Dianas Beach Weather Forecast

    • 7
    • 19

    Partly cloudy

    • 9
    • 20

    Partly cloudy

    • 10
    • 22

    Partly cloudy

    • 11
    • 23

    Sunny

    • 13
    • 23

    Partly cloudy

    • 14
    • 19

    Shower or two

    • 12
    • 20

    Cloudy

Today 26 Dec St Helens

Partly cloudy. Winds southwesterly 20 to 30 km/h tending southeast to southwesterly in the middle of the day.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
South to southwesterly 25 to 30 knots.
Seas
2.5 to 3 metres.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore.
Weather
Cloudy. 50% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

December Temperature

St Helens Aerodrome (5km)

  • Lowest 2 December, 2025

    6.6 °C

  • Average December

    16.1 °C

  • Highest 17 December, 2025

    29.5 °C

Climate (2020–Present)

St Helens Aerodrome (5km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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