Trefoil Island Weather Forecast
- 17
- 23
Storm
- 14
- 20
Shower
- 15
- 20
Shower
- 13
- 21
Partly cloudy
- 14
- 19
Sunny
- 14
- 22
Shower
- 14
- 19
Shower
Today 17 Feb North West Coast
Partly cloudy. The chance of fog in the east early this morning. Very high chance of showers, most likely during this afternoon and evening. The chance of a thunderstorm during this afternoon and evening, possibly severe with damaging winds and heavy rain which may lead to flash flooding in the west during this afternoon and early evening. Winds east to northeasterly 30 to 45 km/h tending northwest to northeasterly 20 to 30 km/h in the early afternoon then tending northwest to southwesterly in the evening. Daytime maximum temperatures in the low to high 20s.
Far Northwest Coastal Waters
Sandy Cape to Stanley including King Island- Wind
- East to northeasterly 20 to 30 knots tending northwest to southwesterly 15 to 25 knots in the early afternoon then tending westerly 20 to 30 knots in the late evening.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- Becoming cloudy. 95% chance of showers. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A high pressure centre is to the east of Tasmania over the Tasman Sea ahead of a cold front forecast to approach from the west today, crossing the state during the afternoon. A ridge of high pressure is expected to develop over southeastern parts of the mainland on Wednesday, maintaining a westerly flow over Tasmania, until the ridge moves over Tasmania on Thursday, forecast to move eastwards over the Tasman Sea by Friday.
Trefoil Island Temperature Statistics View More
February Temperature
Marrawah (30km)
Lowest 12 February, 2026
8.5 °CAverage February
15.4 °CHighest 10 February, 2026
23.4 °C
Climate (2021–Present)
Marrawah (30km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
12.6 °CAverage High 2021–2026
17.1 °C