Gymea Bay Weather Forecast

    • 19
    • 25

    Clear

    • 22
    • 39

    Possible storm. Evening cool change

    • 20
    • 23

    Possible shower

    • 19
    • 25

    Sunny

    • 21
    • 24

    Partly cloudy

    • 21
    • 26

    Possible shower developing

    • 21
    • 25

    Cloudy

Today 26 Dec Sydney

Clear. Winds northeasterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northeasterly 20 to 30 knots.
Seas
1.5 metres, increasing to 2 metres by early evening.
1st Swell
Southeasterly 1.5 metres, decreasing to around 1 metre by early evening.
Weather
Clear.
Weather Situation
The northerly airstream along the coast is strengthening as a high pressure system near eastern New South Wales is tracking to the northern Tasman Sea while a cold front over South Australia heads to western New South Wales. The front will enter the far south coast early Friday morning and continue moving across the southern and central parts of the coast through Friday, with a fresh to strong southerly wind change in the wake, before reaching the far northeast corner by Saturday. Then, the remnant feature of the front will become stagnant off the north coast and transition to a coastal trough while another ridge of high pressure extends across much of the coast during the weekend through the early new week, interrupted by a series of troughs brushing the southern and central parts of the coast as coastal southerly changes.
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  • Temperature Forecast Bureau of Meteorology

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Gymea Bay Temperature Statistics View More

December Temperature

Sydney Airport (13km)

  • Lowest 24 December, 2024

    16.2 °C
  • Average December

    23.2 °C
  • Highest 3 December, 2024

    35.1 °C

Climate (2019–Present)

Sydney Airport (13km)

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  • Average Low 2019–2024

    14.7 °C
  • Average 2019–2024

    18.6 °C
  • Average High 2019–2024

    23.3 °C
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