Diamond Island Weather Forecast

    • 8
    • 18

    Possible light late shower

    • 6
    • 14

    Partly cloudy

    • 5
    • 15

    Partly cloudy

    • 7
    • 16

    Partly cloudy

    • 7
    • 16

    Shower or two

    • 9
    • 17

    Shower or two

    • 11
    • 19

    Shower or two

Today 14 Aug East Coast

Partly cloudy. Medium chance of light showers in the south, slight chance elsewhere. Winds west to northwesterly 20 to 30 km/h turning south to southwesterly 15 to 20 km/h in the late afternoon. Overnight temperatures falling to between 3 and 9 with daytime temperatures reaching between 12 and 17.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwesterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning. Winds shifting southerly in the late afternoon.
Seas
Around 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Becoming cloudy. 50% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

August Temperature

Bicheno (Council Depot) (2km)

  • Lowest 2 August, 2026

    4 °C

  • Average August

    11.5 °C

  • Highest 2 August, 2026

    17.5 °C

Climate (2021–2026)

Bicheno (Council Depot) (2km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    14.3 °C

  • Average High 2021–2026

    18.2 °C
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