Harbour Islets Weather Forecast
- 12
- 15
Cloudy
- 11
- 15
Rain
- 10
- 16
Shower
- 10
- 14
Shower
- 11
- 15
Windy
- 10
- 14
Windy
- 10
- 16
Windy
Today 20 Dec North West Coast
Partly cloudy. Winds westerly 25 to 35 km/h tending southwesterly in the evening then decreasing to 15 to 25 km/h in the late evening.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- West to southwesterly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres east of King Island.
- 1st Swell
- Southwesterly around 1 metre, increasing to 2 metres south of King Island.
- Weather
- Cloudy.
- Weather Situation
- A broad low pressure system near the west of Tasmania clears to the southeast into Sunday morning before a second, more intense, low pressure system is forecast to move across Bass Strait during Sunday and clear to the east Monday morning. A ridge of high pressure is expected to extend across the southern mainland, forecast to direct a westerly flow over Tasmania from Monday. Cold fronts embedded in the flow are expected to cross Tasmania late Monday and again Wednesday.
Harbour Islets Temperature Statistics View More
December Temperature
Marrawah (30km)
Lowest 1 December, 2025
7.3 °CAverage December
13.3 °CHighest 18 December, 2025
23 °C
Climate (2020–Present)
Marrawah (30km)
Average Low 2020–2025
9.7 °CAverage 2020–2025
12.6 °CAverage High 2020–2025
17 °C