Gerringong Weather Forecast
- 14
- 30
Windy. Mostly sunny
- 14
- 21
Mostly sunny
- 13
- 20
Shower or two
- 12
- 17
Possible morning shower
- 11
- 18
Shower or two
- 11
- 18
Mostly sunny
- 11
- 20
Sunny
Today 5 Sep Illawarra
Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. Damaging winds possible. Winds northwesterly 35 to 55 km/h turning westerly 25 to 40 km/h in the late afternoon. Daytime maximum temperatures 24 to 30.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northerly 15 to 25 knots turning west to northwesterly in the late afternoon. Winds reaching up to 30 knots offshore south of Port Kembla in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 2 metres around midday.
- 1st Swell
- Southerly around 1 metre.
- Weather
- Mostly sunny day. The chance of a thunderstorm offshore north of Port Kembla in the evening.
- Weather Situation
- North to northwesterly winds over Coastal Waters ahead of a vigorous cold front crossing the waters late today into Sunday. Winds turning westerly in behind the front before tending southwesterly to southerly as a high pressure ridge begins to form over the NSW coast. The ridge will persist into the new week.
Gerringong Temperature Statistics View More
September Temperature
Kiama (Bombo Headland) (10km)
Lowest 1 September, 2026
11.1 °CAverage September
18.8 °CHighest 2 September, 2026
27.3 °C
Climate (2021–2026)
Kiama (Bombo Headland) (10km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
17.9 °CAverage High 2021–2026
21.5 °C