Climate averages 1991–2020
Townsville weather
in September.
A warm, very dry month: the 8th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Townsville: daytime highs average 27.3°C and nights cool to about 18.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 9.8 mm of rain on roughly 3 days, which makes September a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 58 min on an average September day.
The nearest other city in this atlas is Cairns (283 km away). In September its highs average 26.3°C, 1.0°C cooler than Townsville, with 14 mm of rain.
Among the 32 cities listed in Australia, Townsville ranks 2nd of 32 for the warmest September highs and 1st of 32 for the driest September (rainfall, lowest first). The mean September high of those 32 cities is 20.0°C; Townsville is 7.3°C warmer than that mean.
From September to October, average highs rise by 1.6°C to 28.8°C, and monthly rainfall rises from 9.8 mm to 22 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Townsville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.7°C24.5°C | 24.5°C | 208 | 16.6 | 13.113 h |
| February | 30.2°C24.5°C | 24.5°C | 219 | 17.7 | 12.713 h |
| March | 29.6°C23.5°C | 23.5°C | 127 | 12.7 | 12.212 h |
| April | 28.3°C21.6°C | 21.6°C | 49 | 6.9 | 11.712 h |
| May | 26.2°C19.0°C | 19.0°C | 29 | 4.9 | 11.211 h |
| June | 24.3°C16.5°C | 16.5°C | 20 | 3.8 | 11.011 h |
| July | 23.9°C15.4°C | 15.4°C | 16 | 2.7 | 11.111 h |
| August | 25.0°C16.2°C | 16.2°C | 15 | 2.2 | 11.511 h |
| September, selected | 27.3°C18.9°C | 18.9°C | 9.8 | 3.3 | 12.012 h |
| October | 28.8°C21.3°C | 21.3°C | 22 | 5.1 | 12.513 h |
| November | 30.0°C23.1°C | 23.1°C | 47 | 8.0 | 13.013 h |
| December | 30.9°C24.3°C | 24.3°C | 88 | 12.5 | 13.313 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Cairns in SeptemberAustralia · 283 kmHigh 26.3°C · Low 20.2°C · 14 mm rain
- Mackay in SeptemberAustralia · 324 kmHigh 23.8°C · Low 18.8°C · 16 mm rain
- Rockhampton in SeptemberAustralia · 597 kmHigh 26.6°C · Low 15.4°C · 20 mm rain
- Sunshine Coast in SeptemberAustralia · 1043 kmHigh 23.1°C · Low 15.3°C · 39 mm rain
- Toowoomba in SeptemberAustralia · 1061 kmHigh 21.9°C · Low 9.3°C · 29 mm rain
- Brisbane in SeptemberAustralia · 1111 kmHigh 24.2°C · Low 13.6°C · 35 mm rain
- Logan City in SeptemberAustralia · 1131 kmHigh 23.6°C · Low 13.8°C · 33 mm rain
- Gold Coast in SeptemberAustralia · 1182 kmHigh 22.2°C · Low 15.4°C · 40 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Townsville) is explained once on the Townsville year overview and on the Sources, method and limits page.