Ballast Point Weather Forecast

    • 18
    • 27

    Clear

    • 18
    • 31

    Sunny

    • 22
    • 34

    Mostly sunny

    • 21
    • 30

    Shower or two

    • 21
    • 34

    Possible storm

    • 23
    • 31

    Sunny morning. Shower or two

    • 20
    • 28

    Shower or two

Today 17 Dec Sydney

Clear. Winds northeasterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northeasterly 15 to 20 knots.
Seas
Below 0.5 metres.
Weather
Clear.
Weather Situation
A high in the Tasman Sea is directing northerly winds over Sydney local waters. On Friday a weak trough will bring a brief southerly change over Sydney local waters before winds turn northerly again over the weekend. Following this, a cold front will bring a fresh to strong southerly change later on Sunday or Monday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Ballast Point Temperature Statistics View More

December Temperature

Sydney (Observatory Hill) (1km)

  • Lowest 2 December, 2025

    13.3 °C

  • Average December

    22 °C

  • Highest 5 December, 2025

    37.8 °C

Climate (2020–Present)

Sydney (Observatory Hill) (1km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    18.3 °C

  • Average High 2020–2025

    23.4 °C
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