Grassy Harbour Weather Forecast
- 12
- 18
Partly cloudy
- 12
- 21
Partly cloudy
- 14
- 20
Shower or two clearing
- 14
- 20
Mostly sunny
- 14
- 20
Windy. Partly cloudy
- 14
- 21
Windy. Partly cloudy
- 14
- 21
Windy. Partly cloudy
Today 13 Jan King Island
Partly cloudy. Winds southerly 20 to 30 km/h.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots east of King Island in the evening.
- Seas
- 1 to 1.5 metres.
- 1st Swell
- Southwesterly 1 to 1.5 metres, increasing to 2 metres south of King Island.
- Weather
- Partly cloudy.
- Weather Situation
- A trough lies through eastern parts of Bass Strait while a weak ridge of high pressure remains across the remainder of Tasmania. The ridge will strengthen over the weekend as the high pressure centre moves south of the state into the Tasman Sea.
Grassy Harbour Temperature Statistics View More
January Temperature
King Island Airport (25km)
Lowest 12 January, 2026
8 °CAverage January
15.8 °CHighest 7 January, 2026
30.4 °C
Climate (2021–Present)
King Island Airport (25km)
Average Low 2021–2026
10.1 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
17.5 °C