Killarney Heights Weather Forecast

    • 15
    • 23

    Partly cloudy

    • 15
    • 24

    Possible shower

    • 16
    • 25

    Partly cloudy

    • 15
    • 26

    Sunny

    • 17
    • 27

    Mostly sunny

    • 19
    • 26

    Cloudy

    • 19
    • 27

    Possible shower

Today 27 Dec Sydney

Partly cloudy. Slight chance of a shower along the coastal fringe at night. Near zero chance of rain elsewhere. Winds south to southeasterly 20 to 30 km/h tending south to southwesterly 15 to 20 km/h in the late evening.

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Killarney Heights Temperature Statistics View More

December Temperature

Sydney (Observatory Hill) (9km)

  • Lowest 2 December, 2025

    13.3 °C

  • Average December

    22.7 °C

  • Highest 19 December, 2025

    42.2 °C

Climate (2020–Present)

Sydney (Observatory Hill) (9km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    18.3 °C

  • Average High 2020–2025

    23.5 °C
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