Weather in Brisbane in September 2025
Average weather
Average temperature in Brisbane in September
Going from a maximum of +33°C during the day to a minimum of +10°C during the night, the temperature in September averages around +25°C.
The average maximum temperature goes down 4% by the end of the month, compared with the beginning of the month, from +28°C to +27°C.
Is Brisbane warm or cold in September?
Brisbane is typically warm in September.
Maximum temperatures go up compared to the previous month from +21°C to +23°C. The minimum temperature also goes up from +12°C to +14°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Brisbane:
Water temperature in Brisbane in September
Water in Brisbane in September is Comfortable. It varies from +21°C to +22°C, with an average of +21°C. This is almost similar to the air temperature, which averages +23°C.
The water temperature in September is one of the coldest of the entire year:
Can you swim in Brisbane in September?
Climate in Brisbane in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +21°C | +23°C | +25°C | ||||
| Min. temperature | ||||||
| +2°C | +7°C | +9°C | ||||
| Max. temperature | ||||||
| +32°C | +34°C | +35°C | ||||
| Rainfall | ||||||
| 37 mm | 37 mm | 77 mm | ||||
| Wind | ||||||
| 2 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +21°C | +21°C | +22°C | ||||
| Humidity | ||||||
| 66% | 67% | 68% | ||||
| Air pressure | ||||||
| 1019 HPa | 1017 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 18 | 15 | 10 | ||||
| Cloudy days | ||||||
| 4 | 4 | 6 | ||||
| Rainy days | ||||||
| 9 | 9 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September often has better weather than August. It’s getting warmer as September arrives. The average maximum temperature goes up from +21°C to +23°C during the day. The rainfall amount in September stays the same as in the previous month with a 37 mm of total precipitation. Humidity rises from 66% to 67%. Winds are stronger in comparison to August, going up from 2 m/s to 3 m/s on average. The days becoming less sunny, going from 18 sunny days in August to 15 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Brisbane is gradually increasing during September, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last September in Brisbane?
Climate Change over Years
The climate in Brisbane in September has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+23°C) and the highest in 2019 (+27°C). The driest year was 1993 with only 543 mm of rainfall, and the wettest year was 2022 with 2497 mm.
FAQ
Is September a good time to visit Brisbane?
Can you sunbathe in Brisbane in September?
Can you swim in Brisbane in September?
Is Brisbane rainy in September?
Is it sunny in Brisbane in September?
Other cities in Australia
Monthly weather in Brisbane
Source of the data
For this page, we’ve looked at the typical weather in Brisbane, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.