Dianas Beach Weather Forecast

    • 9
    • 17

    Cloudy

    • 9
    • 16

    Showers easing

    • 6
    • 17

    Mostly sunny

    • 4
    • 17

    Mostly sunny

    • 8
    • 17

    Partly cloudy

    • 5
    • 18

    Mostly sunny

    • 5
    • 19

    Sunny

Today 24 Aug St Helens

Cloudy. Light winds.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwesterly 10 to 15 knots, reaching up to 20 knots offshore.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Cloudy.
Weather Situation
A high pressure system lies well to the east of Tasmania, with a weak cold front forecast move to the south of the state today. A low pressure system over Victoria on Tuesday morning is expected to broaden and move south over Tasmania during the day, before moving away to the east on Wednesday morning. A high pressure system over South Australia is expected to extend a ridge over Tasmania later Wednesday, before moving to north of the state on Thursday. A cold front is expected to approach the southwest late Thursday, crossing during Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

August Temperature

St Helens Aerodrome (5km)

  • Lowest 23 August, 2026

    2.5 °C
  • Average August

    10.7 °C
  • Highest 13 August, 2026

    19.2 °C

Climate (2021–2026)

St Helens Aerodrome (5km)

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  • Average Low 2021–2026

    9.4 °C
  • Average 2021–2026

    13.4 °C
  • Average High 2021–2026

    18.3 °C
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