Thirroul Weather Forecast

    • 14
    • 30

    Windy. Becoming partly cloudy

    • 14
    • 22

    Mostly sunny

    • 14
    • 20

    Shower or two

    • 12
    • 18

    Partly cloudy

    • 11
    • 18

    Shower or two

    • 11
    • 18

    Mostly sunny

    • 11
    • 20

    Sunny

Today 5 Sep Wollongong

Partly cloudy. Slight chance of a shower, most likely in the late afternoon and evening. Damaging winds possible. Winds north to northwesterly 35 to 50 km/h turning westerly 30 to 35 km/h in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 25 knots turning west to northwesterly in the late afternoon. Winds reaching up to 30 knots offshore south of Port Kembla in the late evening.
Seas
Around 1 metre, increasing to 1 to 2 metres around midday.
1st Swell
Southerly around 1 metre.
Weather
Mostly sunny day. The chance of a thunderstorm offshore north of Port Kembla in the evening.
Weather Situation
North to northwesterly winds over Coastal Waters ahead of a vigorous cold front crossing the waters late today into Sunday. Winds turning westerly in behind the front before tending southwesterly to southerly as a high pressure ridge begins to form over the NSW coast. The ridge will persist into the new week.
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  • Temperature Forecast Bureau of Meteorology

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Thirroul Temperature Statistics View More

September Temperature

Bellambi (6km)

  • Lowest 1 September, 2026

    12.6 °C

  • Average September

    19.3 °C

  • Highest 2 September, 2026

    27.5 °C

Climate (2021–2026)

Bellambi (6km)

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  • Average Low 2021–2026

    15.1 °C

  • Average 2021–2026

    18 °C

  • Average High 2021–2026

    21.8 °C
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