Gannons Bay Weather Forecast

    • 17
    • 35

    Showers

    • 17
    • 20

    Showers

    • 15
    • 17

    Possible shower

    • 15
    • 18

    Shower or two

    • 15
    • 19

    Showers

    • 16
    • 20

    Showers

    • 16
    • 20

    Shower or two

Today 12 Oct Sydney

Partly cloudy. High chance of showers, most likely in the evening. The chance of a thunderstorm in the late afternoon and evening. Winds northwesterly 20 to 30 km/h turning westerly 15 to 25 km/h in the late afternoon.

Extreme Fire Danger Rating

Take action now to protect life and property

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northeasterly 10 to 15 knots, reaching up to 20 knots offshore in the evening. Winds shifting west to southwesterly in the evening.
Seas
Around 1 metre.
1st Swell
Southerly below 1 metre.
Weather
Partly cloudy. 70% chance of showers in the evening. The chance of a thunderstorm in the evening.
Weather Situation
A cold front will bring a fresh to strong, gusty southerly change to the southern half of the coast later today before continuing north and crossing much of the north coast on Tuesday. Southerly winds will then gradually turn easterly mid to late this week as a strong high pressure system passes to the south of the state. The high will then enter the Tasman Sea and become slow-moving, maintaining east to northeasterly winds through the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gannons Bay Temperature Statistics View More

October Temperature

Sydney Airport (14 km)

  • Lowest 9 October, 2026

    12.2 °C

  • Average October

    19.2 °C

  • Highest 1 October, 2026

    31 °C

Climate (2021–2026)

Sydney Airport (14 km)

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  • Average Low 2021–2026

    15 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    23.5 °C
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