Nanaimo, British Columbia, Canada Climate Change Severity

33
Moderate
The current climate change severity in Nanaimo is Moderate, with a -27.2% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Nanaimo 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), Nanaimo temperature has changed by around -1.04%, 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
3416
-52.9%
cloudyCloudy
4346
6.9%
rainyRainy
11282
-26.7%
snowySnowy
31
-66.6%
mistyMisty
011
100%

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

Climate Change Indicators:

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

Temperature change of

-0.1 °C

Variation in annual rainfall

-15.02 %

Change in average humidity

+1.3 %

PM2.5 levels surged by

-12.9 %

Heatwave changed by

-8.1 day(s)

Coldwave changed by

-0.8 day(s)

Wind speeds changed by

-0.4 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 Jul.

Nanaimo Weather Forecast 30 Days (August - September 2025)
Nanaimo, British Columbia, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 5, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/13°
Humidity Icon90%
Wind Icon8km/h
Wed. 6, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/15°
Humidity Icon93%
Wind Icon12km/h
Thu. 7, Aug.
partly cloudyPartly Cloudy
Temperature Icon18°/15°
Humidity Icon86%
Wind Icon11km/h
Fri. 8, Aug.
partly cloudyPartly Cloudy
Temperature Icon18°/13°
Humidity Icon77%
Wind Icon12km/h
Sat. 9, Aug.
sunnySunny
Temperature Icon22°/15°
Humidity Icon73%
Wind Icon12km/h
Sun. 10, Aug.
sunnySunny
Temperature Icon26°/17°
Humidity Icon60%
Wind Icon13km/h
Mon. 11, Aug.
sunnySunny
Temperature Icon29°/19°
Humidity Icon53%
Wind Icon13km/h
Tue. 12, Aug.
sunnySunny
Temperature Icon27°/20°
Humidity Icon55%
Wind Icon16km/h
Wed. 13, Aug.
sunnySunny
Temperature Icon21°/18°
Humidity Icon74%
Wind Icon12km/h
Thu. 14, Aug.
sunnySunny
Temperature Icon21°/15°
Humidity Icon76%
Wind Icon9km/h
Fri. 15, Aug.
sunnySunny
Temperature Icon23°/16°
Humidity Icon68%
Wind Icon8km/h
Sat. 16, Aug.
sunnySunny
Temperature Icon22°/17°
Humidity Icon68%
Wind Icon9km/h
Sun. 17, Aug.
sunnySunny
Temperature Icon20°/14°
Humidity Icon76%
Wind Icon10km/h
Mon. 18, Aug.
partly cloudyPartly Cloudy
Temperature Icon19°/15°
Humidity Icon77%
Wind Icon8km/h
Tue. 19, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon23°/15°
Humidity Icon72%
Wind Icon9km/h
Wed. 20, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/15°
Humidity Icon74%
Wind Icon10km/h
Thu. 21, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon21°/14°
Humidity Icon77%
Wind Icon10km/h
Fri. 22, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon76%
Wind Icon9km/h
Sat. 23, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon20°/13°
Humidity Icon77%
Wind Icon9km/h
Sun. 24, Aug.
patchy rain possiblePatchy rain possible
Temperature Icon21°/13°
Humidity Icon72%
Wind Icon9km/h
Mon. 25, Aug.
moderate rain at timesModerate rain at times
Temperature Icon22°/14°
Humidity Icon72%
Wind Icon8km/h
Tue. 26, Aug.
moderate rain at timesModerate rain at times
Temperature Icon21°/14°
Humidity Icon74%
Wind Icon9km/h
Wed. 27, Aug.
moderate rain at timesModerate rain at times
Temperature Icon22°/14°
Humidity Icon73%
Wind Icon9km/h
Thu. 28, Aug.
heavy rain at timesHeavy rain at times
Temperature Icon21°/14°
Humidity Icon77%
Wind Icon9km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/14°
Humidity Icon81%
Wind Icon9km/h
Sat. 30, Aug.
moderate rain at timesModerate rain at times
Temperature Icon19°/13°
Humidity Icon82%
Wind Icon9km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/13°
Humidity Icon82%
Wind Icon9km/h
Mon. 1, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon20°/13°
Humidity Icon80%
Wind Icon8km/h
Tue. 2, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon20°/13°
Humidity Icon78%
Wind Icon9km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/13°
Humidity Icon78%
Wind Icon9km/h
Thu. 4, Sep.
moderate rain at timesModerate rain at times
Temperature Icon20°/13°
Humidity Icon77%
Wind Icon9km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 11, Aug.

28.7°C

Low will be onMon. 1, Sep.

12.5°C

HumidityHumidity

High will be onWed. 6, Aug.

93%

Low will be onMon. 11, Aug.

53%

Wind SpeedWind Speed

High will be onTue. 12, Aug.

16.2km/h

Low will be onFri. 15, Aug.

7.9km/h

PrecipitationPrecipitation

High will be onFri. 29, Aug.

5.4mm

Low will be onThu. 14, Aug.

0.01mm

Ultraviolet IndexUV

High will be onSun. 10, Aug.

6

Low will be onTue. 19, Aug.

4

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