Grants Lagoon Entrance Weather Forecast

    • 9
    • 18

    Cloudy

    • 12
    • 23

    Partly cloudy

    • 12
    • 24

    Mostly sunny

    • 11
    • 22

    Partly cloudy

    • 12
    • 21

    Showers increasing

    • 9
    • 19

    Showers easing

    • 9
    • 17

    Shower or two

Today 29 Apr St Helens

Partly cloudy. Slight chance of a shower. Light winds.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Southwesterly 10 to 15 knots shifting northeasterly in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A near-stationary high-pressure system over the Tasman Sea extends a ridge across Tasmania, directing a mostly west to northwesterly flow over the State until the end of the week. Fresh westerly winds behind a cold front in southern Tasmania early this morning easing to light winds today as a weak high pressure system crosses the State, then warm north to northwesterly flow persisting until later in the weekend as a stronger, slow-moving cold front builds over the Bight, expected to move over Tasmania early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Lagoon Entrance Temperature Statistics View More

April Temperature

St Helens Aerodrome (9km)

  • Lowest 19 April, 2026

    4.3 °C

  • Average April

    14.2 °C

  • Highest 1 April, 2026

    26 °C

Climate (2021–Present)

St Helens Aerodrome (9km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.2 °C
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