Fort Denison Weather Forecast

    • 15
    • 23

    Rain increasing

    • 15
    • 22

    Rain easing

    • 13
    • 20

    Sunny

    • 12
    • 21

    Shower or two

    • 13
    • 20

    Shower or two

    • 14
    • 22

    Shower or two

    • 13
    • 22

    Shower or two

Today 18 May Sydney

Cloudy. Very high chance of rain, most likely in the afternoon and evening. Light winds.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
North to northwesterly below 10 knots.
Seas
Below 0.5 metres.
Weather
Cloudy. Near 100% chance of rain.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Fort Denison Temperature Statistics View More

May Temperature

Sydney (Observatory Hill) (2km)

  • Lowest 8 May, 2026

    9.9 °C

  • Average May

    17.7 °C

  • Highest 3 May, 2026

    25.9 °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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