Dark Bay Weather Forecast

    • 14
    • 22

    Sunny

    • 16
    • 29

    Windy. Mostly sunny

    • 15
    • 22

    Sunny

    • 13
    • 21

    Shower or two

    • 14
    • 18

    Possible shower

    • 13
    • 18

    Shower or two

    • 13
    • 18

    Mostly sunny

Today 4 Sep Sydney

Sunny. Winds west to southwesterly 15 to 25 km/h tending northwest to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
West to southwesterly 15 to 20 knots, reaching up to 25 knots offshore early in the morning. Winds shifting north to northeasterly 10 to 15 knots in the early afternoon then tending north to northwesterly in the late evening.
Seas
1 to 1.5 metres, decreasing below 1 metre during the morning.
1st Swell
Southerly around 1 metre, increasing to 1 to 2 metres during the morning, then decreasing to 1 to 1.5 metres during the afternoon.
Weather
Mostly sunny.
Weather Situation
North to northwesterly winds ahead of a trough and associated cold front crosses the coastal waters during today, driving west to southwesterly winds in its wake. North to northwesterly winds are forecast to redevelop ahead of a series of fronts crossing the waters during the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dark Bay Temperature Statistics View More

September Temperature

Sydney Airport (14km)

  • Lowest 1 September, 2026

    11.5 °C
  • Average September

    21.3 °C
  • Highest 2 September, 2026

    28.9 °C

Climate (2021–2026)

Sydney Airport (14km)

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  • Average Low 2021–2026

    14.9 °C
  • Average 2021–2026

    18.8 °C
  • Average High 2021–2026

    23.5 °C
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