Dianas Beach Weather Forecast

    • 9
    • 19

    Mostly clear

    • 5
    • 15

    Cloudy

    • 7
    • 17

    Partly cloudy

    • 8
    • 19

    Partly cloudy

    • 11
    • 23

    Possible shower

    • 11
    • 21

    Partly cloudy

    • 9
    • 21

    Showers

Today 6 Oct St Helens

Mostly clear. Winds southwesterly 20 to 30 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southwesterly 20 to 30 knots.
Seas
1.5 to 2.5 metres.
1st Swell
South to southwesterly around 1 metre, increasing to 1.5 to 2.5 metres by early evening.
Weather
Partly cloudy. 70% chance of showers, with possible small hail offshore later this evening.
Weather Situation
A cold front clears to the east of Tasmania with a cool southwesterly airstream extending over the state in its wake. A high pressure system is forecast to move over Tasmania from the west during Wednesday before slipping to the southeast during Thursday tending the airstream northerly over the state. Northerly flow is forecast to persist into Friday as a weakening cold front approaches the west, forecast to cross during Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

October Temperature

St Helens Aerodrome (5 km)

  • Lowest 5 October, 2026

    6.5 °C

  • Average October

    13 °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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