Gerringong Weather Forecast
- 13
- 21
Clear
- 12
- 23
Sunny
- 16
- 23
Possible shower
- 17
- 21
Possible shower
- 16
- 22
Partly cloudy
- 17
- 24
Partly cloudy
- 18
- 26
Shower or two
Today 29 Dec Illawarra
Clear. Winds easterly 15 to 20 km/h becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Southeasterly 10 to 15 knots decreasing to about 10 knots in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southeasterly 1.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- South to southeasterly winds are gradually turning east to northeast as a high pressure ridge over the coastal waters is weakening. Then a trough will brush the coastal waters midweek, bringing a surge of fresh southerly winds along the coast, and this will be followed by another ridge extending from a high passing to the south of the state.
Gerringong Temperature Statistics View More
December Temperature
Kiama (Bombo Headland) (10km)
Lowest 2 December, 2025
11.9 °CAverage December
20.3 °CHighest 5 December, 2025
32.5 °C
Climate (2020–Present)
Kiama (Bombo Headland) (10km)
Average Low 2020–2025
14.8 °CAverage 2020–2025
17.8 °CAverage High 2020–2025
21.4 °C