Dianas Beach Weather Forecast

    • 7
    • 17

    Partly cloudy

    • 4
    • 18

    Mostly sunny

    • 7
    • 19

    Partly cloudy

    • 10
    • 18

    Cloudy

    • 11
    • 20

    Cloudy

    • 10
    • 20

    Cloud clearing

    • 9
    • 21

    Partly cloudy

Today 18 Apr St Helens

Partly cloudy. Winds westerly 15 to 20 km/h turning south to southwesterly 15 to 25 km/h in the late morning and early afternoon.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southwesterly 25 to 30 knots, reaching up to 35 knots offshore during the morning. Winds turning southerly 15 to 25 knots in the evening.
Seas
2.5 to 4 metres, decreasing below 2.5 metres by early evening.
1st Swell
Southerly 2 to 3 metres inshore, increasing to 3 to 5 metres offshore.
Weather
Cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

April Temperature

St Helens Aerodrome (5km)

  • Lowest 14 April, 2026

    4.9 °C

  • Average April

    13.9 °C

  • Highest 1 April, 2026

    26 °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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