Dee Why Beach Weather Forecast

    • 9
    • 18

    Sunny

    • 10
    • 19

    Mostly sunny

    • 13
    • 19

    Possible shower

    • 11
    • 21

    Sunny

    • 11
    • 20

    Sunny

    • 13
    • 21

    Sunny

    • 14
    • 22

    Shower or two

Today 31 Aug Sydney

Sunny. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Westerly 10 to 15 knots becoming variable about 10 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
Southerly 2.5 to 3 metres inshore, increasing to 2.5 to 4 metres offshore.
Weather
Sunny.
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
A ridge of high pressure is extending across from the west and will be the dominant feature in the region for the coming days. A trough or cold front is forecast to cross the far south on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

August Temperature

Terrey Hills (9km)

  • Lowest 18 August, 2025

    5.1 °C
  • Average August

    12.4 °C
  • Highest 26 August, 2025

    21.7 °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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