Waterloo, Ontario, Canada Climate Change Severity

52
High
The current climate change severity in Waterloo is High, with a 2.3% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jun. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Waterloo Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Waterloo temperature has changed by around +4.2%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jun. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
1946
142.1%
cloudyCloudy
3815
-60.5%
rainyRainy
7345
-38.3%
snowySnowy
1119
72.7%
mistyMisty
04
100%

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

Climate Change Indicators:

Over the past 16 years, Waterloo has experienced measurable shifts in key climate parameters, contributing to the current severity score of 52 (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

52/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Waterloo experienced significant changes:

Temperature change of

+0.18 °C

Variation in annual rainfall

+43.35 %

Change in average humidity

-4.25 %

PM2.5 levels surged by

+26.9 %

Heatwave changed by

0 Day

Coldwave changed by

-6 Days

Wind speeds changed by

+3.01 km/h

These indicators show that Waterloo 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 Jun.

Waterloo Weather Forecast 30 Days (July - August 2026)
Waterloo, Ontario, Canada

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sun. 19, Jul.
sunnySunny
Temperature Icon25°/13°
Humidity Icon68%
Wind Icon16.2km/h
Mon. 20, Jul.
sunnySunny
Temperature Icon26°/11°
Humidity Icon59%
Wind Icon15.8km/h
Tue. 21, Jul.
light rain showerRain Shower
Temperature Icon24°/16°
Humidity Icon84%
Wind Icon25.6km/h
Wed. 22, Jul.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/12°
Humidity Icon82%
Wind Icon31.7km/h
Thu. 23, Jul.
sunnySunny
Temperature Icon23°/9°
Humidity Icon67%
Wind Icon22km/h
Fri. 24, Jul.
sunnySunny
Temperature Icon26°/11°
Humidity Icon57%
Wind Icon14.4km/h
Sat. 25, Jul.
sunnySunny
Temperature Icon28°/14°
Humidity Icon57%
Wind Icon20.5km/h
Sun. 26, Jul.
sunnySunny
Temperature Icon28°/15°
Humidity Icon75%
Wind Icon17.3km/h
Mon. 27, Jul.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon82%
Wind Icon16.8km/h
Tue. 28, Jul.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon80%
Wind Icon17.4km/h
Wed. 29, Jul.
moderate or heavy rain showerRain Showers
Temperature Icon25°/16°
Humidity Icon81%
Wind Icon17.7km/h
Thu. 30, Jul.
moderate rain at timesRain
Temperature Icon25°/15°
Humidity Icon77%
Wind Icon16km/h
Fri. 31, Jul.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon78%
Wind Icon15.5km/h
Sat. 1, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon79%
Wind Icon15.4km/h
Sun. 2, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon78%
Wind Icon15.8km/h
Mon. 3, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon79%
Wind Icon15.9km/h
Tue. 4, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon79%
Wind Icon16.7km/h
Wed. 5, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon78%
Wind Icon18km/h
Thu. 6, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon24°/15°
Humidity Icon78%
Wind Icon16.1km/h
Fri. 7, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon78%
Wind Icon15.7km/h
Sat. 8, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon80%
Wind Icon17.4km/h
Sun. 9, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon26°/16°
Humidity Icon79%
Wind Icon17.7km/h
Mon. 10, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/16°
Humidity Icon80%
Wind Icon18.2km/h
Tue. 11, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon80%
Wind Icon18.2km/h
Wed. 12, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/16°
Humidity Icon80%
Wind Icon18.8km/h
Thu. 13, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon78%
Wind Icon16.3km/h
Fri. 14, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon24°/15°
Humidity Icon77%
Wind Icon16.1km/h
Sat. 15, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon76%
Wind Icon15.2km/h
Sun. 16, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/15°
Humidity Icon80%
Wind Icon16.4km/h
Mon. 17, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon25°/16°
Humidity Icon83%
Wind Icon18.7km/h
Tue. 18, Aug.
moderate or heavy rain showerRain Showers
Temperature Icon24°/15°
Humidity Icon81%
Wind Icon16.1km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 25, Jul.

28°C

Low will be onThu. 23, Jul.

9°C

HumidityHumidity

High will be onTue. 21, Jul.

84%

Low will be onFri. 24, Jul.

57%

Wind SpeedWind Speed

High will be onWed. 22, Jul.

31.7km/h

Low will be onFri. 24, Jul.

14.4km/h

PrecipitationPrecipitation

High will be onTue. 21, Jul.

20.5mm

Low will be onThu. 30, Jul.

0.8mm

Ultraviolet IndexUV

High will be onSun. 19, Jul.

7.9

Low will be onThu. 30, Jul.

4

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