Townsville weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: May – October
What is the weather like in Townsville in September?
In September, Townsville is hot: daytime highs average 27 °C, and nights cool down to about 19 °C. The sea averages 24.1 °C – pleasant for swimming. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 11 mm in total. All in all, September is an excellent month for a holiday in Townsville.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 100 | 99 | 85 |
| Day | 25° | 27° | 29° |
| Night | 16° | 19° | 22° |
| Sea | 23° | 24° | 26° |
| Sun | 9 h | 10 h | 10 h |
| Rain days | 2 | 4 | 5 |
More details for September
- Daylight
- 11 h 58 min06:09 – 18:07
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 36 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Time zone
- UTC+10Australia/Brisbane
How the score comes together
- Temperatureweight 50 %98 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
Townsville in September: quick answers
Is Townsville hot in September?
Yes. In September, Townsville is hot: daytime highs average 27 °C and nights stay around 19 °C. On about 2 days the thermometer climbs to 30 °C or more.
Can you swim in Townsville in September?
Yes. In September the sea averages 24.1 °C – pleasant for swimming.
Does it rain much in Townsville in September?
Rain is rare: about 4 days bring 11 mm in total.
Townsville month by month
The whole year in TownsvilleAll destinations: AustraliaWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences