Swimcart Lagoon Entrance Weather Forecast
- 12
- 20
Shower or two
- 9
- 16
Mostly sunny
- 6
- 16
Becoming cloudy
- 7
- 16
Partly cloudy
- 9
- 18
Shower or two
- 11
- 19
Possible shower
- 10
- 21
Partly cloudy
Today 12 Oct St Helens
Partly cloudy. Medium chance of showers, becoming less likely this morning. Winds west to northwesterly 25 to 40 km/h.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- North to northwesterly 15 to 25 knots turning westerly 20 to 25 knots in the late morning and early afternoon. Winds reaching up to 30 knots during the afternoon and evening.
- Seas
- 1.5 to 2 metres, increasing to 2 to 3 metres during the afternoon.
- 1st Swell
- Southerly around 1 metre offshore.
- Weather
- Partly cloudy. 80% chance of showers.
- Weather Situation
- Northwesterly flow continues ahead of an approaching cold front crossing the state this morning followed quickly by a second cold front expected to move across the state during the evening. This second front will shift the flow into a colder southwesterly one by Tuesday. A high pressure centre is forecast to approach the west of Tasmania during Wednesday and move over the state into Thursday.
Swimcart Lagoon Entrance Temperature Statistics View More
October Temperature
St Helens Aerodrome (12 km)
Lowest 7 October, 2026
5.7 °CAverage October
13.4 °CHighest 1 October, 2026
22.4 °C
Climate (2021–2026)
St Helens Aerodrome (12 km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.5 °CAverage High 2021–2026
18.4 °C