Flatrock Beach Weather Forecast

    • 13
    • 14

    Showers

    • 13
    • 18

    Partly cloudy

    • 9
    • 21

    Sunny

    • 13
    • 26

    Sunny

    • 17
    • 28

    Mostly sunny

    • 19
    • 23

    Showers

    • 13
    • 18

    Shower or two

Today 27 Sep South Coast

Cloudy. High chance of showers in the north, slight chance elsewhere. Winds south to southeasterly 15 to 20 km/h becoming light in the late afternoon. Daytime maximum temperatures between 10 and 16.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southeasterly 15 to 20 knots, reaching up to 30 knots north of Point Perpendicular in the late morning.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres by early evening.
1st Swell
Southerly 1.5 metres, increasing to 1.5 to 2 metres by early evening, then tending south to southeasterly 1.5 to 2 metres later in the evening.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A cold front and trough will pass over the Tasman Sea bringing a southerly change northward along the NSW coast. A ridge of high pressure will build over the coastal waters in the wake of the southerly change, turning winds east to northeasterly over the coastal waters for the early days of the week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Flatrock Beach Temperature Statistics View More

September Temperature

Ulladulla (14km)

  • Lowest 16 September, 2026

    6.9 °C
  • Average September

    16.9 °C
  • Highest 20 September, 2026

    30.2 °C

Climate (2021–2026)

Ulladulla (14km)

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  • Average Low 2021–2026

    13.9 °C
  • Average 2021–2026

    17.1 °C
  • Average High 2021–2026

    21 °C
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