Fort Denison Weather Forecast

    • 11
    • 23

    Partly cloudy

    • 13
    • 23

    Showers easing

    • 12
    • 21

    Sunny

    • 11
    • 20

    Partly cloudy

    • 12
    • 23

    Mostly sunny

    • 13
    • 22

    Showers increasing

    • 13
    • 19

    Shower or two

Today 20 Aug Sydney

Partly cloudy. Slight chance of a shower in the afternoon and evening. Light winds.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Northwest to northeasterly 10 to 15 knots.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
North to northeasterly winds will strengthen over Sydney Waters today, as a trough approaches from the west. Winds will ease and shift west to southwesterly from Friday as a series of cold fronts brush the south, before another high pressure system moves into the Tasman Sea later in the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Fort Denison Temperature Statistics View More

August Temperature

Sydney (Observatory Hill) (2km)

  • Lowest 5 August, 2026

    7.2 °C

  • Average August

    13.6 °C

  • Highest 3 August, 2026

    22.2 °C

Climate (2021–2026)

Sydney (Observatory Hill) (2km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.4 °C

  • Average High 2021–2026

    23.6 °C
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