Dee Why Head Weather Forecast

    • 19
    • 21

    Rain

    • 20
    • 22

    Showers

    • 19
    • 22

    Shower or two

    • 18
    • 22

    Shower or two

    • 18
    • 23

    Possible shower

Today 18 Jan Sydney

Cloudy. Very high chance of rain. The chance of a thunderstorm in the morning, possibly severe with heavy rain which may lead to flash flooding along the coastal fringe. Winds southerly 20 to 30 km/h tending southeasterly 25 to 35 km/h before dawn.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southeasterly 20 to 30 knots.
Seas
2 to 3 metres.
1st Swell
Easterly 3 to 4 metres, decreasing to 3 metres during the evening.
Weather
Cloudy. 90% chance of rain. The chance of a thunderstorm in the morning.
Caution
Large and powerful surf conditions are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
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  • Temperature Forecast Bureau of Meteorology

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Dee Why Head Temperature Statistics View More

January Temperature

Terrey Hills (11km)

  • Lowest 12 January, 2026

    15.5 °C

  • Average January

    21.6 °C

  • Highest 10 January, 2026

    40.5 °C

Climate (2021–Present)

Terrey Hills (11km)

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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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