Helensburgh Weather Forecast

    • 21
    • 35

    Cloudy

    • 23
    • 30

    Possible shower

    • 19
    • 28

    Possible shower

    • 18
    • 29

    Sunny day. Late shower or two

    • 17
    • 21

    Showers

    • 15
    • 22

    Partly cloudy

    • 15
    • 23

    Partly cloudy

Today 21 Dec Wollongong

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm, possibly severe with damaging winds and heavy rain which may lead to flash flooding. Winds north to northwesterly 15 to 20 km/h.

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Helensburgh Temperature Statistics View More

December Temperature

Bellambi (20km)

  • Lowest 2 December, 2025

    12.8 °C

  • Average December

    21.1 °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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