Swimcart Lagoon Entrance Weather Forecast

    • 10
    • 16

    Cloudy

    • 10
    • 15

    Showers

    • 4
    • 12

    Partly cloudy

    • 4
    • 14

    Partly cloudy

    • 9
    • 15

    Partly cloudy

    • 5
    • 16

    Sunny

    • 7
    • 15

    Shower or two

Today 21 Jul St Helens

Cloudy. Light winds becoming northwesterly 15 to 20 km/h in the middle of the day.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Westerly 15 to 20 knots turning northwesterly during the morning.
Seas
1 to 1.5 metres.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure centre over the Tasman Sea is directing a northwesterly flow over Tasmania. A weak trough is positioned over the west of the state. A strong cold front is forecast to move over the state from the west late Wednesday and another cold front follows on Thursday, bringing strong west to southwesterly winds across the state.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swimcart Lagoon Entrance Temperature Statistics View More

July Temperature

St Helens Aerodrome (12km)

  • Lowest 11 July, 2026

    3.4 °C

  • Average July

    9.7 °C

  • Highest 19 July, 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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