Dee Why Beach Weather Forecast

    • 8
    • 17

    Mostly clear

    • 10
    • 20

    Sunny

    • 11
    • 18

    Sunny

    • 8
    • 15

    Mostly sunny

    • 9
    • 16

    Shower or two

    • 10
    • 17

    Shower or two

    • 10
    • 18

    Mostly sunny

Today 27 Jul Sydney

Clear. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northeasterly below 10 knots increasing to 10 to 15 knots in the evening.
Seas
Below 1 metre.
1st Swell
Southerly 1.5 metres, decreasing to around 1 metre by early evening.
Weather
Partly cloudy.
Weather Situation
Winds are turning north to northwesterly today through Tuesday as a high over the state moves into the Tasman Sea ahead of an approaching cold front. The front is forecast to cross the coastal waters on Wednesday, with fresh to strong west to southwesterly winds over the southern and central coastal waters in its wake. Winds will then turn southerly and gradually ease as another high moves into southeastern Australia later in the week.
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  • Temperature Forecast Bureau of Meteorology

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Dee Why Beach Temperature Statistics View More

July Temperature

Terrey Hills (9km)

  • Lowest 25 July, 2026

    3.3 °C
  • Average July

    12.4 °C
  • Highest 2 July, 2026

    21.1 °C

Climate (2021–2026)

Terrey Hills (9km)

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  • Average Low 2021–2026

    13.5 °C
  • Average 2021–2026

    17.1 °C
  • Average High 2021–2026

    22 °C
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