Lake Illawarra - Entrance Weather Forecast

    • 8
    • 23

    Mostly clear

    • 17
    • 28

    Sunny

    • 17
    • 30

    Sunny

    • 19
    • 25

    Shower or two

    • 13
    • 17

    Possible shower

    • 14
    • 21

    Possible shower

    • 15
    • 24

    Mostly sunny

Today 18 Sep Wollongong

Mostly clear. Winds westerly 15 to 25 km/h.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Westerly 15 to 20 knots, reaching up to 25 knots offshore south of Port Kembla.
Seas
Around 1 metre.
1st Swell
Southerly 1.5 metres, increasing to 1.5 to 2 metres south of Port Kembla.
Weather
Mostly clear.
Weather Situation
A high pressure system over the state is extending a strong ridge over the New South Wales Coastal Waters, bringing moderate to fresh south to southwesterly winds. The winds weaken as the high moves over the Tasman Sea on Sunday. Behind this, a cold front will brush the southern coastal waters on Monday, leaving a southerly change in its wake. The change is expected to reach the QLD border on Tuesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Lake Illawarra - Entrance Temperature Statistics View More

September Temperature

Illawarra Regional Airport (8km)

  • Lowest 9 September, 2026

    4.9 °C

  • Average September

    15.6 °C

  • Highest 5 September, 2026

    31.1 °C

Climate (2021–2026)

Illawarra Regional Airport (8km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.3 °C

  • Average High 2021–2026

    22.8 °C
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