Dee Why Beach Weather Forecast

    • 8
    • 14

    Cloudy

    • 8
    • 17

    Sunny

    • 7
    • 17

    Mostly sunny

    • 9
    • 16

    Shower or two

    • 9
    • 17

    Partly cloudy

    • 8
    • 18

    Sunny

    • 11
    • 18

    Possible shower

Today 15 Jul Sydney

Cloudy. Patches of frost in the outer west in the early morning. Light winds becoming westerly 15 to 20 km/h in the middle of the day.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
West to northwesterly 15 to 20 knots tending west to southwesterly during the day.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres around midday.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon.
Weather
Cloudy.
Weather Situation
A trough is developing in the state's far north and heading eastwards while a series of cold fronts brushes the far south and a high pressure ridge extends across the central areas, maintaining westerly airstream. Then, another trough looks set to brush the coast late Thursday through Friday, bringing a southerly wind change.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

July Temperature

Terrey Hills (9km)

  • Lowest 13 July, 2025

    5.2 °C

  • Average July

    12.2 °C

  • Highest 6 July, 2025

    19.9 °C

Climate (2020–Present)

Terrey Hills (9km)

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  • Average Low 2020–2025

    13.4 °C

  • Average 2020–2025

    16.9 °C

  • Average High 2020–2025

    21.7 °C
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