Thirroul Weather Forecast

    • 12
    • 23

    Possible late shower

    • 16
    • 20

    Sunny

    • 11
    • 21

    Mostly sunny

    • 13
    • 21

    Shower or two developing

    • 10
    • 17

    Shower or two

    • 12
    • 20

    Sunny

    • 12
    • 23

    Mostly sunny

Today 19 Sep Wollongong

Sunny morning. Medium chance of showers in the late afternoon and evening. Light winds becoming north to northwesterly 20 to 30 km/h in the morning.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northwesterly 15 to 20 knots tending west to northwesterly before dawn then turning northerly during the morning. Winds reaching up to 25 knots offshore north of Point Perpendicular early in the morning and again in the late evening.
Seas
1 to 2 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres around midday.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre during the morning.
Weather
Mostly sunny day. The chance of a thunderstorm offshore in the evening.
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Thirroul Temperature Statistics View More

September Temperature

Bellambi (6km)

  • Lowest 1 September, 2025

    9.1 °C

  • Average September

    16.9 °C

  • Highest 8 September, 2025

    28.6 °C

Climate (2020–Present)

Bellambi (6km)

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  • Average Low 2020–2025

    15 °C

  • Average 2020–2025

    17.9 °C

  • Average High 2020–2025

    21.6 °C
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