Dee Why Beach Weather Forecast

    • 17
    • 23

    Possible late shower

    • 19
    • 21

    Possible shower

    • 18
    • 22

    Cloudy

    • 19
    • 25

    Partly cloudy

    • 20
    • 28

    Possible shower or storm

    • 22
    • 26

    Shower or two

    • 21
    • 26

    Partly cloudy

Today 31 Dec Sydney

Partly cloudy. Medium chance of showers in the afternoon and evening. The chance of a thunderstorm in the afternoon and early evening. Light winds becoming southeasterly 15 to 25 km/h in the middle of the day.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Variable about 10 knots becoming southeasterly 10 to 15 knots in the middle of the day then tending southerly in the late evening.
Seas
Below 1 metre.
1st Swell
Southeasterly 1.5 to 2 metres, tending easterly 2 to 2.5 metres during the morning, then tending southeasterly 2.5 metres around midday.
Weather
Partly cloudy.
Caution
Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dee Why Beach Temperature Statistics View More

December Temperature

Terrey Hills (9km)

  • Lowest 3 December, 2025

    11.3 °C

  • Average December

    20.8 °C

  • Highest 19 December, 2025

    40.2 °C

Climate (2020–Present)

Terrey Hills (9km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    13.4 °C

  • Average 2020–2025

    16.9 °C

  • Average High 2020–2025

    21.8 °C
Get WillyWeather+ to remove ads