Stack Island Weather Forecast
- 9
- 17
Clear
- 9
- 17
Sunny
- 9
- 17
Sunny
- 8
- 17
Mostly sunny
- 11
- 18
Showers increasing
- 12
- 17
Shower or two
- 10
- 19
Sunny
Today 5 Aug Illawarra
Clear. Winds westerly 15 to 25 km/h.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Westerly 15 to 20 knots, reaching up to 25 knots offshore south of Port Kembla.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore north of Point Perpendicular.
- 1st Swell
- Southerly around 1 metre.
- Weather
- Mostly clear.
- Weather Situation
- A low pressure system near Tasmania is slowly moving eastwards, maintaining moderate to fresh west to southwesterly winds over the southern and central coastal waters. Winds will gradually ease and become light and variable later in the week as the low weakens and moves further east, and a high pressure system moves across the New South Wales. Winds will then turn northerly and strengthen through the weekend ahead of a strong cold front that will cross the coastal waters late this weekend into early next week.
Stack Island Temperature Statistics View More
August Temperature
Kiama (Bombo Headland) (3km)
Lowest 2 August, 2026
9.8 °CAverage August
13.8 °CHighest 3 August, 2026
21.6 °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