Dark Bay Weather Forecast

    • 17
    • 21

    Rain increasing

    • 17
    • 21

    Rain easing

    • 14
    • 19

    Sunny

    • 13
    • 19

    Shower or two. Becoming windy

    • 15
    • 19

    Showers

    • 17
    • 20

    Shower or two

    • 15
    • 20

    Possible shower

Today 18 May Sydney

Cloudy. Very high chance of rain, most likely during this afternoon and evening. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northwest to northeasterly about 10 knots, reaching up to 30 knots offshore during the morning.
Seas
Below 1 metre, increasing to 1 to 2 metres offshore.
1st Swell
Northeasterly 1.5 to 2.5 metres.
Weather
Cloudy. Near 100% chance of rain. The chance of a thunderstorm offshore this morning.
Weather Situation
A strong high pressure system over the southern Tasman Sea will slowly drift east towards New Zealand over the next several days while directing an onshore easterly airstream over the coastal waters of New South Wales. A coastal trough is expected to deepen about the north coast early this week, deepening into a Tasman Low, shifting winds to the south and bringing unsettled weather.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Dark Bay Temperature Statistics View More

May Temperature

Sydney Airport (14km)

  • Lowest 8 May, 2026

    9.6 °C

  • Average May

    17.9 °C

  • Highest 3 May, 2026

    25.6 °C

Climate (2021–Present)

Sydney Airport (14km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    18.7 °C

  • Average High 2021–2026

    23.4 °C
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