Swimcart Lagoon Entrance Weather Forecast
- 9
- 17
Partly cloudy
- 8
- 14
Showers
- 6
- 17
Partly cloudy
- 4
- 18
Mostly sunny
- 7
- 17
Partly cloudy
- 5
- 18
Mostly sunny
- 4
- 19
Sunny
Today 24 Aug St Helens
Partly cloudy. Slight chance of a shower, becoming less likely this afternoon. Winds northwesterly 20 to 30 km/h becoming light in the evening.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Northwesterly 15 to 25 knots decreasing to 10 to 15 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system lies well to the east of Tasmania, with a cold front forecast to approach and cross the State today. A low pressure system will move south over Victoria on Tuesday morning and lie near the east and south of Tasmania by late Tuesday, with the low to move away to the east on Wednesday morning. A high pressure system over South Australia is expected to extend a ridge over Tasmania later Wednesday, with the high to move to the north of the state on Thursday and another cold front to approach the southwest late.
Swimcart Lagoon Entrance Temperature Statistics View More
August Temperature
St Helens Aerodrome (12km)
Lowest 23 August, 2026
2.5 °CAverage August
10.5 °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