Flatrock Beach Weather Forecast

    • 14
    • 27

    Shower or two. Windy

    • 14
    • 21

    Sunny

    • 12
    • 19

    Shower or two

    • 11
    • 17

    Cloud clearing

    • 10
    • 17

    Shower or two

    • 9
    • 17

    Mostly sunny

    • 9
    • 20

    Sunny

Today 5 Sep South Coast

Cloudy. High chance of showers, becoming less likely in the late afternoon and evening. The chance of a thunderstorm along the coastal fringe in the late afternoon and evening. Damaging winds possible. Winds north to northwesterly 25 to 40 km/h tending west to northwesterly 30 to 45 km/h in the early afternoon. Daytime maximum temperatures 20 to 27.

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.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Flatrock Beach Temperature Statistics View More

September Temperature

Ulladulla (14km)

  • Lowest 1 September, 2026

    9.9 °C

  • Average September

    18.9 °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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