Swimcart Lagoon Entrance Weather Forecast

    • 3
    • 16

    Clear

    • 4
    • 19

    Sunny

    • 5
    • 20

    Partly cloudy

    • 12
    • 24

    Shower or two

    • 10
    • 16

    Showers

    • 4
    • 15

    Partly cloudy

    • 3
    • 16

    Partly cloudy

Today 22 Sep St Helens

Clear. Light winds.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
North to northwesterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Clear.
Weather Situation
A high pressure system centred over Bass Strait moves eastwards to lie over the northern Tasman Sea during Wednesday and Thursday, maintaining ridge dominated conditions over Tasmania. A trough is forecast to move over the state from the west during Friday ahead of a cold front to cross later. A secondary high pressure system is forecast to extend a ridge over Tasmania from the southwest during Saturday.
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 17 September, 2026

    2.2 °C

  • Average September

    12.5 °C

  • Highest 20 September, 2026

    23.6 °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

    18.4 °C
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