Collaroy Beach Weather Forecast

    • 13
    • 18

    Morning fog. Shower or two

    • 12
    • 19

    Possible shower

    • 13
    • 18

    Possible shower

    • 11
    • 19

    Cloud clearing

    • 11
    • 21

    Mostly sunny

    • 15
    • 22

    Partly cloudy

    • 13
    • 19

    Sunny

Today 22 Aug Sydney

Partly cloudy. Patchy morning fog. Medium chance of showers, becoming less likely late this evening. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore during the morning. Winds turning northwesterly 10 to 15 knots in the late evening.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres around midday, then decreasing to 1 metre during the afternoon.
1st Swell
Northeasterly 1.5 to 2 metres, decreasing to 1.5 metres during the morning, then increasing to 2 to 2.5 metres around midday.
Weather
Cloudy. 95% chance of rain. The chance of a thunderstorm during the morning and afternoon.
Weather Situation
A trough lies near the coast while a high pressure system over the southwestern Tasman Sea is slowly drifting eastwards, bringing east to northeasterly winds along the coast. The trough will continue to move offshore today, while another trough brushes the coast on Saturday, with fresh southerly winds in its wake. These two troughs may interact and form an offshore low pressure system before heading further eastwards, then winds will tend northerly early next week as a high pressure ridge drifts across the state. Then, a series of cold fronts looks set to cross the coastal waters mid-next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Collaroy Beach Temperature Statistics View More

August Temperature

Terrey Hills (8km)

  • Lowest 18 August, 2025

    5.1 °C
  • Average August

    11.6 °C
  • Highest 5 August, 2025

    20.6 °C

Climate (2020–Present)

Terrey Hills (8km)

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  • Average Low 2020–2025

    13.4 °C
  • Average 2020–2025

    16.9 °C
  • Average High 2020–2025

    21.7 °C
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