Bournda Island Weather Forecast

    • 12
    • 17

    Windy. Partly cloudy

    • 6
    • 17

    Partly cloudy

    • 8
    • 21

    Mostly sunny

    • 10
    • 23

    Mostly sunny

    • 11
    • 27

    Partly cloudy

    • 13
    • 26

    Shower or two

    • 10
    • 18

    Shower or two

Today 21 Sep South Coast

Partly cloudy. Medium chance of showers in the north, slight chance elsewhere. Winds northwest to southwesterly 15 to 25 km/h tending southeast to southwesterly 25 to 40 km/h in the early morning then becoming light in the late evening. Daytime maximum temperatures between 15 and 21.

Eden Coastal Waters

Montague Island to Gabo Island
Wind
South to southwesterly 20 to 30 knots, reaching up to 35 knots offshore south of Green Cape during the morning. Winds decreasing to 15 to 20 knots in the late evening.
Seas
1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
South to southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs a northwesterly flow over much of the state, with a fresh and gusty southerly change moving across the coastal waters today, reaching the QLD border by Tuesday. A second high pressure system is forecast to slip south and enter the Tasman Sea by mid-week, turning the winds east to northeasterly.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Bournda Island Temperature Statistics View More

September Temperature

Merimbula Airport (10km)

  • Lowest 18 September, 2026

    3.2 °C

  • Average September

    13.6 °C

  • Highest 19 September, 2026

    30.7 °C

Climate (2021–2026)

Merimbula Airport (10km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    21.2 °C
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