Swimcart Lagoon Entrance Weather Forecast

    • 4
    • 21

    Partly cloudy

    • 13
    • 22

    Shower or two

    • 10
    • 15

    Showers

    • 5
    • 14

    Partly cloudy

    • 4
    • 16

    Mostly sunny

    • 4
    • 19

    Mostly sunny

    • 9
    • 22

    Shower or two

Today 24 Sep St Helens

Partly cloudy. Slight chance of a shower at night. Winds northeasterly 15 to 20 km/h tending northerly in the early afternoon then becoming light in the evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northerly about 10 knots increasing to 10 to 15 knots in the middle of the day.
Seas
Around 1 metre.
1st Swell
Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Cloudy.
Weather Situation
A ridge extending over Tasmania from a high pressure system in the Tasman Sea will weaken today, as a trough approaches from the west in the evening. Another weak 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, and move over on Sunday.
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

    12.1 °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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