Grants Lagoon Entrance Weather Forecast

    • 14
    • 22

    Mostly sunny

    • 11
    • 21

    Sunny

    • 11
    • 24

    Partly cloudy

    • 16
    • 25

    Partly cloudy

    • 15
    • 21

    Cloudy

    • 14
    • 23

    Cloudy

    • 16
    • 25

    Shower or two

Today 25 Jan St Helens

Partly cloudy. Winds southerly 15 to 25 km/h tending south to southeasterly 25 to 40 km/h in the morning.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
North to northeasterly 15 to 20 knots shifting southerly 15 to 25 knots in the late morning. Winds reaching up to 30 knots during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2.5 metres around midday.
1st Swell
Southeasterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then tending south to southeasterly 1 to 1.5 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A cold front clears the state this morning, with a high pressure system expected to move in from the west today and move over the state on Monday to be in the Tasman Sea on Tuesday as a trough approaches from the west and crosses the state during the afternoon and evening. On Wednesday a ridge of high pressure extends from the west.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Lagoon Entrance Temperature Statistics View More

January Temperature

St Helens Aerodrome (9km)

  • Lowest 12 January, 2026

    9.4 °C
  • Average January

    17 °C
  • Highest 7 January, 2026

    33.6 °C

Climate (2021–Present)

St Helens Aerodrome (9km)

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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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