Trefoil Island Weather Forecast
- 9
- 13
Shower
- 9
- 12
Shower
- 7
- 14
Shower
- 9
- 13
Rain
- 9
- 12
Rain
- 9
- 13
Windy
- 8
- 12
Windy
Today 6 Aug North West Coast
Cloudy. High chance of showers, becoming less likely later tonight. Winds west to northwesterly 15 to 25 km/h turning southwesterly 15 to 20 km/h in the evening.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- Southwesterly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres offshore.
- 1st Swell
- Southwesterly 1 to 2 metres, increasing to 2 to 3 metres south of King Island.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A weak cold front is crossing Tasmania, moving towards the east. A ridge of high pressure is expected to develop during Friday. The airstream will then tend northwesterly across Tasmania during Saturday as a strong cold front approaches from the west, expected to cross later Sunday. The airstream is then expected to tend southwesterly on Monday as the cold front moves into the Tasman Sea.
Trefoil Island Temperature Statistics View More
August Temperature
Marrawah (30km)
Lowest 5 August, 2026
5.5 °CAverage August
8.5 °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
17 °C