December in Canberra averages a daily high of 27.4°C with nights around 10.4°C. Expect roughly 8.4 wet days totalling 66.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Canberra is February–April.
Based on CANBERRA FORESTRY, AS (3.1km), 1995–2024. 24 years of December data.