Diamond Island Weather Forecast

    • 7
    • 13

    Shower or two

    • 9
    • 15

    Cloudy

    • 10
    • 19

    Sunny

    • 10
    • 17

    Partly cloudy

    • 9
    • 17

    Partly cloudy

    • 10
    • 17

    Partly cloudy

    • 9
    • 17

    Possible shower

Today 7 May East Coast

Cloudy. Medium chance of showers. Winds west to northwesterly 15 to 25 km/h.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southwesterly 20 to 25 knots turning west to northwesterly 15 to 25 knots in the evening.
Seas
1.5 to 2.5 metres.
1st Swell
South to southwesterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A cold southwesterly airstream will strengthen overnight as a trough crosses Tasmania, with the stream to slowly weaken through Friday and Saturday as a high centre builds over the Bight. The high is expected to slowly approach Tasmania during Sunday and Monday, with the high centre to lie just to the south of the state by Monday evening.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

May Temperature

Bicheno (Council Depot) (2km)

  • Lowest 6 May, 2026

    11 °C

  • Average May

    17.2 °C

  • Highest 1 May, 2026

    23 °C

Climate (2021–Present)

Bicheno (Council Depot) (2km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    14.2 °C

  • Average High 2021–2026

    18.2 °C
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