Killarney Heights Weather Forecast

    • 19
    • 25

    Possible shower

    • 19
    • 24

    Showers. Possible storm

    • 19
    • 24

    Showers. Possible afternoon storm

    • 18
    • 28

    Shower or two. Possible storm

    • 19
    • 31

    Mostly sunny

    • 19
    • 24

    Shower or two

    • 17
    • 23

    Cloudy

Today 10 Dec Sydney

Cloudy. Medium chance of showers, most likely later this evening. The chance of a thunderstorm later this evening. Winds east to southeasterly 15 to 25 km/h increasing to 30 km/h before tending south to southeasterly 15 to 25 km/h in the 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

    22.6 °C

  • Highest 5 December, 2025

    37.8 °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

    23.4 °C
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