Halfmoon Bay Weather Forecast
- 12
- 26
Partly cloudy
- 13
- 24
Partly cloudy
- 12
- 17
Cloudy
- 11
- 17
Showers. Becoming windy
- 11
- 17
Shower or two. Windy
- 11
- 16
Shower or two. Becoming windy
- 11
- 17
Shower or two. Windy
Today 18 Dec King Island
Partly cloudy. Slight chance of a shower in the late afternoon and evening. The chance of a thunderstorm at night. Light winds. Daytime maximum temperatures in the mid to high 20s.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- Northwest to northeasterly 10 to 15 knots becoming variable about 10 knots in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Southwesterly around 1 metre, increasing to 1.5 metres south of King Island.
- Weather
- Partly cloudy. The chance of a thunderstorm offshore later tonight.
- Weather Situation
- A trough clears the northeast of Tasmania this evening, as weak ridge moves to the south, persisting during Friday. A broad area of low pressure is forecast to approach from the west late Friday, moving over the state on Saturday. A second, more intense, low pressure system is then forecast to move over eastern Tasmania late Sunday. The low is expected to clear to the east during Monday morning, with a westerly flow to develop behind it.
Halfmoon Bay Temperature Statistics View More
December Temperature
King Island Airport (8km)
Lowest 10 December, 2025
4.4 °CAverage December
13.7 °CHighest 12 December, 2025
24.7 °C
Climate (2020–Present)
King Island Airport (8km)
Average Low 2020–2025
10.1 °CAverage 2020–2025
13.5 °CAverage High 2020–2025
17.5 °C