Gannons Bay Weather Forecast

    • 14
    • 20

    Partly cloudy

    • 15
    • 25

    Sunny

    • 18
    • 29

    Sunny

    • 21
    • 34

    Mostly sunny

    • 23
    • 36

    Partly cloudy

    • 21
    • 24

    Shower or two

    • 18
    • 25

    Cloudy

Today 2 Dec Sydney

Mostly clear. Winds south to southwesterly 15 to 20 km/h.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southerly 15 to 20 knots.
Seas
1.5 metres, increasing to 1.5 to 2 metres offshore.
1st Swell
Southerly 2 to 2.5 metres.
Weather
Partly cloudy.
Weather Situation
Fresh to strong south to southwesterly winds lie over the coastal waters this afternoon. Following this, winds should gradually ease and turn northerly as a high pressure system drifts across the state, entering the Tasman Sea midweek. Then, another trough is forecast to enter the state's far west on Friday ahead of a cold front crossing the state during the weekend, bringing a southerly wind change over coastal waters in its wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gannons Bay Temperature Statistics View More

December Temperature

Sydney Airport (14km)

  • Lowest 1 December, 2025

    15.5 °C

  • Average December

    19.3 °C

  • Highest

    –

Climate (2020–Present)

Sydney Airport (14km)

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  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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