Halfmoon Bay Weather Forecast
- 10
- 15
Cloudy
- 7
- 18
Showers increasing. Windy
- 10
- 15
Showers increasing. Windy
- 11
- 15
Showers easing. Windy
- 11
- 16
Showers increasing
- 11
- 15
Showers. Windy
- 9
- 14
Showers
Today 31 Aug King Island
Cloudy. Slight chance of a shower, becoming less likely in the late morning. Winds westerly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures around 15.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- Westerly 10 to 15 knots turning northwesterly in the evening. Winds reaching up to 20 knots offshore early in the morning and again in the late evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre during the morning.
- 1st Swell
- Southwesterly 2 to 3 metres, increasing to 3 to 4 metres south of King Island.
- Weather
- Cloudy.
- Weather Situation
- A high pressure ridge extends over the southern mainland maintaining a westerly flow over Tasmania today, before the high centre drifts into the Tasman Sea later tonight. A cold front is expected to approach from the west and cross Tasmania on Tuesday, followed by persistent westerly flow for the remainder of the week. A cold front embedded in the westerly flow is forecast to cross during Thursday.
Halfmoon Bay Temperature Statistics View More
August Temperature
King Island Airport (8km)
Lowest 16 August, 2026
4.3 °CAverage August
11.7 °CHighest 18 August, 2026
17.6 °C
Climate (2021–2026)
King Island Airport (8km)
Average Low 2021–2026
10.2 °CAverage 2021–2026
13.6 °CAverage High 2021–2026
17.6 °C