Three Sisters Weather Forecast
- 10
- 23
Mostly clear
- 11
- 21
Shower or two
- 13
- 23
Morning shower or two
- 10
- 19
Showers developing
- 11
- 19
Possible shower
- 9
- 17
Shower or two
- 9
- 17
Shower or two. Becoming windy
Today 18 Dec Ulverstone
Mostly clear. Slight chance of a shower early this evening. Winds northwesterly 15 to 20 km/h becoming light in the late evening.
Central North Coastal Waters
Stanley to Flinders Island- Wind
- Variable about 10 knots becoming north to northwesterly 10 to 15 knots in the late afternoon then becoming variable about 10 knots in the late evening.
- Seas
- Below 1 metre.
- 1st Swell
- Westerly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A trough clears the northeast of Tasmania this evening, as weak ridge moves to the south, persisting during Friday. A broad area of low pressure is forecast to approach from the west late Friday, moving over the state on Saturday. A second, more intense, low pressure system is then forecast to move over eastern Tasmania late Sunday. The low is expected to clear to the east during Monday morning, with a westerly flow to develop behind it.
Three Sisters Temperature Statistics View More
December Temperature
Devonport Airport (25km)
Lowest 10 December, 2025
4.6 °CAverage December
13.7 °CHighest 10 December, 2025
22.2 °C
Climate (2020–Present)
Devonport Airport (25km)
Average Low 2020–2025
8.7 °CAverage 2020–2025
13 °CAverage High 2020–2025
17.7 °C