Dianas Beach Weather Forecast

    • 8
    • 19

    Partly cloudy

    • 11
    • 21

    Cloud clearing

    • 11
    • 23

    Sunny

    • 13
    • 24

    Possible late shower

    • 12
    • 19

    Shower or two

    • 11
    • 20

    Partly cloudy

    • 11
    • 21

    Partly cloudy

Today 27 Dec St Helens

Partly cloudy. Winds southwesterly 15 to 20 km/h turning southeasterly 20 to 30 km/h in the middle of the day.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southerly 15 to 25 knots, reaching up to 30 knots during the morning. Winds decreasing to 10 to 15 knots in the late evening.
Seas
2 to 3 metres.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 2 to 2.5 metres offshore.
Weather
Cloudy.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

December Temperature

St Helens Aerodrome (5km)

  • Lowest 25 December, 2025

    6.4 °C

  • Average December

    15.7 °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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