View the current warnings for Tasmania
Forecast issued at 10:00 pm EST on Friday 18 September 2026.
Weather Situation
A high to the north of Tasmania is combining with a cold front passing to the south of Tasmania to direct a vigorous westerly flow over the state, with these conditions to continue overnight and early Saturday. A weak ridge is forecast to extend over Tasmania on Saturday afternoon and evening, ahead of another cold front to cross the state on Sunday evening. The flow will tend colder southwesterly on Monday morning, with a high to establish over the Bight. This high is expected to move to the north of Tasmania on Tuesday morning and lie to the northeast of the state by Tuesday evening.
Forecast for Friday until midnight
Strong Wind Warning for Friday for Derwent Estuary
- Winds
- Westerly 20 to 30 knots.
- Seas
- 1 to 1.5 metres.
- Weather
- Partly cloudy.
Saturday 19 September
Strong Wind Warning for Saturday for Derwent Estuary
- Winds
- Westerly 25 to 30 knots tending northwest to southwesterly 15 to 20 knots before dawn then becoming variable about 10 knots in the evening.
- Seas
- Around 1 metre.
- Weather
- Mostly sunny.
Sunday 20 September
- Winds
- Northwesterly 10 to 15 knots increasing to 15 to 25 knots in the middle of the day then tending westerly 15 to 20 knots in the evening.
- Seas
- Below 0.5 metres, increasing to around 1 metre during the morning.
- Weather
- Mostly sunny.
Monday 21 September
- Winds
- Westerly 15 to 20 knots.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy. 50% chance of showers.
Tuesday 22 September
- Winds
- Northwesterly 10 to 15 knots tending east to southeasterly during the afternoon then becoming northwesterly below 10 knots during the evening.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy.
Please be awareWind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.
- This forecast is also available via scheduled broadcasts on marine radio.
- Latest Coastal Observations
- Tide Predictions
- Marine Knowledge Centre - explanations and definitions
The next routine forecast will be issued at 4:00 am EST Saturday.
Product IDT12420