Diamond Bay Weather Forecast

    • 17
    • 26

    Mostly clear

    • 18
    • 25

    Sunny

    • 14
    • 22

    Sunny

    • 15
    • 28

    Windy. Mostly sunny

    • 14
    • 21

    Sunny

    • 13
    • 20

    Mostly sunny

    • 14
    • 19

    Possible shower

Today 2 Sep Sydney

Mostly clear. Winds west to northwesterly 15 to 25 km/h becoming light in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
West to northwesterly below 10 knots.
Seas
Below 0.5 metres.
Weather
Mostly clear.
Weather Situation
North to northwesterly winds will persist ahead of a trough and associated cold front crossing the Sydney Waters during Thursday, driving westerly winds in its wake. North to northwesterly winds are forecast to redevelop ahead of a series of fronts crossing the waters during the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Diamond Bay Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (7km)

  • Lowest 1 September, 2026

    10.6 °C

  • Average September

    14.4 °C

  • Highest

    –

Climate (2021–2026)

Sydney (Observatory Hill) (7km)

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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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