Diamond Island Weather Forecast

    • 9
    • 18

    Sunny

    • 6
    • 19

    Sunny

    • 7
    • 20

    Sunny

    • 7
    • 19

    Mostly sunny

    • 6
    • 19

    Showers increasing

    • 9
    • 20

    Partly cloudy

    • 9
    • 19

    Partly cloudy

Today 28 Aug East Coast

Cloud clearing. Winds northwesterly 15 to 25 km/h turning westerly early in the morning. Overnight temperatures falling to between 4 and 8 with daytime temperatures reaching between 12 and 17.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Northwest to southwesterly 10 to 15 knots, reaching up to 25 knots offshore early in the morning. Winds tending south to southwesterly in the middle of the day then tending northwest to southwesterly in the evening.
Seas
1 to 2 metres, decreasing to 1 metre during the afternoon.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore by early evening.
Weather
Sunny.
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

    12.1 °C

  • Highest 14 August, 2026

    19.2 °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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