Garden Island Weather Forecast
- 11
- 19
Partly cloudy
- 7
- 22
Sunny
- 10
- 27
Sunny
- 15
- 30
Mostly sunny
- 16
- 25
Showers
- 13
- 21
Shower or two
- 12
- 21
Possible shower
Today 28 Sep Illawarra
Cloudy. Winds east to southeasterly 15 to 20 km/h becoming light in the middle of the day. Daytime maximum temperatures between 15 and 19.
Garden Island Temperature Statistics View More
September Temperature
Nowra (RAN Air Station) (18km)
Lowest 17 September, 2026
4.9 °CAverage September
16 °CHighest 26 September, 2026
34.2 °C
Climate (2021–2026)
Nowra (RAN Air Station) (18km)
Average Low 2021–2026
12.1 °CAverage 2021–2026
16.7 °CAverage High 2021–2026
22.6 °C