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
Sat. 2, Aug.
sunnySunny
Temperature Icon30°/13°
Humidity Icon59%
Wind Icon15km/h
Sun. 3, Aug.
sunnySunny
Temperature Icon30°/17°
Humidity Icon58%
Wind Icon18km/h
Mon. 4, Aug.
partly cloudyPartly Cloudy
Temperature Icon21°/17°
Humidity Icon71%
Wind Icon10km/h
Tue. 5, Aug.
partly cloudyPartly Cloudy
Temperature Icon29°/14°
Humidity Icon63%
Wind Icon9km/h
Wed. 6, Aug.
partly cloudyPartly Cloudy
Temperature Icon31°/17°
Humidity Icon57%
Wind Icon16km/h
Thu. 7, Aug.
partly cloudyPartly Cloudy
Temperature Icon30°/18°
Humidity Icon53%
Wind Icon23km/h
Fri. 8, Aug.
partly cloudyPartly Cloudy
Temperature Icon31°/17°
Humidity Icon65%
Wind Icon23km/h
Sat. 9, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon31°/18°
Humidity Icon75%
Wind Icon22km/h
Sun. 10, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon30°/20°
Humidity Icon77%
Wind Icon13km/h
Mon. 11, Aug.
moderate rainModerate rain
Temperature Icon21°/17°
Humidity Icon98%
Wind Icon10km/h
Tue. 12, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/16°
Humidity Icon87%
Wind Icon20km/h
Wed. 13, Aug.
partly cloudyPartly Cloudy
Temperature Icon29°/14°
Humidity Icon75%
Wind Icon10km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon30°/16°
Humidity Icon69%
Wind Icon15km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon31°/17°
Humidity Icon67%
Wind Icon19km/h
Sat. 16, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/13°
Humidity Icon75%
Wind Icon14km/h
Sun. 17, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/14°
Humidity Icon78%
Wind Icon16km/h
Mon. 18, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/13°
Humidity Icon75%
Wind Icon15km/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

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 9, Aug.

31.2°C

Low will be onSun. 31, Aug.

11.6°C

HumidityHumidity

High will be onMon. 11, Aug.

98%

Low will be onThu. 7, Aug.

53%

Wind SpeedWind Speed

High will be onThu. 7, Aug.

23km/h

Low will be onTue. 5, Aug.

8.6km/h

PrecipitationPrecipitation

High will be onFri. 29, Aug.

7.3mm

Low will be onSun. 31, Aug.

0.8mm

Ultraviolet IndexUV

High will be onWed. 6, Aug.

6

Low will be onTue. 5, Aug.

0.1

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