Mona Vale Beach Weather Forecast

    • 12
    • 21

    Partly cloudy

    • 15
    • 21

    Shower or two

    • 12
    • 19

    Sunny

    • 12
    • 19

    Partly cloudy

    • 13
    • 22

    Shower or two

    • 16
    • 22

    Showers

    • 14
    • 19

    Possible shower

Today 20 Aug Sydney

Partly cloudy. The chance of fog this morning, mainly in the west. Slight chance of a shower during this afternoon and evening. Light winds.

Sydney Coastal Waters

Broken Bay to Port Hacking
Wind
Northerly 15 to 20 knots.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
East to southeasterly below 1 metre.
Weather
Mostly sunny.
Weather Situation
A high pressure system over Tasman Sea is directing onshore east to northeasterly winds along the NSW coast. North to northeasterly winds will strengthen and extend north during today as a trough approaches from the west. Winds easing and shifting west to southwesterly from Friday as a series of cold fronts brush the south, before another high pressure system moves into the Tasman Sea later in the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mona Vale Beach Temperature Statistics View More

August Temperature

Terrey Hills (8km)

  • Lowest 5 August, 2026

    4.6 °C

  • Average August

    12.2 °C

  • Highest 3 August, 2026

    20.5 °C

Climate (2021–2026)

Terrey Hills (8km)

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  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    21.9 °C
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