Fort Denison Weather Forecast

    • 12
    • 22

    Clear

    • 13
    • 23

    Possible shower

    • 15
    • 22

    Shower or two

    • 15
    • 23

    Possible shower

    • 15
    • 23

    Partly cloudy

    • 14
    • 24

    Partly cloudy

    • 14
    • 25

    Mostly sunny

Today 19 Apr Sydney

Clear. Winds south to southeasterly 15 to 25 km/h turning southwesterly 15 to 20 km/h in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Southerly 15 to 20 knots becoming southwesterly about 10 knots in the late evening.
Seas
Below 0.5 metres.
Weather
Clear.
Weather Situation
Southerly winds will be maintained during the weekend as a high pressure system near Victoria extends a ridge over the coastal waters. From Monday, winds should gradually turn southeasterly as the high moves gradually eastwards over the Tasman Sea.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Fort Denison Temperature Statistics View More

April Temperature

Sydney (Observatory Hill) (2km)

  • Lowest 18 April, 2026

    11.8 °C

  • Average April

    19.7 °C

  • Highest 9 April, 2026

    29 °C

Climate (2021–Present)

Sydney (Observatory Hill) (2km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    18.4 °C

  • Average High 2021–2026

    23.5 °C
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