Gymea Bay Weather Forecast

    • 8
    • 16

    Sunny

    • 10
    • 15

    Showers

    • 11
    • 16

    Showers

    • 11
    • 17

    Showers

    • 14
    • 18

    Showers

    • 15
    • 19

    Shower or two

    • 13
    • 19

    Shower or two

Today 17 Aug Sydney

Mostly sunny. Winds west to southwesterly 15 to 20 km/h becoming light in the middle of the day.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southwesterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southerly below 0.5 metres, increasing to 1 to 2 metres during the morning.
Weather
Mostly sunny. 60% chance of showers. The chance of a thunderstorm offshore.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gymea Bay Temperature Statistics View More

August Temperature

Sydney Airport (13km)

  • Lowest 12 August, 2025

    7.6 °C

  • Average August

    13.5 °C

  • Highest 5 August, 2025

    22.6 °C

Climate (2020–Present)

Sydney Airport (13km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    18.6 °C

  • Average High 2020–2025

    23.3 °C
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