Thirroul Weather Forecast

    • 17
    • 23

    Possible shower

    • 17
    • 21

    Morning shower or two

    • 16
    • 22

    Partly cloudy

    • 17
    • 25

    Partly cloudy

    • 20
    • 28

    Shower or two. Possible storm

    • 21
    • 27

    Shower or two

    • 20
    • 26

    Partly cloudy

Today 31 Dec Wollongong

Partly cloudy. Medium chance of showers, most likely late this afternoon and evening. The chance of a thunderstorm late this afternoon and evening. Winds south to southeasterly 15 to 25 km/h.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Variable about 10 knots becoming southerly 15 to 20 knots in the middle of the day.
Seas
Below 0.5 metres, increasing to around 1 metre during the morning.
1st Swell
Southeasterly 1.5 metres, tending easterly 1.5 to 2 metres during the morning, then tending east to southeasterly 2 to 2.5 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A trough will brush the coastal waters early this morning, bringing a surge of fresh southerly winds along the coast, followed by a new ridge extending from a high passing to the south of the state, gradually turning winds northeasterly.
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  • Temperature Forecast Bureau of Meteorology

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Thirroul Temperature Statistics View More

December Temperature

Bellambi (6km)

  • Lowest 26 December, 2025

    12.1 °C

  • Average December

    20.7 °C

  • Highest 5 December, 2025

    36.7 °C

Climate (2020–Present)

Bellambi (6km)

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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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