in Vientiane is High, with a 8.7% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to May (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 -1.02%, 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
6923
-66.6%
rainyRainy
19548
-75.3%
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 48 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

48/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Vientiane experienced significant changes:

Temperature change of

-1 °C

Variation in annual rainfall

-19.8 %

Change in average humidity

+0.5 %

PM2.5 levels surged by

-47.7 %

Heatwave changed by

-6.1 day(s)

Coldwave changed by

-0.8 day(s)

Wind speeds changed by

+3.1 km/h

These indicators show improvement in key parametes of climate, but Vientiane remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Vientiane Weather Forecast 30 Days (March - April 2026)
Vientiane, Viangchan, Laos

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sun. 8, Mar.
sunnySunny
Temperature Icon35°/22°
Humidity Icon44%
Wind Icon13.3km/h
Mon. 9, Mar.
sunnySunny
Temperature Icon35°/23°
Humidity Icon45%
Wind Icon24.1km/h
Tue. 10, Mar.
sunnySunny
Temperature Icon33°/23°
Humidity Icon46%
Wind Icon24.1km/h
Wed. 11, Mar.
sunnySunny
Temperature Icon33°/20°
Humidity Icon47%
Wind Icon13km/h
Thu. 12, Mar.
patchy rain possiblePatchy rain nearby
Temperature Icon33°/22°
Humidity Icon54%
Wind Icon20.9km/h
Fri. 13, Mar.
patchy rain possiblePatchy rain nearby
Temperature Icon32°/21°
Humidity Icon42%
Wind Icon19.1km/h
Sat. 14, Mar.
sunnySunny
Temperature Icon32°/20°
Humidity Icon45%
Wind Icon11.5km/h
Sun. 15, Mar.
sunnySunny
Temperature Icon33°/20°
Humidity Icon40%
Wind Icon11.2km/h
Mon. 16, Mar.
sunnySunny
Temperature Icon33°/21°
Humidity Icon43%
Wind Icon11.9km/h
Tue. 17, Mar.
sunnySunny
Temperature Icon34°/22°
Humidity Icon43%
Wind Icon11.2km/h
Wed. 18, Mar.
sunnySunny
Temperature Icon35°/23°
Humidity Icon37%
Wind Icon12.6km/h
Thu. 19, Mar.
sunnySunny
Temperature Icon35°/23°
Humidity Icon43%
Wind Icon10.1km/h
Fri. 20, Mar.
sunnySunny
Temperature Icon36°/23°
Humidity Icon42%
Wind Icon13.7km/h
Sat. 21, Mar.
sunnySunny
Temperature Icon36°/23°
Humidity Icon44%
Wind Icon12.6km/h
Sun. 22, Mar.
sunnySunny
Temperature Icon35°/24°
Humidity Icon47%
Wind Icon9.4km/h
Mon. 23, Mar.
moderate rain at timesModerate rain at times
Temperature Icon34°/24°
Humidity Icon42%
Wind Icon11.9km/h
Wed. 25, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon34°/24°
Humidity Icon46%
Wind Icon12.6km/h
Thu. 26, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon33°/23°
Humidity Icon47%
Wind Icon12.6km/h
Fri. 27, Mar.
moderate rain at timesModerate rain at times
Temperature Icon33°/23°
Humidity Icon47%
Wind Icon11.9km/h
Sat. 28, Mar.
moderate rain at timesModerate rain at times
Temperature Icon33°/23°
Humidity Icon48%
Wind Icon11.2km/h
Sun. 29, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon34°/24°
Humidity Icon47%
Wind Icon11.2km/h
Mon. 30, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon35°/24°
Humidity Icon48%
Wind Icon11.2km/h
Tue. 31, Mar.
heavy rain at timesHeavy rain at times
Temperature Icon35°/24°
Humidity Icon44%
Wind Icon12.6km/h
Wed. 1, Apr.
heavy rain at timesHeavy rain at times
Temperature Icon35°/24°
Humidity Icon44%
Wind Icon11.9km/h
Thu. 2, Apr.
moderate rain at timesModerate rain at times
Temperature Icon34°/24°
Humidity Icon44%
Wind Icon12.2km/h
Sun. 5, Apr.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon36°/25°
Humidity Icon46%
Wind Icon10.8km/h
Mon. 6, Apr.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon35°/25°
Humidity Icon47%
Wind Icon11.5km/h
Tue. 7, Apr.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon34°/25°
Humidity Icon49%
Wind Icon12.2km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 20, Mar.

36°C

Low will be onWed. 11, Mar.

20°C

HumidityHumidity

High will be onThu. 12, Mar.

54%

Low will be onWed. 18, Mar.

37%

Wind SpeedWind Speed

High will be onMon. 9, Mar.

24.1km/h

Low will be onSun. 22, Mar.

9.4km/h

PrecipitationPrecipitation

High will be onThu. 12, Mar.

3.5mm

Low will be onWed. 11, Mar.

0.02mm

Ultraviolet IndexUV

High will be onSat. 14, Mar.

7

Low will be onTue. 10, Mar.

2.2

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