Swimcart Lagoon Entrance Weather Forecast
- 6
- 21
Clear
- 6
- 18
Mostly sunny
- 7
- 18
Showers increasing
- 7
- 16
Becoming cloudy
- 10
- 17
Shower or two. Becoming windy
- 7
- 16
Showers
- 9
- 16
Shower or two
Today 30 Aug St Helens
Clear. Light winds.
East of Flinders Island Coastal Waters
North Flinders Island to St Helens Point- Wind
- Westerly 20 to 25 knots, reaching up to 30 knots offshore during the afternoon and evening.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
- Weather
- Mostly clear.
- Weather Situation
- A high pressure ridge extends over the southern mainland maintaining a westerly flow over Tasmania today, continuing into Monday before the high centre is forecast to drift into the Tasman Sea late Monday. A cold front is expected to approach from the west and cross Tasmania on Tuesday, followed by persistent westerly flow for the remainder of the week. A cold front embedded in the westerly flow is forecast to cross during Thursday.
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