Quarantine Beach Weather Forecast

    • 19
    • 29

    Shower or two. Windy

    • 15
    • 18

    Showers increasing

    • 16
    • 21

    Showers easing

    • 17
    • 22

    Mostly sunny

    • 16
    • 24

    Sunny

    • 17
    • 27

    Sunny

    • 16
    • 21

    Cloudy

Today 21 Sep Sydney

Cloudy. Medium chance of showers, most likely later this evening. The chance of a thunderstorm in the outer west early this evening. Winds southeasterly 25 to 40 km/h tending southerly 20 to 30 km/h in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
Southerly 20 to 30 knots tending south to southeasterly 15 to 25 knots in the late afternoon.
Seas
Below 0.5 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
A fresh and gusty southerly change has moved over the Sydney Waters. Winds are forecast to turn northeasterly by Wednesday as a high pressure system slips south and enter the Tasman Sea by mid-week, turning the winds northeasterly.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Quarantine Beach Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (9km)

  • Lowest 18 September, 2026

    9.4 °C

  • Average September

    17.5 °C

  • Highest 5 September, 2026

    32.1 °C

Climate (2021–2026)

Sydney (Observatory Hill) (9km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    23.6 °C
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