December in Brisbane averages a daily high of 29.7°C with nights around 20.6°C. Expect roughly 10.5 wet days totalling 139.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Brisbane is May–September.
Based on BRISBANE, AS (1.8km), 1995–2024. 25 years of December data.