Stack Island Weather Forecast
- 21
- 24
Rain
- 21
- 25
Rain
- 20
- 25
Partly cloudy
- 21
- 29
Mostly sunny
- 21
- 26
Shower or two
- 17
- 22
Cloudy
- 19
- 23
Possible shower
Today 8 Feb Illawarra
Cloudy. Very high chance of rain, becoming less likely in the late afternoon and evening. The chance of a thunderstorm at night. Winds northeasterly 15 to 20 km/h becoming light in the late evening. Daytime maximum temperatures in the low to mid 20s.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northeasterly 15 to 25 knots.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Cloudy. 70% chance of showers. The chance of a thunderstorm at night.
- Weather Situation
- A high pressure system over the Tasman Sea extends a ridge over northern part of the coast, bringing moderate to fresh northeasterly winds to the northern and central parts of the coast, while a trough extends from northwestern NSW through to the southern coast, bringing easterly winds to the southern part of the coast. Winds will tend northeasterly along the whole coast again during today as the trough contracts away slightly from the coast, before another southerly change moves along southern and central parts of the coast Monday and Tuesday as the trough moves into the Tasman sea and a new ridge builds over the coast.
Stack Island Temperature Statistics View More
February Temperature
Kiama (Bombo Headland) (3km)
Lowest 2 February, 2026
15.1 °CAverage February
21.2 °CHighest 5 February, 2026
27.1 °C
Climate (2021–Present)
Kiama (Bombo Headland) (3km)
Average Low 2021–2026
14.7 °CAverage 2021–2026
17.8 °CAverage High 2021–2026
21.4 °C