Sterile Island Weather Forecast
- 13
- 23
Windy
- 10
- 29
Partly cloudy
- 15
- 26
Shower
- 13
- 19
Shower
- 9
- 15
Shower
- 6
- 13
Shower
- 5
- 15
Shower
Today 21 Oct South East
Mostly sunny. Slight chance of a shower. Winds northwest to southwesterly 15 to 25 km/h tending southeast to southwesterly in the early afternoon then tending northeast to southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures 20 to 25.
South East Coastal Waters
Tasman Island to South East Cape- Wind
- West to southwesterly 15 to 20 knots, reaching up to 25 knots inshore in the late afternoon.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres around midday.
- 1st Swell
- Southwesterly 2 metres, increasing to 2 to 3 metres around midday.
- Weather
- Mostly sunny.
- Weather Situation
- A blocking high over the Tasman Sea directs a warm northwesterly flow over Tasmania this week. A weak trough lingers over the state today. A decaying cold front is expected to move over Tasmania on Friday, with a stronger cold front forecast to quickly follow on Saturday.
Sterile Island Temperature Statistics View More
October Temperature
Cape Bruny (14 km)
Lowest 13 October, 2026
4.9 °CAverage October
12.5 °CHighest 18 October, 2026
25 °C
Climate (2021–2026)
Cape Bruny (14 km)
Average Low 2021–2026
9.7 °CAverage 2021–2026
12.5 °CAverage High 2021–2026
16.6 °C