Sloop Lagoon Entrance Weather Forecast

    • 13
    • 24

    Showers increasing

    • 11
    • 20

    Possible early shower

    • 11
    • 19

    Cloudy

    • 12
    • 23

    Partly cloudy

    • 16
    • 25

    Partly cloudy

    • 13
    • 23

    Cloud clearing

    • 14
    • 24

    Partly cloudy

Today 21 Jan St Helens

Mostly sunny morning. Very high chance of showers, most likely in the afternoon and evening. Light winds becoming northwest to northeasterly 15 to 20 km/h in the middle of the day then tending south to southwesterly 20 to 30 km/h in the evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Variable about 10 knots becoming north to northwesterly 15 to 20 knots in the middle of the day then tending west to northwesterly 15 to 25 knots in the late afternoon. Winds reaching up to 30 knots in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Easterly 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Mostly sunny. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sloop Lagoon Entrance Temperature Statistics View More

January Temperature

St Helens Aerodrome (14km)

  • Lowest 12 January, 2026

    9.4 °C

  • Average January

    17.3 °C

  • Highest 7 January, 2026

    33.6 °C

Climate (2021–Present)

St Helens Aerodrome (14km)

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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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