Dee Why Beach Weather Forecast

    • 13
    • 20

    Shower or two

    • 11
    • 17

    Partly cloudy

    • 10
    • 18

    Mostly sunny

    • 12
    • 18

    Mostly sunny

    • 10
    • 17

    Partly cloudy

    • 9
    • 17

    Sunny

    • 9
    • 16

    Sunny

Today 6 Jul Sydney

Partly cloudy. Medium chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm late this afternoon and evening, possibly severe. Light winds becoming north to northwesterly 15 to 20 km/h in the middle of the day then becoming light in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northerly 10 to 15 knots turning northwesterly in the evening. Winds reaching up to 20 knots offshore during the morning and again in the late evening.
Seas
1 to 1.5 metres, decreasing below 1 metre around midday.
1st Swell
South to southeasterly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm, possibly severe.
Weather Situation
Northerly winds are freshening before shifting westerly today as a trough crosses the region. Winds will then turn southerly over the southern waters as the trough moves offshore on Monday. A series of cold fronts are forecast to cross the state from Tuesday, bringing gusty west to northwesterly winds.
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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 5 July, 2025

    7 °C

  • Average July

    11.8 °C

  • Highest 4 July, 2025

    17.1 °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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