Swimcart Lagoon Entrance Weather Forecast
- 9
- 16
Shower or two
- 9
- 17
Mostly sunny
- 8
- 15
Partly cloudy
- 4
- 19
Sunny
- 5
- 16
Partly cloudy
- 5
- 21
Sunny
- 5
- 20
Sunny
Today 5 Sep St Helens
Partly cloudy. Medium chance of showers. Winds northwesterly 20 to 30 km/h turning southwesterly 15 to 20 km/h in the late evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Northwesterly 25 to 30 knots turning westerly 20 to 30 knots in the evening.
- Seas
- 2 to 3 metres.
- 1st Swell
- Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore later in the evening.
- Weather
- Cloudy. 80% chance of showers. The chance of a thunderstorm in the late afternoon and evening.
- Weather Situation
- A low pressure system near the west coast is directing a west to northwesterly flow over the State. The low will cross Tasmania early Saturday evening, with a west to southwesterly airstream then becoming established in its wake. A weaker cold front embedded in the westerly flow is forecast to cross the State early Monday, followed by another later Tuesday.
Swimcart Lagoon Entrance Temperature Statistics View More
September Temperature
St Helens Aerodrome (12km)
Lowest 4 September, 2026
6.1 °CAverage September
12.3 °CHighest 1 September, 2026
17.3 °C
Climate (2021–2026)
St Helens Aerodrome (12km)
Average Low 2021–2026
9.4 °CAverage 2021–2026
13.4 °CAverage High 2021–2026
18.3 °C