Fossil Island Weather Forecast
- 11
- 22
Mostly clear
- 11
- 29
Mostly sunny
- 13
- 20
Shower or two
- 11
- 17
Cloudy
- 12
- 20
Showers
- 12
- 20
Shower or two
- 12
- 21
Shower or two
Today 16 Dec South East
Partly cloudy. Winds west to northwesterly 25 to 35 km/h decreasing to 15 to 25 km/h in the evening. Daytime maximum temperatures between 16 and 23.
Lower East Coastal Waters
Wineglass Bay to Tasman Island- Wind
- North to northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the late afternoon. Winds tending east to northeasterly in the late afternoon.
- Seas
- 1 to 1.5 metres, decreasing below 1 metre by early evening.
- 1st Swell
- South to southwesterly 1.5 to 2.5 metres inshore, increasing to 2.5 to 4 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure system in Bass Strait will maintain a ridge across Tasmania as it drifts into the Tasman Sea on Wednesday. A trough will cross over the state on Thursday with a broad low pressure system developing off the west coast while a weak ridge slides along the south and the east on Friday. On Saturday the low pressure system will move to the south with an associated trough crossing the state.
Fossil Island Temperature Statistics View More
December Temperature
Tasman Island (23km)
Lowest 7 December, 2025
5.4 °CAverage December
11.8 °CHighest 4 December, 2025
24.6 °C
Climate (2020–Present)
Tasman Island (23km)
Average Low 2020–2025
9.3 °CAverage 2020–2025
11.5 °CAverage High 2020–2025
14.5 °C