Big Island Weather Forecast
- 12
- 22
Mostly sunny
- 14
- 20
Showers
- 13
- 19
Possible shower
- 12
- 21
Mostly sunny
- 13
- 21
Partly cloudy
- 12
- 22
Partly cloudy
- 13
- 21
Possible shower
Today 13 Jun Wollongong
Partly cloudy. Light winds becoming northerly 15 to 25 km/h in the middle of the day then becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northwesterly 10 to 15 knots turning northerly in the early morning. Winds reaching up to 20 knots offshore during the day.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres offshore during the morning.
- 1st Swell
- Southerly below 1 metre.
- Weather
- Mostly sunny.
- Weather Situation
- A high pressure system currently over the Tasman Sea extends a ridge over much of the state, bringing east to northeasterly winds to the coastal waters. A low pressure trough will cross the state during the weekend in association with a cold front skimming the south, maintaining east to northeasterly winds along the northern coast and bringing strengthening north to northeasterly winds to the central and southern coast today, then tending west to northwesterly on Sunday before of a southerly change reaches southern and central parts of the coast. On Monday, another high pressure system moves over the Tasman Sea extending a ridge over the state bringing predominantly southeast to northeasterly winds.
Big Island Temperature Statistics View More
June Temperature
Bellambi (13km)
Lowest 6 June, 2026
9.8 °CAverage June
15.8 °CHighest 10 June, 2026
22 °C
Climate (2021–Present)
Bellambi (13km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
18.1 °CAverage High 2021–2026
21.9 °C