Flatrock Beach Weather Forecast

    • 11
    • 23

    Mostly clear

    • 13
    • 25

    Partly cloudy

    • 15
    • 20

    Showers increasing

    • 9
    • 16

    Windy. Partly cloudy

    • 9
    • 17

    Partly cloudy

    • 9
    • 21

    Sunny

    • 11
    • 24

    Sunny

Today 13 Sep South Coast

Mostly clear. Winds northeast to southeasterly 15 to 20 km/h becoming light in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northeasterly 15 to 20 knots turning northerly in the evening. Winds 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 by early evening.
1st Swell
Southerly 1 to 1.5 metres.
Weather
Mostly clear.
Weather Situation
Northerly winds will increase on Monday before a trough brings a southerly change to the far south in the evening. This southerly change will continue to move north along the coast on Tuesday and then strengthen as a cold front reaches the Tasman Sea. After this, southerly winds will persist as a new ridge of high pressure extends across from the west.
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  • Temperature Forecast Bureau of Meteorology

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Flatrock Beach Temperature Statistics View More

September Temperature

Ulladulla (14km)

  • Lowest 10 September, 2026

    7.7 °C

  • Average September

    16.4 °C

  • Highest 2 September, 2026

    27.3 °C

Climate (2021–2026)

Ulladulla (14km)

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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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