Dianas Beach Weather Forecast

    • 12
    • 20

    Partly cloudy

    • 10
    • 18

    Becoming windy. Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 10
    • 17

    Shower or two

    • 9
    • 17

    Shower or two

    • 7
    • 18

    Shower or two

    • 7
    • 17

    Shower or two

Today 26 Nov St Helens

Partly cloudy. Slight chance of a shower, becoming less likely in the afternoon. Winds west to northwesterly 20 to 30 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwesterly 15 to 25 knots, reaching up to 30 knots in the late morning and again in the evening.
Seas
1.5 to 2.5 metres.
1st Swell
Easterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Partly cloudy.
Weather Situation
A low pressure system located well to the southwest draws an associated cold front over the state. The front is expected to be followed by a prevailing westerly flow on Thursday, continuing into Friday and the weekend. A weak cold front embedded in the flow approaches and crosses from the west late Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

November Temperature

St Helens Aerodrome (5km)

  • Lowest 21 November, 2025

    4.8 °C

  • Average November

    13.2 °C

  • Highest 10 November, 2025

    21.3 °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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