Garden Island Weather Forecast
- 14
- 27
Shower or two
- 17
- 33
Becoming windy. Partly cloudy
- 15
- 21
Cloudy
- 14
- 22
Cloudy
- 13
- 26
Mostly sunny
- 14
- 30
Sunny
- 16
- 33
Partly cloudy
Today 13 Dec Illawarra
Partly cloudy. The chance of fog in the early morning. Medium chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm in the afternoon and evening. Light winds becoming northwest to northeasterly 15 to 25 km/h in the middle of the day then tending west to northwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to between 12 and 16 with daytime temperatures reaching around 30.
Garden Island Temperature Statistics View More
December Temperature
Nowra (RAN Air Station) (18km)
Lowest 1 December, 2025
8.8 °CAverage December
20.6 °CHighest 6 December, 2025
39.5 °C
Climate (2020–Present)
Nowra (RAN Air Station) (18km)
Average Low 2020–2025
12 °CAverage 2020–2025
16.5 °CAverage High 2020–2025
22.4 °C