Greenwich Weather Forecast

    • 14
    • 27

    Clear

    • 17
    • 30

    Sunny

    • 19
    • 34

    Sunny

    • 23
    • 36

    Partly cloudy

    • 20
    • 25

    Shower or two

    • 17
    • 26

    Cloudy

    • 19
    • 30

    Sunny

Today 3 Dec Sydney

Clear. Winds north to northeasterly 15 to 25 km/h tending east to northeasterly in the late afternoon then becoming light 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
Winds will gradually turn northerly as a high pressure system drifts across the state, entering the Tasman Sea by Thursday. Northerly winds strengthening by the weekend ahead of a cold front crossing Sydney Waters late Saturday, bringing a fresh to strong southerly wind change in its wake.
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Greenwich Temperature Statistics View More

December Temperature

Sydney (Observatory Hill) (3km)

  • Lowest 2 December, 2025

    13.3 °C

  • Average December

    18 °C

  • Highest 1 December, 2025

    24.6 °C

Climate (2020–Present)

Sydney (Observatory Hill) (3km)

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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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