Colombo, Western, Sri Lanka Climate Change Severity

33
Moderate
The current climate change severity in Colombo is Moderate, with a 25.2% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Colombo 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), Colombo temperature has changed by around -2.02%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
178
-52.9%
cloudyCloudy
1910
-47.3%
rainyRainy
234151
-35.4%
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, Colombo has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (within the Moderate severity category). This suggests improving climate conditions compared to previous years. Here’s a breakdown of the specific changes observed:

Severity Score

33/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Colombo experienced significant changes:

Temperature change of

-0.5 °C

Variation in annual rainfall

+13.02 %

Change in average humidity

+2.6 %

PM2.5 levels surged by

+12.1 %

Heatwave changed by

-7.6 day(s)

Coldwave changed by

+4.4 day(s)

Wind speeds changed by

+0.9 km/h

These indicators show reduced climate volatility, offering a valuable window to reinforce sustainable practices and strengthen long-term climate resilience. As the severity shifts toward Moderate, it is important to maintain momentum in climate adaptation efforts.

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

Colombo Weather Forecast 30 Days (October - November 2025)
Colombo, Western, Sri Lanka

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Wed. 15, Oct.
moderate rainModerate rain
Temperature Icon29°/26°
Humidity Icon80%
Wind Icon13km/h
Thu. 16, Oct.
moderate rainModerate rain
Temperature Icon28°/26°
Humidity Icon84%
Wind Icon30km/h
Fri. 17, Oct.
heavy rainHeavy rain
Temperature Icon28°/26°
Humidity Icon83%
Wind Icon17km/h
Sat. 18, Oct.
moderate rainModerate rain
Temperature Icon28°/25°
Humidity Icon81%
Wind Icon19km/h
Sun. 19, Oct.
moderate rainModerate rain
Temperature Icon29°/25°
Humidity Icon81%
Wind Icon10km/h
Mon. 20, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/24°
Humidity Icon82%
Wind Icon16km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/24°
Humidity Icon80%
Wind Icon12km/h
Wed. 22, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/26°
Humidity Icon75%
Wind Icon12km/h
Thu. 23, Oct.
moderate rainModerate rain
Temperature Icon28°/25°
Humidity Icon81%
Wind Icon19km/h
Fri. 24, Oct.
moderate rainModerate rain
Temperature Icon26°/25°
Humidity Icon86%
Wind Icon28km/h
Sat. 25, Oct.
moderate rainModerate rain
Temperature Icon28°/26°
Humidity Icon81%
Wind Icon24km/h
Sun. 26, Oct.
moderate rainModerate rain
Temperature Icon26°/25°
Humidity Icon89%
Wind Icon17km/h
Mon. 27, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/26°
Humidity Icon81%
Wind Icon21km/h
Tue. 28, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/26°
Humidity Icon81%
Wind Icon24km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon81%
Wind Icon15km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon82%
Wind Icon14km/h
Fri. 31, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon82%
Wind Icon15km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon81%
Wind Icon14km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon79%
Wind Icon12km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon81%
Wind Icon13km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon81%
Wind Icon12km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon82%
Wind Icon14km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon81%
Wind Icon14km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/24°
Humidity Icon82%
Wind Icon13km/h
Sat. 8, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon81%
Wind Icon14km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon29°/25°
Humidity Icon81%
Wind Icon16km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/24°
Humidity Icon79%
Wind Icon16km/h
Wed. 12, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon79%
Wind Icon14km/h
Thu. 13, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon81%
Wind Icon14km/h
Fri. 14, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon30°/25°
Humidity Icon80%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onFri. 14, Nov.

30°C

Low will be onTue. 21, Oct.

23.5°C

HumidityHumidity

High will be onSun. 26, Oct.

89%

Low will be onWed. 22, Oct.

75%

Wind SpeedWind Speed

High will be onThu. 16, Oct.

30.2km/h

Low will be onSun. 19, Oct.

10.1km/h

PrecipitationPrecipitation

High will be onFri. 31, Oct.

25.1mm

Low will be onTue. 21, Oct.

0.3mm

Ultraviolet IndexUV

High will be onMon. 20, Oct.

6

Low will be onFri. 17, Oct.

0.8

Our Blogs

18 Sept 2025

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort
13 Sept 2025

What’s the Connection Between Air Pollution and Blood Cancer?

What’s the Connection Between Air Pollution and Blood Cancer?
9 Sept 2025

Mercury Air Pollution in Delhi: What You’re Inhaling Without Knowing

Mercury Air Pollution in Delhi: What You’re Inhaling Without Knowing
3 Sept 2025

India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?

India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?
28 Aug 2025

No Clean Air Day in Delhi 2025: Why Even Monsoon Could Not Help?

No Clean Air Day in Delhi 2025: Why Even Monsoon Could Not Help?
21 Aug 2025

Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 

Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 
19 Aug 2025

Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025
13 Aug 2025

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?
12 Aug 2025

How Air Pollution Damages Your Long-Term Financial Health?

How Air Pollution Damages Your Long-Term Financial Health?
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