September in Brisbane averages a daily high of 25.7°C with nights around 13.9°C. Expect roughly 5.1 wet days totalling 29.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Brisbane is May–September.
Based on BRISBANE, AS (1.8km), 1995–2024. 25 years of September data.