Flat Rock Island Weather Forecast

    • 11
    • 26

    Mostly sunny

    • 15
    • 25

    Showers

    • 14
    • 22

    Morning shower or two

    • 13
    • 25

    Partly cloudy

    • 13
    • 28

    Possible storm

    • 17
    • 31

    Shower or two

    • 18
    • 28

    Shower or two

Today 30 Dec Batemans Bay

Mostly sunny. Winds easterly 15 to 20 km/h becoming light in the evening.

Batemans Coastal Waters

Ulladulla to Montague Island
Wind
Northeasterly 10 to 15 knots decreasing to about 10 knots in the late afternoon.
Seas
Below 1 metre.
1st Swell
Southeasterly 1 to 1.5 metres, decreasing to around 1 metre during the afternoon.
Weather
Mostly sunny.
Weather Situation
South to southeasterly winds are gradually turning east to northeast as a high pressure ridge over the coastal waters is weakening. Then a trough will brush the coastal waters midweek, bringing a surge of fresh southerly winds along the coast, and this will be followed by another ridge extending from a high passing to the south of the state.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Flat Rock Island Temperature Statistics View More

December Temperature

Moruya Airport (27km)

  • Lowest 2 December, 2025

    6.3 °C
  • Average December

    18.6 °C
  • Highest 14 December, 2025

    34 °C

Climate (2020–Present)

Moruya Airport (27km)

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  • Average Low 2020–2025

    11 °C
  • Average 2020–2025

    15.9 °C
  • Average High 2020–2025

    21.5 °C
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