Brisbane Weather in September
In September, Brisbane averages a high of 25°C (77°F) and a low of 14°C (56°F), from 55 years of daily records (1971–2026).
25°C
Average high
77°F
14°C
Average low
56°F
37°C
Record high
99°F · September 29, 2017
3°C
Record low
37°F · September 29, 1994
What September Is Like in Brisbane
- 5 of the 10 warmest Septembers on record in Brisbane have come since 2011.
- The coldest September reading, 3°C (37°F) on September 29, 1994, has not been matched in 32 years.
- September is Brisbane's driest month, averaging 31 mm of rain against 170 mm in the wettest.
- A typical September brings 1.3 days above 30°C (86°F).
At least 1 mm of rain falls on 14% of September days, and the month averages 31 mm in total.
Warmest: 2003 (27.6°C)Latest: 2025 (25.9°C)10-year averageLong-run average (24.9°C)
Look Up a Day in September
See the weather in Brisbane on any September date, year by year.
Source: NOAA GHCN-Daily, Brisbane (1999–2026); Brisbane Regional Office (1971–1986); Brisbane Aero (1979–2021). Averages cover 1971–2026. How we compute this