Dianas Basin Weather Forecast

    • 12
    • 20

    Mostly clear

    • 9
    • 16

    Partly cloudy

    • 6
    • 16

    Partly cloudy

    • 7
    • 17

    Partly cloudy

    • 10
    • 17

    Cloudy

    • 10
    • 20

    Partly cloudy

    • 10
    • 21

    Mostly sunny

Today 12 Oct St Helens

Mostly clear. Winds northwesterly 20 to 25 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
West to northwesterly 15 to 20 knots, reaching up to 30 knots offshore.
Seas
Around 1 metre, increasing to 1.5 to 2 metres offshore.
1st Swell
South to southwesterly around 1 metre.
Weather
Clear.
Weather Situation
A cold front approaches from the west today and crosses the state early Tuesday morning. Cold west to southwesterly are forecast to follow the front before a high pressure centre approach the west of Tasmania during Wednesday. The high is expected to move over the state Thursday, before moving away to the east, over the Tasman Sea, on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Basin Temperature Statistics View More

October Temperature

St Helens Aerodrome (5 km)

  • Lowest 7 October, 2026

    5.7 °C

  • Average October

    13.4 °C

  • Highest 1 October, 2026

    22.4 °C

Climate (2021–2026)

St Helens Aerodrome (5 km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.4 °C
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