Collaroy Beach Weather Forecast

    • 15
    • 17

    Showers

    • 15
    • 18

    Cloudy

    • 13
    • 20

    Partly cloudy

    • 13
    • 24

    Sunny

    • 16
    • 29

    Sunny

    • 19
    • 26

    Showers

    • 15
    • 20

    Shower or two

Today 27 Sep Sydney

Cloudy. Very high chance of showers, becoming less likely in the late afternoon and evening. Winds south to southeasterly 20 to 30 km/h decreasing to 15 to 20 km/h in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southerly 15 to 25 knots, reaching up to 30 knots in the late morning and early afternoon. Winds turning southeasterly in the middle of the day.
Seas
1 to 2 metres.
1st Swell
Southerly 1.5 to 2.5 metres.
Weather
Cloudy. 95% chance of showers.
Weather Situation
A cold front and trough will pass over the Tasman Sea bringing a southerly change northward along the NSW coast. A ridge of high pressure will build over the coastal waters in the wake of the southerly change, turning winds east to northeasterly over the coastal waters for the early days of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Collaroy Beach Temperature Statistics View More

September Temperature

Terrey Hills (8km)

  • Lowest 10 September, 2026

    8.1 °C

  • Average September

    16.7 °C

  • Highest 21 September, 2026

    32 °C

Climate (2021–2026)

Terrey Hills (8km)

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  • Average Low 2021–2026

    13.6 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    22 °C
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