Dee Why Beach Weather Forecast

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    Showers

    • 16
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    Showers

    • 16
    • 20

    Shower or two

    • 15
    • 21

    Shower or two

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    Shower or two

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    Shower or two

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    Shower or two

Today 13 May Sydney

Cloudy. Very high chance of showers. Winds southeast to southwesterly 15 to 20 km/h becoming southeasterly 15 to 25 km/h in the morning then becoming light in the late evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southeasterly 10 to 15 knots turning easterly in the late morning and afternoon. Winds reaching up to 20 knots offshore during the afternoon and evening.
Seas
Around 1 metre.
1st Swell
Southeasterly 1.5 to 2 metres, tending southerly 1.5 to 2 metres by early evening.
Weather
Partly cloudy. 90% chance of showers.
Weather Situation
A strong high pressure system entering the southwestern Tasman Sea will slowly drift east towards New Zealand over the next several days while directing an onshore easterly airstream over the coastal waters of New South Wales. Little change to this pattern is expected through the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

May Temperature

Terrey Hills (9km)

  • Lowest 8 May, 2026

    6.5 °C

  • Average May

    16.2 °C

  • Highest 3 May, 2026

    23.7 °C

Climate (2021–Present)

Terrey Hills (9km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    21.9 °C
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