Ko Samui, Surat Thani, Thailand Climate Change Severity

57
High
The current climate change severity in Ko Samui is High, with a 15.6% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Ko Samui 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), Ko Samui temperature has changed by around -0.9%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
2016
-20%
cloudyCloudy
299
-68.9%
rainyRainy
160139
-13.1%
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, Ko Samui 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, Ko Samui experienced significant changes:

Temperature change of

-0.2 °C

Variation in annual rainfall

-0.6 %

Change in average humidity

-1.5 %

PM2.5 levels surged by

-29.3 %

Heatwave changed by

-4.8 day(s)

Coldwave changed by

-15.4 day(s)

Wind speeds changed by

+4.1 km/h

These indicators show that Ko Samui 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 Jul.

Ko Samui Weather Forecast 30 Days (August - September 2025)
Ko Samui, Surat Thani, Thailand

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 10, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/28°
Humidity Icon74%
Wind Icon32km/h
Mon. 11, Aug.
heavy rainHeavy rain
Temperature Icon28°/27°
Humidity Icon75%
Wind Icon30km/h
Tue. 12, Aug.
partly cloudyPartly Cloudy
Temperature Icon28°/27°
Humidity Icon73%
Wind Icon45km/h
Wed. 13, Aug.
moderate rainModerate rain
Temperature Icon28°/26°
Humidity Icon74%
Wind Icon34km/h
Thu. 14, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/27°
Humidity Icon72%
Wind Icon24km/h
Fri. 15, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/28°
Humidity Icon71%
Wind Icon28km/h
Sat. 16, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/28°
Humidity Icon70%
Wind Icon34km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/27°
Humidity Icon74%
Wind Icon30km/h
Mon. 18, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/28°
Humidity Icon72%
Wind Icon33km/h
Tue. 19, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/28°
Humidity Icon68%
Wind Icon32km/h
Wed. 20, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/28°
Humidity Icon69%
Wind Icon15km/h
Thu. 21, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/27°
Humidity Icon71%
Wind Icon25km/h
Fri. 22, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/27°
Humidity Icon72%
Wind Icon17km/h
Sat. 23, Aug.
moderate rainModerate rain
Temperature Icon26°/24°
Humidity Icon78%
Wind Icon19km/h
Sun. 24, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon19km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/28°
Humidity Icon75%
Wind Icon22km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/28°
Humidity Icon75%
Wind Icon22km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon21km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/28°
Humidity Icon75%
Wind Icon21km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon74%
Wind Icon20km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon74%
Wind Icon18km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon74%
Wind Icon18km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon74%
Wind Icon19km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/28°
Humidity Icon74%
Wind Icon19km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon20km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/28°
Humidity Icon75%
Wind Icon20km/h
Fri. 5, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon22km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon74%
Wind Icon21km/h
Sun. 7, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon20km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon20km/h
Tue. 9, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/27°
Humidity Icon75%
Wind Icon20km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 10, Aug.

30°C

Low will be onSat. 23, Aug.

23.7°C

HumidityHumidity

High will be onSat. 23, Aug.

78%

Low will be onTue. 19, Aug.

68%

Wind SpeedWind Speed

High will be onTue. 12, Aug.

44.6km/h

Low will be onWed. 20, Aug.

15.1km/h

PrecipitationPrecipitation

High will be onMon. 11, Aug.

20.9mm

Low will be onTue. 12, Aug.

0.02mm

Ultraviolet IndexUV

High will be onThu. 14, Aug.

6

Low will be onMon. 11, Aug.

1.2

Our Blogs

7 Aug 2025

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate
6 Aug 2025

DU Cut-Off 2025: How’s the Air Near Your Dream College?

DU Cut-Off 2025: How’s the Air Near Your Dream College?
1 Aug 2025

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?
31 Jul 2025

Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels
26 Jul 2025

New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)
26 Jul 2025

Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?
24 Jul 2025

Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India

Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India
19 Jul 2025

What Is the Real Impact of Air Pollution on Property Rates in India?

What Is the Real Impact of Air Pollution on Property Rates in India?
15 Jul 2025

Do People Really Consider Air Pollution Before Moving to Delhi NCR?

Do People Really Consider Air Pollution Before Moving to Delhi NCR?
12 Jul 2025

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?