Killarney Heights Weather Forecast

    • 19
    • 28

    Shower or two

    • 14
    • 19

    Shower or two

    • 15
    • 22

    Shower or two

    • 15
    • 24

    Mostly sunny

    • 15
    • 26

    Sunny

    • 16
    • 28

    Possible shower developing

    • 15
    • 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.

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  • Temperature Forecast Bureau of Meteorology

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Killarney Heights Temperature Statistics View More

September Temperature

Sydney (Observatory Hill) (9km)

  • Lowest 18 September, 2026

    9.4 °C

  • Average September

    17.5 °C

  • Highest 5 September, 2026

    32.1 °C

Climate (2021–2026)

Sydney (Observatory Hill) (9km)

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  • Average Low 2021–2026

    14.9 °C

  • Average 2021–2026

    18.5 °C

  • Average High 2021–2026

    23.6 °C
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