Big Lagoon Entrance Weather Forecast

    • 14
    • 25

    Possible shower

    • 17
    • 24

    Possible shower. Very windy

    • 10
    • 20

    Mostly sunny

    • 11
    • 23

    Mostly sunny

    • 12
    • 23

    Partly cloudy

    • 15
    • 21

    Shower or two

    • 14
    • 20

    Shower or two

Today 9 Jan St Helens

Partly cloudy. Medium chance of showers. Winds north to northwesterly 20 to 25 km/h.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northwest to northeasterly 10 to 15 knots, reaching up to 20 knots inshore.
Seas
Around 1 metre.
1st Swell
Northeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Partly cloudy. The chance of a thunderstorm offshore.
Weather Situation
A strong cold front approaching from the west will enter the west coast late Friday. This front will cross over Tasmania early Saturday, followed by a post frontal trough in the afternoon. A ridge of high pressure will begin to develop from the west on Sunday, with multiple small high pressure centres crossing over the state in the following days. This broad ridge will persist over Tasmania into Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Big Lagoon Entrance Temperature Statistics View More

January Temperature

St Helens Aerodrome (17km)

  • Lowest 1 January, 2026

    10.2 °C

  • Average January

    18.7 °C

  • Highest 7 January, 2026

    33.6 °C

Climate (2021–Present)

St Helens Aerodrome (17km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    13.3 °C

  • Average High 2021–2026

    18.2 °C
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