Weather in Perth, Western Australia, Australia in December
In an average December, Perth sees a daily high around 25°C and a low around 18°C, based on 1981–2026 of local climate records.
| Average high | 25°C |
|---|---|
| Typical high range | 20°C to 31°C |
| Average low | 18°C |
| Typical low range | 16°C to 21°C |
| Average daily precipitation | 0 mm |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
38°C
2021-12-26
Lowest
17°C
2015-12-05
Low
Highest
27°C
2021-12-27
Lowest
13°C
2002-12-04
Feels-like
Highest
47°C
2004-12-14
Lowest
13°C
2002-12-02
Humidity
Highest
18.1 g/m³
2010-12-24
Lowest
8.2 g/m³
1984-12-10
Wind
Highest
62 km/h
2002-12-22
Lowest
16 km/h
2020-12-11
Precip
Wettest
39 mm
2011
Driest
0 mm
1994
See Perth's live weather grade →
Visiting Perth in December? See how its comfort stacks up against where you live.
Compare Perth with your city →