Swimcart Lagoon Entrance Weather Forecast

    • 6
    • 16

    Showers increasing

    • 9
    • 14

    Rain

    • 9
    • 16

    Shower or two

    • 8
    • 15

    Shower or two

    • 5
    • 16

    Partly cloudy

    • 6
    • 17

    Partly cloudy

    • 6
    • 13

    Partly cloudy

Today 9 Aug St Helens

Partly cloudy. High chance of showers, most likely in the evening. Winds northeasterly 15 to 25 km/h tending northerly 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
Northerly 15 to 20 knots, reaching up to 30 knots offshore in the late evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon, then increasing to 1.5 to 2 metres later in the evening.
1st Swell
Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres during the afternoon, increasing to 1.5 to 2 metres offshore later in the evening.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A front, sitting over the Bight, approaches Tasmania from the west. A low is expected to develop on the front and move over southeastern SA during today. The low moves over or near Bass Strait Monday morning, and moves further east to be off the east coast of Tasmania in the evening. A weak ridge is expected to cross over Tuesday before a cold front during Wednesday morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Swimcart Lagoon Entrance Temperature Statistics View More

August Temperature

St Helens Aerodrome (12km)

  • Lowest 1 August, 2026

    3 °C
  • Average August

    8.6 °C
  • Highest 6 August, 2026

    16.3 °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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