Dianas Beach Weather Forecast

    • 7
    • 20

    Clear

    • 7
    • 18

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 11
    • 17

    Partly cloudy

    • 11
    • 18

    Possible shower

    • 11
    • 18

    Shower or two

    • 11
    • 20

    Shower or two

Today 9 May St Helens

Clear. Light winds.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southerly 10 to 15 knots turning southwesterly in the evening. Winds reaching up to 25 knots offshore in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres later in the evening.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 2 to 2.5 metres offshore.
Weather
Mostly clear.
Weather Situation
A high pressure centre lies over the Bight and extends a ridge of high pressure over Tasmania, bringing mostly settled weather to the state. The high is expected to slowly approach Tasmania during Sunday and Monday, then pass close to the south during Tuesday before moving over the Tasman Sea on Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

May Temperature

St Helens Aerodrome (5km)

  • Lowest 7 May, 2026

    7.1 °C

  • Average May

    14 °C

  • Highest 1 May, 2026

    24.9 °C

Climate (2021–Present)

St Helens Aerodrome (5km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.3 °C
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