Weather in Sydney in December
In an average December, Sydney sees a daily high around 23°C and a low around 19°C, based on 1980–2026 of local climate records.
| Average high | 23°C |
|---|---|
| Typical high range | 20°C to 27°C |
| Average low | 19°C |
| Typical low range | 16°C to 21°C |
| Average daily precipitation | 3 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
34°C
2004-12-01
Lowest
17°C
1995-12-12
Low
Highest
26°C
1997-12-21
Lowest
13°C
1995-12-11
Feels-like
Highest
45°C
2004-12-01
Lowest
13°C
1995-12-11
Humidity
Highest
20.3 g/m³
2005-12-31
Lowest
6.3 g/m³
2019-12-02
Wind
Highest
52 km/h
2004-12-27
Lowest
11 km/h
2020-12-20
Gust
Highest
85 km/h
2004-12-27
Lowest
22 km/h
2020-12-20
Precip
Wettest
136 mm
1991
Driest
14 mm
2019
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