Dianas Beach Weather Forecast

    • 11
    • 15

    Shower or two

    • 10
    • 17

    Possible shower

    • 8
    • 19

    Partly cloudy

    • 9
    • 19

    Showers

    • 5
    • 16

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 11
    • 19

    Partly cloudy

Today 3 Oct St Helens

Cloudy. High chance of showers. Winds southeasterly 25 to 30 km/h tending southerly in the late afternoon.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southeasterly 15 to 25 knots, reaching up to 30 knots offshore in the late evening.
Seas
1 to 2 metres.
1st Swell
Easterly 1.5 to 2 metres.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A low pressure system and associated trough lies to the northeast of Tasmania, directing a southeasterly flow over the state. The low is forecast to move away to the east from Sunday. A cold front will approach from the west on Monday, directing a west to northwesterly flow over Tasmania before crossing the state on Tuesday. A high pressure system will move in from the west on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

October Temperature

St Helens Aerodrome (5km)

  • Lowest 2 October, 2026

    10.9 °C

  • Average October

    14.7 °C

  • Highest 1 October, 2026

    22.4 °C

Climate (2021–2026)

St Helens Aerodrome (5km)

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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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