Weather in Brisbane

January is the warmest month (average 25.8°C, high 29.1°C) and July is the coolest (average 16.3°C, low 12.3°C). That 9.5°C swing in monthly averages is the first thing to plan around in Brisbane.

Rain is the monsoon runs from November to March, inside an annual total of 1100 mm. The wettest month is February at 156 mm; the driest is September at 38 mm. Brisbane is in Australia at 27.5°S. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are April, September, and October.

Rainfall pattern

The monsoon in Brisbane starts in November and ends in March (November, December, January, February, and March). February is the core of it at 156 mm. September is the other extreme, with 38 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. February averages 15 such days; September averages 7.

How warm Brisbane gets

The heat peaks in January, when the typical afternoon is 29.1°C. The opposite pole is July, when mornings average 12.3°C.

Mean high across all twelve months is 25.1°C and mean low is 17.8°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Distinctive months in Brisbane

January is the warmest month. Afternoon highs average 29.1°C and nights settle near 22.5°C, with 140 mm of rain. February is the wettest month — 156 mm and 15 rainy days, with 75% humidity. April: 25.4°C high, 19.0°C low, 83 mm rain, 73% humidity.

The year bottoms out in July. Plan for 12.3°C at night and 20.2°C in the afternoon. September is the driest month, averaging only 38 mm across 7 rainy days. Highs sit near 24.0°C.

Best months to visit Brisbane

The three months with the highest comfort score are April, September, and October: April (22.2°C average, 83 mm, 73% humidity); September (19.7°C average, 38 mm, 68% humidity); October (21.7°C average, 81 mm, 69% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at November–March instead of the score.

How Brisbane compares inside Australia

Sydney is about 733 km away: Brisbane is 2.6°C warmer than Sydney in its hottest month and 212 mm wetter over the year than Sydney. Sydney’s wettest month is February (135 mm) versus February here.

Melbourne is about 1375 km away: Brisbane is 5.4°C warmer than Melbourne in its hottest month and 385 mm wetter over the year than Melbourne. Melbourne’s wettest month is November (74 mm) versus February here.

Adelaide is about 1601 km away: Brisbane is 2.9°C warmer than Adelaide in its hottest month and 670 mm wetter over the year than Adelaide. Adelaide’s wettest month is July (60 mm) versus February here.