September in Toowoomba averages a daily high of 22.3°C with nights around 10.6°C. Expect roughly 5.5 wet days totalling 33.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Toowoomba is August–November.
Based on TOOWOOMBA AIRPORT, AS (4.5km), 1995–2024. 29 years of September data.