Kiama Harbour Weather Forecast
- 15
- 22
Shower or two
- 9
- 16
Windy. Partly cloudy
- 10
- 17
Cloud clearing
- 9
- 21
Sunny
- 15
- 25
Sunny
- 14
- 26
Sunny
- 18
- 22
Shower or two
Today 15 Sep Illawarra
Cloudy. Medium chance of showers. Winds south to southwesterly 15 to 20 km/h.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southerly 25 to 30 knots.
- Seas
- 2.5 to 3 metres.
- 1st Swell
- Southerly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore south of Point Perpendicular.
- Weather
- Cloudy.
- Weather Situation
- A trough and a cold front systems are crossing the coastal waters today into early Wednesday, with strong to gale-force southerly winds and large powerful waves in its wake. Winds and waves will gradually ease from late Thursday onwards as a high pressure system moves across the state later in the week into the weekend, while extending a ridge across the coastal waters.
Kiama Harbour Temperature Statistics View More
September Temperature
Kiama (Bombo Headland) (1km)
Lowest 9 September, 2026
9.5 °CAverage September
16.8 °CHighest 5 September, 2026
29.8 °C
Climate (2021–2026)
Kiama (Bombo Headland) (1km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
17.9 °CAverage High 2021–2026
21.5 °C