Marley Head Weather Forecast

    • 19
    • 26

    Shower or two. Windy

    • 15
    • 18

    Shower or two

    • 16
    • 21

    Shower or two

    • 17
    • 22

    Mostly sunny

    • 16
    • 25

    Sunny

    • 17
    • 26

    Possible shower

    • 16
    • 20

    Shower or two

Today 21 Sep Sydney

Becoming cloudy. Medium chance of showers during this afternoon and evening. The chance of a thunderstorm in the outer west this afternoon. Winds west to northwesterly 15 to 20 km/h shifting south to southeasterly 25 to 40 km/h during the morning.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northwesterly 15 to 20 knots shifting southerly 15 to 25 knots in the morning. Winds reaching up to 30 knots in the late afternoon.
Seas
1 to 1.5 metres, increasing to 2 to 2.5 metres around midday.
1st Swell
Southerly 1 to 1.5 metres, increasing to 2 to 3 metres around midday.
Weather
Becoming cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs a northwesterly flow over much of the state, with a fresh and gusty southerly change moving across the coastal waters today, reaching the QLD border by Tuesday. A second high pressure system is forecast to slip south and enter the Tasman Sea by mid-week, turning the winds east to northeasterly.
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  • Temperature Forecast Bureau of Meteorology

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Marley Head Temperature Statistics View More

September Temperature

Sydney Airport (18km)

  • Lowest 18 September, 2026

    9.1 °C

  • Average September

    17.9 °C

  • Highest 5 September, 2026

    32.4 °C

Climate (2021–2026)

Sydney Airport (18km)

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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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