Trefoil Island Weather Forecast
- 10
- 13
Shower
- 10
- 13
Shower
- 7
- 13
Partly cloudy
- 6
- 13
Partly cloudy
- 8
- 13
Partly cloudy
- 10
- 14
Partly cloudy
- 11
- 14
Shower
Today 13 Aug North West Coast
Cloudy. High chance of showers in the west, slight chance elsewhere. Winds westerly 20 to 30 km/h.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- Westerly 20 to 25 knots, reaching up to 30 knots south of King Island in the evening.
- Seas
- 1.5 to 2 metres.
- 1st Swell
- Southwesterly 3 to 5 metres.
- Weather
- Cloudy. 60% chance of showers.
- Weather Situation
- A high pressure system over the mainland is forecast to direct a westerly flow over Tasmania overnight and during Friday, with a weak cold front expected to brush the south of the state during Friday morning. The high will moves over Tasmania on Saturday and Sunday, then is expected to move to the east of the state during Monday.
Trefoil Island Temperature Statistics View More
August Temperature
Marrawah (30km)
Lowest 5 August, 2026
5.5 °CAverage August
9.3 °CHighest 2 August, 2026
14.5 °C
Climate (2021–2026)
Marrawah (30km)
Average Low 2021–2026
9.8 °CAverage 2021–2026
12.6 °CAverage High 2021–2026
16.9 °C