Merries Reef Weather Forecast

    • 15
    • 18

    Partly cloudy

    • 13
    • 20

    Cloud clearing

    • 13
    • 24

    Sunny

    • 16
    • 28

    Sunny

    • 18
    • 26

    Showers

    • 17
    • 21

    Shower or two

    • 15
    • 21

    Possible shower

Today 28 Sep Sydney

Cloudy. Slight chance of a shower. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
East to southeasterly about 10 knots.
Seas
Below 1 metre.
1st Swell
South to southeasterly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Partly cloudy.
Weather Situation
A high pressure system west of Tasmania is directing onshore east to southeasterly airstream over the coastal waters while heading eastwards. Winds will turn north to northeasterly from Tuesday onwards as the high enters the Tasman Sea tonight or early Tuesday. A trough is then forecast to cross the southern and central parts of the coast late Thursday into Friday, with a southerly wind change in its wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merries Reef Temperature Statistics View More

September Temperature

Sydney Airport (11km)

  • Lowest 18 September, 2026

    9.1 °C

  • Average September

    18.2 °C

  • Highest 26 September, 2026

    33.8 °C

Climate (2021–2026)

Sydney Airport (11km)

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  • Average Low 2021–2026

    15 °C

  • Average 2021–2026

    18.8 °C

  • Average High 2021–2026

    23.5 °C
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