Dee Why Beach Weather Forecast

    • 14
    • 26

    Mostly sunny

    • 19
    • 22

    Partly cloudy

    • 19
    • 25

    Shower or two. Possible storm

    • 21
    • 27

    Possible shower

    • 18
    • 23

    Possible shower

    • 14
    • 21

    Partly cloudy

    • 15
    • 25

    Sunny

Today 13 Nov Sydney

Mostly sunny. Light winds becoming west to northwesterly 15 to 25 km/h in the middle of the day then becoming light in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northwesterly 10 to 15 knots tending north to northeasterly 15 to 20 knots in the early afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny.
Weather Situation
Southerly winds will gradually shift northerly and strengthen from Thursday as a high pressure system drifts across the state. A series of troughs will bring brief, weak southerly changes to southern and central parts of the coast on Friday and again on Sunday, ahead of a stronger southerly change expected early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

November Temperature

Terrey Hills (9km)

  • Lowest 12 November, 2025

    8.9 °C

  • Average November

    18.5 °C

  • Highest 8 November, 2025

    33.3 °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

    21.8 °C
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