Yarramundi Weather Forecast

    • 13
    • 25

    Partly cloudy

    • 12
    • 28

    Mostly sunny

    • 12
    • 31

    Sunny

    • 15
    • 31

    Partly cloudy

    • 18
    • 26

    Possible shower

    • 16
    • 27

    Cloudy

    • 16
    • 31

    Shower or two

Today 28 Dec Sydney

Partly cloudy. Medium chance of showers along the coastal fringe, slight chance elsewhere. Winds southwesterly 15 to 25 km/h turning south to southeasterly 25 to 35 km/h in the early morning then becoming south to southwesterly and light in the late evening.

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Yarramundi Temperature Statistics View More

December Temperature

Penrith Lakes (9km)

  • Lowest 1 December, 2025

    11.3 °C

  • Average December

    23.4 °C

  • Highest 19 December, 2025

    41.9 °C

Climate (2020–Present)

Penrith Lakes (9km)

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  • Average Low 2020–2025

    12.5 °C

  • Average 2020–2025

    17.7 °C

  • Average High 2020–2025

    24.8 °C
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