Australia in December: where is it warmest?
In December, Alice Springs is the warmest place with 35 °C by day, Hobart the coolest with 21 °C. 21 of 24 destinations have good holiday weather.
All destinations in December, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Alice Springs | 49 | 35° | – | 10 h | 5 |
| Broome | 78 | 34° | 30° | 8 h | 9 |
| Coober Pedy | 50 | 34° | – | 10 h | 3 |
| Darwin | 68 | 32° | 31° | 7 h | 25 |
| Airlie Beach (Whitsundays) | 91 | 31° | 28° | 10 h | 11 |
| Townsville | 57 | 31° | 29° | 9 h | 13 |
| Perth | 86 | 29° | 21° | 12 h | 2 |
| Mackay | 83 | 28° | 28° | 8 h | 13 |
| Toowoomba | 83 | 28° | – | 9 h | 9 |
| Cairns | 78 | 28° | 29° | 8 h | 17 |
| Brisbane | 80 | 27° | – | 9 h | 12 |
| Sunshine Coast | 79 | 27° | 25° | 9 h | 13 |
| Adelaide | 100 | 26° | 20° | 10 h | 4 |
| Gold Coast (Surfers Paradise) | 89 | 26° | 25° | 9 h | 12 |
| Byron Bay | 87 | 26° | 25° | 9 h | 13 |
| Newcastle | 84 | 26° | 21° | 8 h | 10 |
| Canberra | 94 | 25° | – | 9 h | 7 |
| Melbourne | 91 | 24° | 19° | 9 h | 7 |
| Sydney | 85 | 24° | 22° | 8 h | 9 |
| Wollongong | 82 | 23° | 22° | 8 h | 11 |
| Port Lincoln | 63 | 22° | 18° | 9 h | 4 |
| Geelong | 92 | 21° | 17° | 8 h | 7 |
| Launceston | 90 | 21° | – | 10 h | 9 |
| Hobart | 85 | 21° | 15° | 8 h | 10 |
Australia in December: quick answers
Australia in December: where is it warmest?
The warmest places in December are Alice Springs (35 °C), Broome (34 °C) and Coober Pedy (34 °C).
Australia in December: where is the sea warmest?
The sea is warmest at Darwin (31 °C), Broome (30 °C) and Townsville (29 °C).
Australia in December: where is the weather best?
The best holiday weather in December – warm, sunny and dry – is in Adelaide, Canberra and Geelong.
Australia month by month
Australia: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences