Perth, Western Australia, Australia Climate Change Severity

43
High
The current climate change severity in Perth is High, with a 5.4% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Aug. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Perth 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), Perth temperature has changed by around +0.01%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
100132
32%
cloudyCloudy
5627
-51.7%
rainyRainy
7165
-8.4%
snowySnowy
00
0%
mistyMisty
01
100%

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

Climate Change Indicators:

Over the past 16 years, Perth has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). While the score remains High, certain factors have improved over time. Here’s a breakdown of the specific changes observed:

Severity Score

43/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Perth experienced significant changes:

Temperature change of

+0 °C

Variation in annual rainfall

-8.56 %

Change in average humidity

-6.66 %

PM2.5 levels surged by

+31.95 %

Heatwave changed by

-3 Days

Coldwave changed by

-2 Days

Wind speeds changed by

+0.2 km/h

These indicators show improvement in key parametes of climate, but Perth remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Perth Weather Forecast 30 Days (September - October 2026)
Perth, Western Australia, Australia

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Tue. 29, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/11°
Humidity Icon69%
Wind Icon18km/h
Wed. 30, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/11°
Humidity Icon69%
Wind Icon19.4km/h
Thu. 1, Oct.
sunnySunny
Temperature Icon20°/11°
Humidity Icon51%
Wind Icon20.2km/h
Fri. 2, Oct.
sunnySunny
Temperature Icon24°/10°
Humidity Icon51%
Wind Icon21.6km/h
Sat. 3, Oct.
sunnySunny
Temperature Icon22°/12°
Humidity Icon62%
Wind Icon20.9km/h
Sun. 4, Oct.
sunnySunny
Temperature Icon19°/11°
Humidity Icon62%
Wind Icon17.6km/h
Mon. 5, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/12°
Humidity Icon71%
Wind Icon24.8km/h
Tue. 6, Oct.
sunnySunny
Temperature Icon24°/10°
Humidity Icon59%
Wind Icon14km/h
Wed. 7, Oct.
patchy rain possibleRain Possible
Temperature Icon22°/12°
Humidity Icon62%
Wind Icon19.5km/h
Thu. 8, Oct.
heavy rain at timesHeavy Rain
Temperature Icon22°/12°
Humidity Icon65%
Wind Icon20km/h
Fri. 9, Oct.
moderate rain at timesRain
Temperature Icon23°/12°
Humidity Icon64%
Wind Icon19.5km/h
Sat. 10, Oct.
patchy rain possibleRain Possible
Temperature Icon22°/12°
Humidity Icon64%
Wind Icon22.4km/h
Sun. 11, Oct.
moderate rain at timesRain
Temperature Icon22°/12°
Humidity Icon63%
Wind Icon21.5km/h
Mon. 12, Oct.
moderate rain at timesRain
Temperature Icon23°/12°
Humidity Icon63%
Wind Icon21km/h
Tue. 13, Oct.
moderate rain at timesRain
Temperature Icon24°/12°
Humidity Icon63%
Wind Icon20.8km/h
Wed. 14, Oct.
heavy rain at timesHeavy Rain
Temperature Icon22°/13°
Humidity Icon64%
Wind Icon22.9km/h
Thu. 15, Oct.
patchy rain possibleRain Possible
Temperature Icon23°/12°
Humidity Icon60%
Wind Icon21.2km/h
Fri. 16, Oct.
patchy rain possibleRain Possible
Temperature Icon24°/13°
Humidity Icon61%
Wind Icon24.3km/h
Sat. 17, Oct.
patchy rain possibleRain Possible
Temperature Icon24°/13°
Humidity Icon62%
Wind Icon21.7km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon23°/12°
Humidity Icon64%
Wind Icon20.9km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon22°/12°
Humidity Icon64%
Wind Icon21.7km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon22°/13°
Humidity Icon65%
Wind Icon24.6km/h
Wed. 21, Oct.
patchy rain possibleRain Possible
Temperature Icon23°/13°
Humidity Icon58%
Wind Icon20.9km/h
Thu. 22, Oct.
moderate rain at timesRain
Temperature Icon23°/13°
Humidity Icon62%
Wind Icon21.4km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon23°/13°
Humidity Icon62%
Wind Icon21.8km/h
Sat. 24, Oct.
moderate rain at timesRain
Temperature Icon23°/13°
Humidity Icon61%
Wind Icon23.7km/h
Sun. 25, Oct.
moderate rain at timesRain
Temperature Icon24°/14°
Humidity Icon63%
Wind Icon23.2km/h
Mon. 26, Oct.
heavy rain at timesHeavy Rain
Temperature Icon24°/13°
Humidity Icon65%
Wind Icon21.8km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon24°/14°
Humidity Icon61%
Wind Icon21.6km/h
Wed. 28, Oct.
patchy rain possibleRain Possible
Temperature Icon25°/14°
Humidity Icon60%
Wind Icon23.2km/h
Thu. 29, Oct.
heavy rain at timesHeavy Rain
Temperature Icon24°/14°
Humidity Icon63%
Wind Icon23km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 28, Oct.

25°C

Low will be onFri. 2, Oct.

10°C

HumidityHumidity

High will be onMon. 5, Oct.

71%

Low will be onThu. 1, Oct.

51%

Wind SpeedWind Speed

High will be onMon. 5, Oct.

24.8km/h

Low will be onTue. 6, Oct.

14km/h

PrecipitationPrecipitation

High will be onMon. 19, Oct.

3.8mm

Low will be onThu. 1, Oct.

0.01mm

Ultraviolet IndexUV

High will be onSat. 3, Oct.

9.6

Low will be onTue. 29, Sep.

4.7

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