Swimcart Lagoon Entrance Weather Forecast

    • 3
    • 16

    Sunny

    • 4
    • 19

    Partly cloudy

    • 12
    • 23

    Shower or two

    • 12
    • 20

    Showers

    • 10
    • 15

    Shower or two

    • 7
    • 16

    Partly cloudy

    • 8
    • 17

    Cloudy

Today 28 Sep St Helens

Sunny. Light winds becoming northeasterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
West to southwesterly about 10 knots becoming north to northwesterly in the middle of the day.
Seas
Below 1 metre.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 1 to 2 metres offshore.
Weather
Mostly sunny.
Weather Situation
A high pressure system centred to the west of Tasmania extends a ridge over the state, forecast to move across the state during Monday before moving over the Tasman Sea during Tuesday. Northerly flow is expected to build during Tuesday over Tasmania ahead of an approaching trough, forecast to cross during early Wednesday. A broad trough is forecast to cross the state during Thursday, ahead of an approaching cold front.
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 22 September, 2026

    1.7 °C

  • Average September

    12.2 °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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