Dianas Beach Weather Forecast

    • 12
    • 24

    Mostly sunny

    • 13
    • 23

    Mostly sunny

    • 14
    • 24

    Cloudy

    • 14
    • 25

    Partly cloudy

    • 14
    • 19

    Showers

    • 14
    • 22

    Shower or two

    • 13
    • 19

    Shower or two

Today 20 Mar St Helens

Mostly sunny. Light winds becoming northwest to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Variable below 10 knots becoming north to northwesterly 10 to 15 knots in the middle of the day then tending north to northeasterly in the late afternoon. Winds reaching up to 20 knots inshore in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Mostly sunny.
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 13 March, 2026

    6.8 °C

  • Average March

    16.7 °C

  • Highest 10 March, 2026

    25.3 °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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