Guelph, Ontario, Canada Climate Change Severity

48
High
The current climate change severity in Guelph is High, with a 2.8% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Guelph 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), Guelph temperature has changed by around -3.4%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
2916
-44.8%
cloudyCloudy
5835
-39.6%
rainyRainy
10278
-23.5%
snowySnowy
1117
54.5%
mistyMisty
07
100%

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

Climate Change Indicators:

Over the past 15 years, Guelph 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, Guelph experienced significant changes:

Temperature change of

-0.2 °C

Variation in annual rainfall

+43.7 %

Change in average humidity

+0.1 %

PM2.5 levels surged by

-13.4 %

Heatwave changed by

-1.3 day(s)

Coldwave changed by

-3.4 day(s)

Wind speeds changed by

+3.03 km/h

These indicators show improvement in key parametes of climate, but Guelph 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 Aug.

Guelph Weather Forecast 30 Days (September - October 2025)
Guelph, Ontario, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 2, Sep.
cloudyCloudy
Temperature Icon25°/12°
Humidity Icon67%
Wind Icon16km/h
Wed. 3, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/12°
Humidity Icon70%
Wind Icon31km/h
Thu. 4, Sep.
heavy rainHeavy rain
Temperature Icon18°/12°
Humidity Icon82%
Wind Icon24km/h
Fri. 5, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/10°
Humidity Icon83%
Wind Icon28km/h
Sat. 6, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/7°
Humidity Icon70%
Wind Icon28km/h
Sun. 7, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/8°
Humidity Icon69%
Wind Icon27km/h
Mon. 8, Sep.
sunnySunny
Temperature Icon18°/5°
Humidity Icon62%
Wind Icon12km/h
Tue. 9, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/8°
Humidity Icon70%
Wind Icon18km/h
Wed. 10, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/13°
Humidity Icon97%
Wind Icon13km/h
Thu. 11, Sep.
partly cloudyPartly Cloudy
Temperature Icon22°/12°
Humidity Icon78%
Wind Icon20km/h
Fri. 12, Sep.
sunnySunny
Temperature Icon22°/11°
Humidity Icon68%
Wind Icon17km/h
Sat. 13, Sep.
sunnySunny
Temperature Icon23°/11°
Humidity Icon55%
Wind Icon12km/h
Sun. 14, Sep.
sunnySunny
Temperature Icon25°/12°
Humidity Icon54%
Wind Icon12km/h
Mon. 15, Sep.
sunnySunny
Temperature Icon25°/13°
Humidity Icon58%
Wind Icon14km/h
Tue. 16, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/10°
Humidity Icon78%
Wind Icon15km/h
Wed. 17, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/11°
Humidity Icon77%
Wind Icon15km/h
Thu. 18, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/11°
Humidity Icon77%
Wind Icon17km/h
Fri. 19, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon77%
Wind Icon16km/h
Sat. 20, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon21°/11°
Humidity Icon74%
Wind Icon16km/h
Sun. 21, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon79%
Wind Icon20km/h
Mon. 22, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/11°
Humidity Icon77%
Wind Icon19km/h
Tue. 23, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon80%
Wind Icon18km/h
Wed. 24, Sep.
patchy rain possiblePatchy rain possible
Temperature Icon21°/10°
Humidity Icon74%
Wind Icon18km/h
Thu. 25, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/11°
Humidity Icon78%
Wind Icon18km/h
Fri. 26, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon81%
Wind Icon19km/h
Sat. 27, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon79%
Wind Icon19km/h
Sun. 28, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/10°
Humidity Icon81%
Wind Icon19km/h
Mon. 29, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon80%
Wind Icon19km/h
Tue. 30, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/9°
Humidity Icon79%
Wind Icon18km/h
Wed. 1, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/8°
Humidity Icon78%
Wind Icon18km/h
Thu. 2, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/8°
Humidity Icon79%
Wind Icon18km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 3, Sep.

24.9°C

Low will be onMon. 8, Sep.

4.8°C

HumidityHumidity

High will be onWed. 10, Sep.

97%

Low will be onSun. 14, Sep.

54%

Wind SpeedWind Speed

High will be onWed. 3, Sep.

31km/h

Low will be onMon. 8, Sep.

11.9km/h

PrecipitationPrecipitation

High will be onThu. 4, Sep.

152.6mm

Low will be onSun. 7, Sep.

0.07mm

Ultraviolet IndexUV

High will be onThu. 11, Sep.

5

Low will be onSun. 7, Sep.

3

Our Blogs

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
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)