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.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swimcart Lagoon Entrance Temperature Statistics View More

September Temperature

St Helens Aerodrome (12km)

  • Lowest 4 September, 2026

    6.1 °C
  • Average September

    12.3 °C
  • Highest 1 September, 2026

    17.3 °C

Climate (2021–2026)

St Helens Aerodrome (12km)

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  • Average Low 2021–2026

    9.4 °C
  • Average 2021–2026

    13.4 °C
  • Average High 2021–2026

    18.3 °C
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