Grants Lagoon Entrance Weather Forecast

    • 5
    • 16

    Partly cloudy

    • 9
    • 16

    Partly cloudy

    • 10
    • 14

    Showers

    • 5
    • 13

    Partly cloudy

    • 2
    • 14

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 6
    • 15

    Partly cloudy

Today 26 Jul St Helens

Partly cloudy. Light winds becoming northwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Westerly 15 to 20 knots, reaching up to 30 knots offshore during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Mostly sunny.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Lagoon Entrance Temperature Statistics View More

July Temperature

St Helens Aerodrome (9km)

  • Lowest 24 July, 2026

    1.3 °C

  • Average July

    9.8 °C

  • Highest 19 July, 2026

    17.3 °C

Climate (2021–2026)

St Helens Aerodrome (9km)

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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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