Helensburgh Weather Forecast

    • 19
    • 34

    Mostly sunny

    • 21
    • 33

    Possible shower

    • 21
    • 31

    Shower or two. Possible storm

    • 21
    • 32

    Shower or two. Possible storm

    • 21
    • 28

    Shower or two

    • 19
    • 26

    Shower or two

    • 18
    • 28

    Possible shower

Today 18 Dec Wollongong

Mostly sunny. Winds north to northwesterly 15 to 20 km/h tending north to northeasterly 20 to 30 km/h in the morning then tending north to northwesterly 15 to 20 km/h in the late evening.

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Helensburgh Temperature Statistics View More

December Temperature

Bellambi (20km)

  • Lowest 2 December, 2025

    12.8 °C

  • Average December

    20.7 °C

  • Highest 5 December, 2025

    36.7 °C

Climate (2020–Present)

Bellambi (20km)

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  • Average Low 2020–2025

    15 °C

  • Average 2020–2025

    18 °C

  • Average High 2020–2025

    21.8 °C
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