Gerringong Weather Forecast
- 14
- 21
Wind easing. Mostly sunny
- 13
- 20
Showers increasing
- 12
- 18
Morning shower or two
- 11
- 17
Shower or two
- 10
- 18
Partly cloudy
- 11
- 20
Mostly sunny
- 12
- 21
Sunny
Today 6 Sep Illawarra
Mostly sunny. Winds westerly 30 to 45 km/h tending southeast to southwesterly 15 to 25 km/h in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 7 and 13 with daytime temperatures reaching between 18 and 23.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Westerly 20 to 30 knots turning southerly in the middle of the day.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southerly below 1 metre, increasing to 2 to 3 metres during the morning.
- Weather
- Sunny.
- Weather Situation
- A cold front is crossing northeast NSW Sunday morning then will move offshore into the Tasman Sea through the day. Another weak ridge is forecast in the wake of the front Sunday, followed by a series of fronts slipping south of the state through Monday onwards.
Gerringong Temperature Statistics View More
September Temperature
Kiama (Bombo Headland) (10km)
Lowest 1 September, 2026
11.1 °CAverage September
18.6 °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