Sussex Inlet Weather Forecast
- 11
- 17
Rain
- 12
- 19
Showers easing
- 10
- 19
Shower or two
- 10
- 18
Shower or two
- 9
- 19
Partly cloudy
- 9
- 21
Mostly sunny
- 12
- 21
Shower or two
Today 21 Aug Illawarra
Cloudy. Very high chance of rain. The chance of a thunderstorm along the coastal fringe. Winds east to southeasterly 15 to 20 km/h tending east to northeasterly 15 to 25 km/h during the day. Overnight temperatures falling to between 7 and 11 with daytime temperatures reaching between 11 and 16.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northeasterly 15 to 25 knots, reaching up to 30 knots offshore south of Port Kembla in the late evening.
- Seas
- 1.5 to 2 metres.
- 1st Swell
- Easterly 1.5 metres, increasing to 1.5 to 2 metres during the morning, then tending northeasterly 1.5 to 2 metres during the afternoon.
- Weather
- Cloudy. 95% chance of rain. The chance of a thunderstorm.
- Weather Situation
- A trough lies near the coast while a high pressure system over the southwestern Tasman Sea is slowly drifting eastwards, bringing east to northeasterly winds along the coast. The trough will move offshore on Friday, while another trough brushes the coast on Saturday, with fresh southerly winds in its wake. These two troughs may interact and form an offshore low pressure system before heading further eastwards, then winds will tend northerly early next week as a high pressure ridge drifts across the state. Then, a series of cold fronts looks set to cross the coastal waters mid-next week.
Sussex Inlet Temperature Statistics View More
August Temperature
Point Perpendicular (19km)
Lowest 17 August, 2025
7.8 °CAverage August
13 °CHighest 5 August, 2025
20.2 °C
Climate (2020–Present)
Point Perpendicular (19km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
20.7 °C