WEATHER · CLIMATE NORMALS · 1991–2020
Brisbane Climate — Averages by Month
What the weather in Brisbane, AUaverages across a standard 30-year period. Each month's figure is the 1991–2020 mean temperature and total rainfall from the ERA5 reanalysis — the long-run normal a place settles around, not a forecast for any particular day.
Month-by-month normals
| Month | Avg temperature | Avg rainfall |
|---|---|---|
| January | 24.7 °C · warmest | 130.5 mm |
| February | 24.3 °C | 131.9 mm · wettest |
| March | 23.0 °C | 99.4 mm |
| April | 20.3 °C | 49.7 mm |
| May | 17.2 °C | 62.1 mm |
| June | 14.9 °C | 56.1 mm |
| July | 14.2 °C · coldest | 29.9 mm |
| August | 15.3 °C | 38.3 mm |
| September | 18.2 °C | 38.3 mm |
| October | 20.2 °C | 76.1 mm |
| November | 22.2 °C | 87.7 mm |
| December | 23.7 °C | 115.5 mm |
How to read these numbers
These are reanalysis normals, not readings from a single weather station. They come from the ERA5 0.25° (~25 km) global reanalysis grid, sampled at the grid cell nearest Brisbane — centred at 27.50°S, 153.00°E. A reanalysis blends observations with a physics model onto an even grid, so a coastal or mountain city's cell can read a little cooler, warmer, wetter or drier than the city centre itself. The month-to-month shape — when it's hot, when it rains — is what these normals capture best.
“Normal” means the 1991–2020 average, the current World Meteorological Organization standard period. A normal is what a place tends toward over decades — any single day, month or year can and will depart from it.