Weather in Perth in January
January in Perth is mild with average temperatures around 23.0°C (73.4°F). Light rainfall with only 18mm expected.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
26.5°C
79.7°F
Low
19.5°C
67.1°F
Precipitation
18 mm
0.7 inches
~2 rainy days
Conditions
Humidity
65%