Component breakdown
Air Quality
PM2.5 as US AQI, annual means over the window
9.2
Optimal
Climate
Apparent temperature, 18-24°C optimal
9.0
Good
Wind
Daily maximum gusts, calm is comfortable
7.0
Fair
UV Safety
Hazardous UV peaks penalized, low UV is not
7.8
Good
Day-Night Swing
Daily max-min gap, mild swings score high
9.6
Optimal
Seasons
Distinct but gentle seasons score highest
10.0
Optimal
Sunlight
Annual sunshine hours
9.1
Optimal
Rainfall
Volume and year-to-year reliability
8.7
Good
Disaster Risk
Recorded events, 3 yr / 50 km
9.6
Optimal
Goldilocks curve
Cold18-24°CHot
Perth sits just below the plateau on the cool side, mean feels-like 16.9°C.
Air quality source
Ground monitor
This city's air quality is measured by a real monitoring station: OpenAQ ground monitor (3.9km).
Coordinates-31.9523, 115.8613
Data window10y
Updated7/13/2026
Sources: Open-Meteo, OpenAQ ground monitor (3.9km), USGS Earthquakes, NOAA IBTrACS, Smithsonian GVP, GloFAS (Copernicus)