Stack Island Weather Forecast
- 13
- 18
Partly cloudy
- 10
- 19
Sunny
- 10
- 19
Sunny
- 11
- 19
Possible shower
- 13
- 19
Possible shower
- 14
- 21
Shower or two
- 15
- 21
Possible shower
Today 5 Jun Illawarra
Partly cloudy. Winds southwesterly 15 to 20 km/h turning westerly in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southwesterly 20 to 30 knots.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southerly 2.5 to 3 metres inshore, increasing to 2.5 to 4 metres offshore north of Port Kembla.
- Weather
- Partly cloudy.
- Weather Situation
- A trough associated with a low pressure system in the Tasman Sea is crossing the coastal waters, driving a fresh to strong southwesterly flow over the coastal waters. A strong high pressure system is forecast to drift across the state during the weekend turning the winds southeast to northeasterly. From early to mid next week, the high moves offshore and extends a ridge over the coastal waters, with winds tending east to northeasterly.
Stack Island Temperature Statistics View More
June Temperature
Kiama (Bombo Headland) (3km)
Lowest 1 June, 2026
12 °CAverage June
15.1 °CHighest 3 June, 2026
20.4 °C
Climate (2021–Present)
Kiama (Bombo Headland) (3km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
17.9 °CAverage High 2021–2026
21.5 °C