Sloop Reef Weather Forecast

    • 5
    • 16

    Shower or two

    • 9
    • 17

    Showers increasing

    • 7
    • 14

    Shower or two

    • 7
    • 17

    Possible shower

    • 6
    • 15

    Shower or two

    • 3
    • 17

    Partly cloudy

    • 4
    • 19

    Mostly sunny

Today 18 Sep St Helens

Partly cloudy. Medium chance of showers, most likely this evening. Light winds becoming north to northwesterly 25 to 35 km/h in the morning.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northwesterly 15 to 20 knots turning northerly 20 to 25 knots in the evening. Winds reaching up to 30 knots in the late evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon, then increasing to 1.5 to 2 metres later in the evening.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Partly cloudy.
Weather Situation
A westerly airstream over Tasmania tends northwesterly today, as a high pressure system over eastern Victoria moves eastwards over the northern Tasman Sea. A series of cold fronts are expected to pass over Tasmania from early Friday morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Sloop Reef Temperature Statistics View More

September Temperature

St Helens Aerodrome (14km)

  • Lowest 5 September, 2025

    1 °C
  • Average September

    11.2 °C
  • Highest 15 September, 2025

    20.8 °C

Climate (2020–Present)

St Helens Aerodrome (14km)

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  • Average Low 2020–2025

    9.4 °C
  • Average 2020–2025

    13.3 °C
  • Average High 2020–2025

    18.2 °C
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