Dianas Beach Weather Forecast

    • 7
    • 18

    Shower or two

    • 11
    • 19

    Shower or two

    • 11
    • 17

    Showers increasing

    • 12
    • 17

    Showers

    • 13
    • 18

    Showers

    • 13
    • 19

    Shower or two

    • 14
    • 19

    Showers

Today 23 May St Helens

Cloudy. High chance of showers, most likely in the evening. Light winds becoming northerly 15 to 25 km/h in the middle of the day then becoming light in the late afternoon.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northerly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the morning.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Cloudy. 70% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dianas Beach Temperature Statistics View More

May Temperature

St Helens Aerodrome (5km)

  • Lowest 21 May, 2026

    4.4 °C

  • Average May

    13.2 °C

  • Highest 1 May, 2026

    24.9 °C

Climate (2021–Present)

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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