Cudmirrah Beach Weather Forecast

    • 10
    • 25

    Mostly sunny

    • 13
    • 25

    Shower or two

    • 13
    • 22

    Showers increasing

    • 8
    • 17

    Windy. Partly cloudy

    • 10
    • 17

    Partly cloudy

    • 8
    • 22

    Sunny

    • 11
    • 25

    Sunny

Today 13 Sep Illawarra

Partly cloudy. Patchy fog in the early morning. The chance of smoke haze in the north in the morning. Light winds becoming west to northwesterly 15 to 20 km/h in the early morning then tending northwest to northeasterly in the early afternoon. Overnight temperatures falling to between 7 and 11 with daytime temperatures reaching the low to mid 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Port Kembla in the evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Port Kembla during the afternoon.
1st Swell
Southerly 1 to 1.5 metres.
Weather
Sunny.
Weather Situation
A high pressure system will drift across the Tasman Sea this weekend, causing winds to turn northeasterly. Northerly winds are expected to increase on Monday before turning southerly in the far south. This southerly change will continue to move north along the coast on Tuesday and strengthen.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cudmirrah Beach Temperature Statistics View More

September Temperature

Ulladulla (21km)

  • Lowest 10 September, 2026

    7.7 °C

  • Average September

    16.4 °C

  • Highest 2 September, 2026

    27.3 °C

Climate (2021–2026)

Ulladulla (21km)

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  • Average Low 2021–2026

    13.8 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    20.9 °C
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