Gerringong Weather Forecast
- 12
- 16
Showers
- 11
- 17
Mostly sunny
- 11
- 18
Partly cloudy
- 10
- 19
Partly cloudy
- 10
- 18
Mostly sunny
- 11
- 19
Mostly sunny
- 12
- 19
Partly cloudy
Today 17 Jul Illawarra
Cloudy. Medium chance of showers, most likely in the morning. The chance of morning fog about higher ground. Winds south to southwesterly 15 to 20 km/h tending south to southeasterly in the middle of the day then becoming light in the early afternoon. Overnight temperatures falling to between 5 and 10 with daytime temperatures reaching between 12 and 16.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- South to southeasterly 10 to 15 knots, reaching up to 20 knots inshore in the late morning and early afternoon.
- Seas
- Around 1 metre.
- 1st Swell
- Southerly 1 to 1.5 metres.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A coastal trough off the northern coast combines with a high pressure system over far southwestern New South Wales to drive a fresh south to southeasterly flow today, weakening along the southern half of the coast. The trough will deepen into a low pressure system over the northern Tasman Sea during the weekend, promoting strong southeasterly winds and large and powerful waves along the far north coast. Meanwhile, a ridge is forecast to build over the southern coastal waters later today, ahead of the high crossing during the weekend and early next week.
Gerringong Temperature Statistics View More
July Temperature
Kiama (Bombo Headland) (10km)
Lowest 11 July, 2026
8.6 °CAverage July
14 °CHighest 2 July, 2026
22.2 °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