Hawkesbury River - Porto Bay Weather Forecast

    • 21
    • 29

    Partly cloudy

    • 20
    • 39

    Mostly sunny

    • 23
    • 31

    Shower or two

    • 19
    • 29

    Shower or two

    • 17
    • 28

    Partly cloudy

    • 18
    • 25

    Shower or two

    • 16
    • 25

    Cloudy

Today 20 Dec Central Coast

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm. Winds easterly 15 to 20 km/h becoming light in the evening.

Sydney Enclosed Waters

Sydney Harbour, Pittwater and Botany Bay
Wind
East to northeasterly 10 to 15 knots becoming variable below 10 knots in the evening.
Seas
Below 0.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm.
Weather Situation
A high in the Tasman Sea is directing northerly winds over Sydney local waters. A cold front will bring a fresh south to southeasterly change on Monday.
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  • Temperature Forecast Bureau of Meteorology

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Hawkesbury River - Porto Bay Temperature Statistics View More

December Temperature

Terrey Hills (14km)

  • Lowest 3 December, 2025

    11.3 °C

  • Average December

    21.4 °C

  • Highest 6 December, 2025

    39.9 °C

Climate (2020–Present)

Terrey Hills (14km)

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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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