Swimcart Lagoon Entrance Weather Forecast

    • 8
    • 16

    Possible morning shower

    • 6
    • 17

    Mostly sunny

    • 7
    • 17

    Mostly sunny

    • 6
    • 15

    Partly cloudy

    • 5
    • 15

    Possible shower

    • 5
    • 15

    Shower or two

    • 6
    • 15

    Showers

Today 12 Aug St Helens

Partly cloudy. Medium chance of showers in the late morning. Winds northwesterly 20 to 25 km/h tending westerly 15 to 25 km/h in the middle of the day then becoming light in the evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northwesterly 20 to 25 knots, reaching up to 30 knots offshore during the day. Winds tending westerly in the middle of the day.
Seas
2 to 2.5 metres.
1st Swell
Southeast to southwesterly around 1 metre, increasing to 1 to 1.5 metres around midday, then decreasing to around 1 metre during the afternoon.
Weather
Partly cloudy. 80% chance of showers offshore, 50% chance elsewhere.
Weather Situation
A cold front is approaching Tasmania from the west, directing a northwesterly flow over the state. The cold front is expected to cross Tasmania today. A high pressure system over the mainland is forecast to direct a westerly flow over Tasmania on Thursday and persist into Friday. The high then moves over Tasmania on Saturday, bringing settled conditions.
Graph Plots Open in Graphs

  • 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

    9.3 °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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