Stack Island Weather Forecast
- 12
- 18
Partly cloudy
- 13
- 19
Showers increasing
- 13
- 21
Showers increasing
- 15
- 21
Early showers then sunny
- 13
- 18
Mostly sunny
- 11
- 17
Mostly sunny
- 10
- 15
Showers
Today 29 Jun Illawarra
Partly cloudy. Light winds.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northeasterly 15 to 20 knots.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore south of Port Kembla.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system over the southern Tasman Sea extends a ridge across the coastal waters, directing moderate to fresh north to northeasterly winds. Northerly winds will strengthen through the midweek ahead of a series of cold fronts crossing the state. Winds will then turn west to southwesterly later in the week following the passage of the fronts.
Stack Island Temperature Statistics View More
June Temperature
Kiama (Bombo Headland) (3km)
Lowest 23 June, 2026
9.8 °CAverage June
15.2 °CHighest 17 June, 2026
21.9 °C
Climate (2021–2026)
Kiama (Bombo Headland) (3km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
17.9 °CAverage High 2021–2026
21.5 °C