Dianas Beach Weather Forecast

    • 13
    • 24

    Partly cloudy

    • 11
    • 20

    Partly cloudy

    • 12
    • 19

    Cloudy

    • 13
    • 21

    Shower or two

    • 13
    • 25

    Possible shower

    • 14
    • 24

    Shower or two

    • 14
    • 24

    Shower or two

Today 6 Mar St Helens

Partly cloudy. Winds east to northeasterly 15 to 20 km/h shifting northwesterly 15 to 25 km/h in the evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Variable about 10 knots becoming east to northeasterly 15 to 20 knots in the early afternoon then turning north to northwesterly in the late afternoon. Winds reaching up to 25 knots offshore in the evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore by early evening.
1st Swell
South to southwesterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Partly cloudy.
Weather Situation
A trough lingers about the southeast following the passage of a cold front yesterday. A ridge of high pressure will then slowly extend over the state from late today, as the high centre is forecast to approach the west coast on Saturday, move over Tasmania on Sunday and out to the east on Monday.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

March Temperature

St Helens Aerodrome (5km)

  • Lowest 4 March, 2026

    13.9 °C
  • Average March

    18.2 °C
  • Highest 4 March, 2026

    23.5 °C

Climate (2021–Present)

St Helens Aerodrome (5km)

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  • Average Low 2021–2026

    9.3 °C
  • Average 2021–2026

    13.3 °C
  • Average High 2021–2026

    18.2 °C
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