Dianas Beach Weather Forecast

    • 11
    • 16

    Showers easing. Windy

    • 7
    • 16

    Partly cloudy

    • 10
    • 16

    Showers

    • 9
    • 17

    Becoming cloudy

    • 6
    • 16

    Partly cloudy

    • 5
    • 18

    Mostly sunny

    • 5
    • 17

    Mostly sunny

Today 3 Sep St Helens

Partly cloudy. High chance of showers, most likely in the morning. Damaging winds possible. Winds west to northwesterly 25 to 40 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwesterly 20 to 30 knots, reaching up to 35 knots offshore during the morning. Winds turning westerly in the morning.
Seas
1 to 2 metres, increasing to 2 to 3 metres offshore.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm offshore in the morning.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

September Temperature

St Helens Aerodrome (5km)

  • Lowest 1 September, 2026

    6.9 °C

  • Average September

    13 °C

  • Highest 1 September, 2026

    17.3 °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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