Grants Lagoon Entrance Weather Forecast

    • 11
    • 21

    Partly cloudy

    • 11
    • 19

    Showers increasing

    • 6
    • 14

    Shower or two

    • 6
    • 16

    Partly cloudy

    • 6
    • 19

    Sunny

    • 7
    • 19

    Partly cloudy

    • 7
    • 17

    Partly cloudy

Today 5 May 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
Westerly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
Seas
Around 1 metre, increasing to 1.5 to 2.5 metres offshore.
1st Swell
Northeasterly 1 to 1.5 metres, increasing to 1 to 2 metres near Eddystone Point.
Weather
Partly cloudy.
Weather Situation
A cold front approaches Tasmania from the west and is forecast to cross the state on Wednesday. In its wake, a cold southwesterly airstream will prevail on Thursday and Friday, before weakening on Saturday as a ridge of high pressure moves in from the west.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Lagoon Entrance Temperature Statistics View More

May Temperature

St Helens Aerodrome (9km)

  • Lowest 3 May, 2026

    11.3 °C

  • Average May

    16.2 °C

  • Highest 1 May, 2026

    24.9 °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

    18.3 °C
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