Grants Lagoon Entrance Weather Forecast

    • 13
    • 23

    Clear

    • 12
    • 20

    Possible shower

    • 10
    • 18

    Becoming windy. Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 11
    • 19

    Shower or two

    • 8
    • 18

    Shower or two

    • 8
    • 17

    Shower or two

Today 25 Nov St Helens

Partly cloudy. Medium chance of showers in the early afternoon. The chance of a thunderstorm in the afternoon. Winds northwest to northeasterly 15 to 20 km/h becoming northwesterly 20 to 30 km/h in the early afternoon then tending northerly 15 to 20 km/h in the late evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northeasterly 15 to 20 knots shifting westerly 15 to 25 knots in the middle of the day. Winds reaching up to 30 knots during the afternoon and evening.
Seas
1.5 to 2 metres, increasing to 2 to 3 metres during the afternoon.
1st Swell
Easterly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
A trough crossing over the state from the northeast and is expected to move east throughout the day. A low pressure system located well to the southwest draws an associated cold front over the state later on Wednesday, to be followed by a prevailing westerly flow on Thursday and into Friday. A weak cold front approaches the west late Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Lagoon Entrance Temperature Statistics View More

November Temperature

St Helens Aerodrome (9km)

  • Lowest 21 November, 2025

    4.8 °C

  • Average November

    13.1 °C

  • Highest 10 November, 2025

    21.3 °C

Climate (2020–Present)

St Helens Aerodrome (9km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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