Nanaimo, British Columbia, Canada Climate Change Severity

33
Moderate
The current climate change severity in Nanaimo is Moderate, with a 22.7% 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 Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (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 +0.9%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
5423
-57.4%
cloudyCloudy
5962
5.08%
rainyRainy
13389
-33.08%
snowySnowy
31
-66.6%
mistyMisty
024
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

-11.9 %

Change in average humidity

+1.7 %

PM2.5 levels surged by

-20.01 %

Heatwave changed by

-7.2 day(s)

Coldwave changed by

-1.06 day(s)

Wind speeds changed by

-0.1 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 Sep.

Nanaimo Weather Forecast 30 Days (October - November 2025)
Nanaimo, British Columbia, Canada

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 11, Oct.
overcastOvercast
Temperature Icon13°/9°
Humidity Icon88%
Wind Icon7km/h
Sun. 12, Oct.
overcastOvercast
Temperature Icon8°/7°
Humidity Icon77%
Wind Icon13km/h
Mon. 13, Oct.
sunnySunny
Temperature Icon12°/5°
Humidity Icon50%
Wind Icon20km/h
Tue. 14, Oct.
sunnySunny
Temperature Icon13°/5°
Humidity Icon52%
Wind Icon9km/h
Wed. 15, Oct.
sunnySunny
Temperature Icon13°/7°
Humidity Icon52%
Wind Icon9km/h
Thu. 16, Oct.
partly cloudyPartly Cloudy
Temperature Icon10°/7°
Humidity Icon71%
Wind Icon5km/h
Fri. 17, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon11°/6°
Humidity Icon75%
Wind Icon21km/h
Sat. 18, Oct.
partly cloudyPartly Cloudy
Temperature Icon9°/5°
Humidity Icon76%
Wind Icon7km/h
Sun. 19, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/7°
Humidity Icon86%
Wind Icon16km/h
Mon. 20, Oct.
sunnySunny
Temperature Icon14°/7°
Humidity Icon80%
Wind Icon11km/h
Tue. 21, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon10°/6°
Humidity Icon86%
Wind Icon7km/h
Wed. 22, Oct.
partly cloudyPartly Cloudy
Temperature Icon12°/7°
Humidity Icon84%
Wind Icon10km/h
Thu. 23, Oct.
sunnySunny
Temperature Icon13°/8°
Humidity Icon71%
Wind Icon7km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon86%
Wind Icon13km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon87%
Wind Icon14km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon85%
Wind Icon14km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon82%
Wind Icon14km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon84%
Wind Icon11km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/6°
Humidity Icon85%
Wind Icon11km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon85%
Wind Icon14km/h
Fri. 31, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/6°
Humidity Icon83%
Wind Icon12km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon87%
Wind Icon12km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/6°
Humidity Icon89%
Wind Icon13km/h
Mon. 3, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/6°
Humidity Icon88%
Wind Icon13km/h
Tue. 4, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon10°/5°
Humidity Icon89%
Wind Icon14km/h
Wed. 5, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon9°/5°
Humidity Icon88%
Wind Icon14km/h
Thu. 6, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/5°
Humidity Icon89%
Wind Icon15km/h
Fri. 7, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon87%
Wind Icon14km/h
Sat. 8, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon86%
Wind Icon13km/h
Sun. 9, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon89%
Wind Icon13km/h
Mon. 10, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/4°
Humidity Icon87%
Wind Icon10km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 20, Oct.

13.7°C

Low will be onMon. 10, Nov.

3.6°C

HumidityHumidity

High will be onSun. 2, Nov.

89%

Low will be onMon. 13, Oct.

50%

Wind SpeedWind Speed

High will be onFri. 17, Oct.

21.2km/h

Low will be onThu. 16, Oct.

5km/h

PrecipitationPrecipitation

High will be onThu. 30, Oct.

14.8mm

Low will be onSat. 18, Oct.

0.02mm

Ultraviolet IndexUV

High will be onThu. 16, Oct.

3

Low will be onFri. 17, Oct.

2

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