Greenwich Weather Forecast

    • 18
    • 24

    Shower or two

    • 15
    • 21

    Possible shower

    • 15
    • 23

    Partly cloudy

    • 16
    • 25

    Possible shower

    • 17
    • 26

    Partly cloudy

    • 16
    • 27

    Cloud clearing

    • 18
    • 31

    Partly cloudy

Today 25 Dec Sydney

Cloudy. Medium chance of showers, most likely in the morning. Winds southerly 25 to 35 km/h decreasing to 15 to 25 km/h in the early morning then turning southeasterly 25 to 35 km/h in the morning.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
South to southeasterly 20 to 30 knots decreasing to 15 to 25 knots before dawn.
Seas
Below 0.5 metres.
Weather
Cloudy. 60% chance of showers.
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Greenwich Temperature Statistics View More

December Temperature

Sydney (Observatory Hill) (3km)

  • Lowest 2 December, 2025

    13.3 °C

  • Average December

    23 °C

  • Highest 19 December, 2025

    42.2 °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

    23.5 °C
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