Monthly climate averages for Brisbane, Australia. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewBrisbane, Australia in September has warm conditions, with highs averaging 24.5°C (76°F). Temperatures drop noticeably between day and night. Sea temperature averages 21.2°C (70°F).
This month falls at the beginning of Spring.
Daily highs in September gradually rise from around 24°C (74°F) at the start to 26°C (78°F) by month's end.
Rainfall is heaviest during the last third of the month, while the middle tends to be drier.
The warmest days tend to fall around the 30th, averaging 25.9°C (79°F).
Compared to August, this month is about 2°C warmer with 1 more rainy days.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 25°C (76°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
Recent yearly records for September have stayed close to the long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 29°C / 22°C | 33°C / 25°C | 12days (102 mm) Wet | 11h Excellent | 76% Humid | 8.2 Very High | Good | View Details |
| February | 29°C / 22°C | 32°C / 24°C | 12days (144 mm) Wet | 10.4h Excellent | 76% Humid | 8.1 Very High | Good | View Details |
| March | 27°C / 21°C | 30°C / 23°C | 17days (201 mm) Wet | 9.3h Good | 80% Humid | 6.2 High | Wet | View Details |
| April best | 25°C / 18°C | 26°C / 18°C | 8days (56 mm) Wet | 9.7h Good | 76% Humid | 6.1 High | Excellent | View Details |
| May best | 23°C / 14°C | 22°C / 14°C | 8days (64 mm) Wet | 8.6h Good | 75% Muggy | 4.6 Moderate | Excellent | View Details |
| June | 20°C / 11°C | 19°C / 10°C | 6days (42 mm) Good | 8.5h Good | 74% Muggy | 4.2 Moderate | Good | View Details |
| July | 20°C / 11°C | 19°C / 9°C | 6days (38 mm) Good | 8.6h Good | 72% Muggy | 4.5 Moderate | Good | View Details |
| August best | 22°C / 12°C | 21°C / 10°C | 5days (32 mm) Good | 9.5h Good | 69% Muggy | 5.4 High | Excellent | View Details |
| September best | 25°C / 14°C | 24°C / 14°C | 6days (36 mm) Good | 10.1h Excellent | 68% Muggy | 7 High | Excellent | View Details |
| October | 26°C / 17°C | 28°C / 18°C | 11days (110 mm) Wet | 10.1h Excellent | 73% Muggy | 7.8 Very High | Excellent | View Details |
| November best | 28°C / 19°C | 30°C / 20°C | 10days (95 mm) Wet | 11h Excellent | 71% Muggy | 8 Very High | Excellent | View Details |
| December | 29°C / 21°C | 32°C / 23°C | 11days (104 mm) Wet | 11.4h Excellent | 74% Muggy | 8.9 Very High | Good | View Details |
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.
Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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