Diamond Island Weather Forecast

    • 11
    • 17

    Partly cloudy

    • 10
    • 19

    Partly cloudy

    • 11
    • 19

    Partly cloudy

    • 14
    • 21

    Partly cloudy

    • 14
    • 19

    Cloudy

    • 13
    • 21

    Partly cloudy

    • 13
    • 26

    Mostly sunny

Today 31 Dec East Coast

Partly cloudy. Winds southeast to southwesterly 20 to 30 km/h becoming light in the late evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Southerly 15 to 20 knots, reaching up to 25 knots offshore in the late afternoon.
Seas
1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Easterly 1 to 1.5 metres.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure strengthens over Tasmania. This will persist over the coming days until a low pressure trough is expected to cross the state on Saturday and linger off the east coast on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Island Temperature Statistics View More

December Temperature

Bicheno (Council Depot) (2km)

  • Lowest 1 December, 2025

    5.5 °C

  • Average December

    15.9 °C

  • Highest 4 December, 2025

    32 °C

Climate (2020–Present)

Bicheno (Council Depot) (2km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    14.2 °C

  • Average High 2020–2025

    18.1 °C
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