Jervis Bay Harbour Weather Forecast
- 6
- 15
Partly cloudy
- 6
- 17
Sunny
- 6
- 17
Mostly sunny
- 7
- 15
Possible shower
- 5
- 17
Mostly sunny
- 5
- 17
Mostly sunny
- 7
- 17
Partly cloudy
Today 15 Jul Illawarra
Partly cloudy. Areas of frost about the Southern Highlands early this morning. Winds westerly 25 to 35 km/h. Daytime maximum temperatures between 9 and 15.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Westerly 15 to 20 knots, reaching up to 25 knots offshore south of Port Kembla in the late morning and early afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Point Perpendicular during the morning.
- 1st Swell
- Southerly 1.5 metres, decreasing to around 1 metre during the afternoon, increasing to 1.5 metres south of Point Perpendicular by early evening.
- Weather
- Partly cloudy.
- Weather Situation
- A trough is developing in the state's far north and heading eastwards while a series of cold fronts brushes the far south and a high pressure ridge extends across the central areas, maintaining westerly airstream. Then, another trough looks set to brush the coast late Thursday through Friday, bringing a southerly wind change.
Jervis Bay Harbour Temperature Statistics View More
July Temperature
Point Perpendicular (9km)
Lowest 13 July, 2025
8.7 °CAverage July
13.4 °CHighest 6 July, 2025
19.4 °C
Climate (2020–Present)
Point Perpendicular (9km)
Average Low 2020–2025
14.7 °CAverage 2020–2025
17.4 °CAverage High 2020–2025
20.7 °C