Royal Motor Yacht Club of New South Wales Weather Forecast

    • 17
    • 23

    Cloudy

    • 19
    • 20

    Shower or two

    • 18
    • 22

    Partly cloudy

    • 19
    • 25

    Partly cloudy

    • 20
    • 27

    Shower or two. Possible storm

    • 20
    • 25

    Possible shower

    • 21
    • 25

    Cloudy

Today 31 Dec Sydney

Cloudy. Slight chance of a shower. Winds south to southeasterly 15 to 20 km/h.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
South to southeasterly 10 to 15 knots.
Seas
Below 1 metre.
Weather
Cloudy.
Weather Situation
A trough tracks northwards along the coast today, bringing a surge of fresh southerly winds over Sydney local waters, followed by another ridge extending from a high passing to the south of the state, gradually turning winds northeasterly over the weekend.
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Royal Motor Yacht Club of New South Wales Temperature Statistics View More

December Temperature

Sydney (Observatory Hill) (4km)

  • Lowest 2 December, 2025

    13.3 °C

  • Average December

    22.2 °C

  • Highest 19 December, 2025

    42.2 °C

Climate (2020–Present)

Sydney (Observatory Hill) (4km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    18.3 °C

  • Average High 2020–2025

    23.5 °C
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