Bay of Islands Weather Forecast
- 5
- 13
Partly cloudy
- 5
- 15
Sunny
- 8
- 17
Shower or two
- 9
- 15
Shower or two
- 8
- 14
Shower or two
- 8
- 13
Showers
- 6
- 13
Shower or two
Today 17 Aug South East
Partly cloudy. Light winds.
South East Coastal Waters
Tasman Island to South East Cape- Wind
- Northeasterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system lies just to the east of Tasmania and is expected to slowly move away towards New Zealand during Tuesday and Wednesday. A northerly stream will develop over Tasmania on Tuesday and persist into Wednesday, ahead of a trough to cross the state during Wednesday evening and early Thursday morning. Another trough is expected to cross Tasmania during Thursday, with a west to northwesterly stream to develop and persist through Friday.
Bay of Islands Temperature Statistics View More
August Temperature
Cape Bruny (18km)
Lowest 5 August, 2026
4.7 °CAverage August
9.7 °CHighest 9 August, 2026
15.7 °C
Climate (2021–2026)
Cape Bruny (18km)
Average Low 2021–2026
9.6 °CAverage 2021–2026
12.5 °CAverage High 2021–2026
16.5 °C