Mona Vale Beach Weather Forecast

    • 16
    • 21

    Partly cloudy

    • 16
    • 24

    Sunny

    • 18
    • 24

    Partly cloudy

    • 19
    • 21

    Possible shower

    • 19
    • 22

    Cloudy

    • 19
    • 25

    Partly cloudy

    • 20
    • 27

    Shower or two

Today 29 Dec Sydney

Mostly sunny. Light winds becoming 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
Southerly 10 to 15 knots turning southeasterly in the afternoon.
Seas
Below 1 metre.
1st Swell
Southerly 1.5 to 2 metres, tending southeasterly 1.5 to 2 metres around midday.
Weather
Partly cloudy.
Weather Situation
A fresh to strong southerly surge is moving north along the coast today following the earlier passage of a cold front over the Tasman Sea. A high pressure ridge along the coast will maintain south to southeast winds along much of the northern coast for the first half of this week, whist winds tend east to northeast along much of the southern coast ahead of another front that crosses Tasmania and moves over the Tasman Sea. Another fresh to possibly strong southerly surge moves north along the coast on Wednesday following the second front.
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  • Temperature Forecast Bureau of Meteorology

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Mona Vale Beach Temperature Statistics View More

December Temperature

Terrey Hills (8km)

  • Lowest 3 December, 2025

    11.3 °C
  • Average December

    21.1 °C
  • Highest 19 December, 2025

    40.2 °C

Climate (2020–Present)

Terrey Hills (8km)

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  • Average Low 2020–2025

    13.4 °C
  • Average 2020–2025

    16.9 °C
  • Average High 2020–2025

    21.8 °C
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