Swimcart Lagoon Entrance Weather Forecast
- 6
- 16
Partly cloudy
- 6
- 17
Sunny
- 8
- 17
Sunny
- 4
- 18
Sunny
- 5
- 19
Sunny
- 6
- 19
Mostly sunny
- 8
- 18
Showers
Today 26 Aug St Helens
Partly cloudy. Winds southwesterly 15 to 20 km/h.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- South to southwesterly 15 to 20 knots.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres offshore.
- 1st Swell
- Southerly around 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system over South Australia will extend a ridge over Tasmania this evening, with the high to move to north of the state on Thursday. A cold front will approach the southwest late Thursday and cross Tasmania early Friday. Another high pressure system is expected to build south of the Bight on Saturday and extend a ridge to the north of Tasmania, with the high centre to move near Adelaide on Sunday and extend a ridge over Tasmania.
Swimcart Lagoon Entrance Temperature Statistics View More
August Temperature
St Helens Aerodrome (12km)
Lowest 23 August, 2026
2.5 °CAverage August
10.8 °CHighest 13 August, 2026
19.2 °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