Bass Islet Weather Forecast
- 11
- 20
Clear
- 11
- 24
Possible late shower
- 15
- 20
Mostly sunny
- 10
- 21
Mostly sunny
- 13
- 22
Shower or two developing
- 9
- 17
Shower or two. Windy
- 10
- 20
Sunny
Today 18 Sep Wollongong
Clear. Winds north to northeasterly 15 to 25 km/h turning west to northwesterly 15 to 20 km/h in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- North to northeasterly 15 to 20 knots tending north to northwesterly in the evening. Winds reaching up to 25 knots offshore north of Port Kembla in the late evening.
- Seas
- Around 1 metre, increasing to 1.5 metres offshore later in the evening.
- 1st Swell
- Southerly 1 to 1.5 metres.
- Weather
- Mostly clear.
- Weather Situation
- In the wake of a cold front, south to southwesterly winds will tend northerly and strengthen today as a high pressure system drifts across the coastal waters. Winds will shift west to southwesterly again over the weekend as a stronger cold front moves over NSW coastal waters, with southwesterly winds persisting into early next week as a series of fronts brush the south of the state.
Bass Islet Temperature Statistics View More
September Temperature
Bellambi (10km)
Lowest 1 September, 2025
9.1 °CAverage September
17.1 °CHighest 8 September, 2025
28.6 °C
Climate (2020–Present)
Bellambi (10km)
Average Low 2020–2025
15 °CAverage 2020–2025
17.9 °CAverage High 2020–2025
21.6 °C