Bournda Island Weather Forecast

    • 12
    • 30

    Mostly clear

    • 15
    • 24

    Partly cloudy

    • 16
    • 29

    Shower or two

    • 12
    • 22

    Partly cloudy

    • 12
    • 24

    Mostly sunny

    • 14
    • 26

    Mostly sunny

    • 14
    • 22

    Cloudy

Today 4 Dec South Coast

Mostly sunny. Winds northwest to northeasterly 15 to 20 km/h tending west to northwesterly 15 to 25 km/h in the early afternoon. Daytime maximum temperatures in the low to mid 30s.

Eden Coastal Waters

Montague Island to Gabo Island
Wind
Northerly 15 to 20 knots, reaching up to 30 knots offshore north of Green Cape in the evening.
Seas
1 to 1.5 metres, increasing to 2 to 2.5 metres offshore north of Green Cape by early evening.
1st Swell
Northeasterly below 1 metre.
Weather
Mostly clear.
Weather Situation
A high pressure system lies over the Tasman Sea, extending a ridge over the state. Northerly winds strengthening by the weekend, with a brief weak southerly change expected along the south coast on Friday. Then, a cold front will cross the state during the weekend, bringing a fresh to strong southerly wind change over coastal waters in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bournda Island Temperature Statistics View More

December Temperature

Merimbula Airport (10km)

  • Lowest 1 December, 2025

    5.8 °C

  • Average December

    13.5 °C

  • Highest 2 December, 2025

    21.3 °C

Climate (2020–Present)

Merimbula Airport (10km)

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  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    15.3 °C

  • Average High 2020–2025

    21 °C
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