Three Brothers Rocks Weather Forecast

    • 7
    • 21

    Sunny

    • 9
    • 18

    Cloudy

    • 7
    • 21

    Sunny

    • 10
    • 18

    Showers easing

    • 11
    • 19

    Shower or two

    • 8
    • 19

    Partly cloudy

    • 7
    • 20

    Mostly sunny

Today 22 Aug South Coast

Sunny. Areas of morning frost about the coastal ranges. Winds west to northwesterly 15 to 20 km/h tending northeast to southeasterly 15 to 25 km/h in the middle of the day then tending northwest to southwesterly 15 to 20 km/h in the evening. Overnight temperatures falling to between 3 and 8 with daytime temperatures reaching between 17 and 22.

Eden Coastal Waters

Montague Island to Gabo Island
Wind
Northwest to southwesterly 15 to 20 knots becoming southwesterly 15 to 25 knots in the middle of the day. Winds reaching up to 30 knots during the afternoon and evening.
Seas
Below 1 metre, increasing to 1 to 2 metres around midday, then increasing to 2 to 3 metres during the afternoon.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 2 to 3 metres around midday.
Weather
Sunny.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Three Brothers Rocks Temperature Statistics View More

August Temperature

Montague Island Lighthouse (27km)

  • Lowest 7 August, 2026

    9.3 °C

  • Average August

    14.1 °C

  • Highest 20 August, 2026

    21.1 °C

Climate (2021–2026)

Montague Island Lighthouse (27km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    20 °C
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