Stack Island Weather Forecast
- 17
- 20
Shower or two
- 16
- 21
Shower or two
- 14
- 23
Partly cloudy
- 17
- 28
Possible late shower
- 18
- 22
Shower or two
- 17
- 25
Partly cloudy
- 19
- 28
Possible shower
Today 4 Apr Illawarra
Cloudy. Medium chance of showers near the coast, slight chance elsewhere. Winds south to southeasterly 15 to 20 km/h.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southeasterly 10 to 15 knots, reaching up to 20 knots offshore.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore south of Point Perpendicular.
- 1st Swell
- Southerly 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- South to southeasterly winds through the weekend as a weakening trough moves up the coast while a high drifts across Tasmania and enters the Tasman Sea during Sunday. The high will extend a ridge over coastal waters into early next week. Winds are forecast to shift north on Tuesday ahead of the next cold front, which is expected to bring a southerly change in the evening.
Stack Island Temperature Statistics View More
April Temperature
Kiama (Bombo Headland) (3km)
Lowest 1 April, 2026
17.2 °CAverage April
21 °CHighest 2 April, 2026
26.6 °C
Climate (2021–Present)
Kiama (Bombo Headland) (3km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
17.8 °CAverage High 2021–2026
21.4 °C