Gymea Bay Weather Forecast

    • 16
    • 18

    Becoming windy. Partly cloudy

    • 15
    • 20

    Partly cloudy

    • 17
    • 21

    Possible shower

    • 17
    • 23

    Partly cloudy

    • 17
    • 25

    Mostly sunny

    • 19
    • 28

    Partly cloudy

    • 18
    • 25

    Shower or two

Today 26 Dec Sydney

Partly cloudy. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Winds south to southeasterly 25 to 40 km/h.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southerly 15 to 25 knots, reaching up to 30 knots during the afternoon. Winds decreasing to 10 to 15 knots in the late evening.
Seas
1.5 to 2.5 metres.
1st Swell
Southerly 2 to 3 metres.
Weather
Partly cloudy. 50% chance of showers.
Caution
Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
Weather Situation
Fresh to strong southerly winds are prevailing as a strong high pressure system over the Bight extends a ridge over the coastal waters. Winds are forecast to remain southerly into the weekend, while gradually easing, as the high slowly moves southeast, entering the southern Tasman Sea by the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gymea Bay Temperature Statistics View More

December Temperature

Sydney Airport (13km)

  • Lowest 2 December, 2025

    13.4 °C

  • Average December

    23.4 °C

  • Highest 19 December, 2025

    42.6 °C

Climate (2020–Present)

Sydney Airport (13km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    14.8 °C

  • Average 2020–2025

    18.7 °C

  • Average High 2020–2025

    23.4 °C
Get WillyWeather+ to remove ads