Dee Why Beach Weather Forecast

    • 18
    • 25

    Sunny

    • 20
    • 31

    Mostly sunny

    • 21
    • 24

    Partly cloudy

    • 20
    • 25

    Mostly sunny

    • 20
    • 27

    Sunny

    • 21
    • 26

    Mostly sunny

    • 21
    • 27

    Mostly sunny

Today 24 Jan Sydney

Sunny. Light winds becoming east to northeasterly 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
Northeasterly about 10 knots increasing to 15 to 20 knots in the middle of the day.
Seas
Below 1 metre, increasing to 1 to 1.5 metres during the afternoon.
1st Swell
South to southeasterly 1.5 to 2.5 metres.
Weather
Mostly sunny.
Weather Situation
A high pressure system over the southern Tasman Sea is extending a ridge along the NSW coast. Winds gradually turn northerly as the high pressure system drifts east during the weekend. A cold front is forecast to brush along the south coast on Sunday, bringing a southerly change to coastal waters. Northeasterly winds forecast to redevelop next week as the next ridge settled over the coastal waters.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

January Temperature

Terrey Hills (9km)

  • Lowest 21 January, 2026

    14.6 °C

  • Average January

    20.9 °C

  • Highest 10 January, 2026

    40.5 °C

Climate (2021–Present)

Terrey Hills (9km)

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  • Average Low 2021–2026

    13.4 °C

  • Average 2021–2026

    16.9 °C

  • Average High 2021–2026

    21.8 °C
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