Fort Denison Weather Forecast

    • 15
    • 21

    Partly cloudy

    • 15
    • 22

    Shower or two

    • 14
    • 22

    Shower or two

    • 14
    • 23

    Shower or two

    • 15
    • 24

    Partly cloudy

    • 15
    • 25

    Partly cloudy

    • 18
    • 25

    Partly cloudy

Today 16 Oct Sydney

Partly cloudy. Slight chance of a shower. Winds easterly 15 to 25 km/h becoming light in the late evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Easterly 10 to 15 knots.
Seas
Below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
Easterly winds will gradually shift northeasterly over Sydney Waters over the weekend as a slow-moving high pressure system over the southern Tasman Sea drifts eastward.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Fort Denison Temperature Statistics View More

October Temperature

Sydney (Observatory Hill) (2 km)

  • Lowest 9 October, 2026

    11.7 °C

  • Average October

    18.7 °C

  • Highest 12 October, 2026

    34.8 °C

Climate (2021–2026)

Sydney (Observatory Hill) (2 km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    23.6 °C
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