Merries Reef Weather Forecast

    • 13
    • 20

    Sunny

    • 13
    • 20

    Sunny

    • 14
    • 21

    Possible shower

    • 16
    • 20

    Shower or two

    • 16
    • 21

    Possible shower

    • 14
    • 22

    Partly cloudy

    • 15
    • 23

    Mostly sunny

Today 18 Apr Sydney

Sunny. The chance of fog in the west in the early morning. Light winds becoming south to southeasterly 15 to 25 km/h in the middle of the day then becoming light in the evening.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Southwesterly 15 to 25 knots turning southerly in the early afternoon.
Seas
1 to 2 metres.
1st Swell
Southerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore by early evening.
Weather
Mostly sunny.
Caution
Large and powerful surf conditions in the evening are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing.
Weather Situation
A southerly change is moving north along the coast and is forecast to reach the northern border early Saturday morning. In the wake of this, the a high pressure system over southern NSW will extend a ridge over NSW waters. The high is expected to move east next week reaching the southern Tasman Sea by Sunday, maintaining settled weather.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Merries Reef Temperature Statistics View More

April Temperature

Sydney Airport (11km)

  • Lowest 12 April, 2026

    12 °C

  • Average April

    20.4 °C

  • Highest 9 April, 2026

    30.5 °C

Climate (2021–Present)

Sydney Airport (11km)

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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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