Big Marley Beach Weather Forecast

    • 20
    • 30

    Windy. Partly cloudy

    • 19
    • 24

    Possible shower

    • 19
    • 21

    Showers. Possible storm

    • 19
    • 22

    Showers

    • 19
    • 27

    Shower or two developing

    • 20
    • 29

    Partly cloudy

    • 20
    • 24

    Shower or two

Today 9 Dec Sydney

Partly cloudy. Slight chance of a shower along the coastal fringe in the evening. Near zero chance of rain elsewhere. Winds south to southeasterly 25 to 35 km/h.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northeasterly 15 to 20 knots shifting southerly 15 to 25 knots in the afternoon. Winds reaching up to 30 knots in the evening.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres by early evening.
1st Swell
Northeasterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A ridge is strengthening over coastal areas in the wake of a front, before a trough brushes central and southern parts of the coast later today and on Wednesday, bringing a southerly change with it. High pressure will build in the Tasman Sea later in the week, bringing east to northeasterly winds to coastal waters.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Big Marley Beach Temperature Statistics View More

December Temperature

Sydney Airport (19km)

  • Lowest 2 December, 2025

    13.4 °C

  • Average December

    22.9 °C

  • Highest 6 December, 2025

    39.2 °C

Climate (2020–Present)

Sydney Airport (19km)

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  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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