Gymea Bay Weather Forecast

    • 21
    • 22

    Shower or two. Windy

    • 19
    • 22

    Shower or two

    • 20
    • 26

    Possible shower

    • 22
    • 27

    Shower or two. Possible storm

    • 22
    • 26

    Shower or two

    • 20
    • 23

    Shower or two. Becoming windy

    • 19
    • 21

    Shower or two. Becoming windy

Today 11 Jan Sydney

Cloudy. High chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm in the late afternoon and evening. Winds southerly 25 to 40 km/h turning southeasterly 25 to 35 km/h in the late morning and early afternoon.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northwesterly 20 to 30 knots, reaching up to 35 knots inshore early in the morning. Winds shifting south to southeasterly 15 to 25 knots during the morning.
Seas
2 to 3 metres, decreasing to 2 metres around midday.
1st Swell
Southerly around 1 metre, increasing to 1.5 to 2 metres around midday.
Weather
Cloudy. 70% chance of showers in the afternoon and evening. The chance of a thunderstorm in the evening.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gymea Bay Temperature Statistics View More

January Temperature

Sydney Airport (13km)

  • Lowest 2 January, 2026

    17.2 °C

  • Average January

    23.3 °C

  • Highest 8 January, 2026

    34 °C

Climate (2021–Present)

Sydney Airport (13km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    18.7 °C

  • Average High 2021–2026

    23.4 °C
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