Sudbury, Ontario, Canada Climate Change Severity

48
High
The current climate change severity in Sudbury is High, with no significant change in the climate score compared to last 15 years. This suggests stable conditions, where environmental indicators have remained consistent without notable improvements or deteriorations.
Data: Jan. to Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Sudbury 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), Sudbury temperature has changed by around +0.08%, 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
2215
-31.8%
cloudyCloudy
4230
-28.5%
rainyRainy
7671
-6.5%
snowySnowy
1419
35.7%
mistyMisty
03
100%

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

Climate Change Indicators:

Over the past 15 years, Sudbury has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (within the High severity category). This suggests stable but high-risk conditions. 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, Sudbury experienced significant changes:

Temperature change of

+0.002 °C

Variation in annual rainfall

+106.5 %

Change in average humidity

-8.9 %

PM2.5 levels surged by

-23.5 %

Heatwave changed by

-3.8 day(s)

Coldwave changed by

-6.1 day(s)

Wind speeds changed by

+0.7 km/h

Although the indicators show no significant change, Sudbury’s High severity status emphasizes the need for long-term climate mitigation and adaptation measures.

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

Sudbury Weather Forecast 30 Days (August - September 2025)
Sudbury, Ontario, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 5, Aug.
partly cloudyPartly Cloudy
Temperature Icon28°/15°
Humidity Icon57%
Wind Icon10km/h
Wed. 6, Aug.
partly cloudyPartly Cloudy
Temperature Icon28°/16°
Humidity Icon69%
Wind Icon9km/h
Thu. 7, Aug.
mistMist
Temperature Icon28°/17°
Humidity Icon77%
Wind Icon17km/h
Fri. 8, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/17°
Humidity Icon78%
Wind Icon19km/h
Sat. 9, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon32°/17°
Humidity Icon76%
Wind Icon21km/h
Sun. 10, Aug.
partly cloudyPartly Cloudy
Temperature Icon32°/19°
Humidity Icon74%
Wind Icon22km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/19°
Humidity Icon87%
Wind Icon24km/h
Tue. 12, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/19°
Humidity Icon82%
Wind Icon16km/h
Wed. 13, Aug.
partly cloudyPartly Cloudy
Temperature Icon27°/16°
Humidity Icon71%
Wind Icon8km/h
Thu. 14, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/17°
Humidity Icon69%
Wind Icon17km/h
Fri. 15, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/14°
Humidity Icon84%
Wind Icon17km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon24°/10°
Humidity Icon62%
Wind Icon9km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon27°/12°
Humidity Icon63%
Wind Icon5km/h
Mon. 18, Aug.
sunnySunny
Temperature Icon29°/15°
Humidity Icon59%
Wind Icon8km/h
Tue. 19, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/13°
Humidity Icon71%
Wind Icon15km/h
Wed. 20, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/14°
Humidity Icon76%
Wind Icon15km/h
Thu. 21, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon81%
Wind Icon15km/h
Fri. 22, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon77%
Wind Icon14km/h
Sat. 23, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon23°/13°
Humidity Icon74%
Wind Icon14km/h
Sun. 24, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/13°
Humidity Icon76%
Wind Icon15km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon80%
Wind Icon16km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon73%
Wind Icon15km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon75%
Wind Icon13km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon76%
Wind Icon16km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon80%
Wind Icon18km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon80%
Wind Icon17km/h
Sun. 31, Aug.
moderate rain at timesModerate rain at times
Temperature Icon22°/12°
Humidity Icon75%
Wind Icon14km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/12°
Humidity Icon76%
Wind Icon15km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/12°
Humidity Icon76%
Wind Icon16km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/12°
Humidity Icon77%
Wind Icon16km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon78%
Wind Icon16km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 10, Aug.

31.9°C

Low will be onSat. 16, Aug.

10.3°C

HumidityHumidity

High will be onMon. 11, Aug.

87%

Low will be onTue. 5, Aug.

57%

Wind SpeedWind Speed

High will be onMon. 11, Aug.

24.1km/h

Low will be onSun. 17, Aug.

5.4km/h

PrecipitationPrecipitation

High will be onFri. 29, Aug.

7.3mm

Low will be onFri. 8, Aug.

0.1mm

Ultraviolet IndexUV

High will be onSun. 10, Aug.

6

Low will be onSat. 9, Aug.

0.1

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