Montagu Roadstead Weather Forecast

    • 11
    • 19

    Possible shower

    • 13
    • 21

    Showers

    • 14
    • 24

    Partly cloudy

    • 13
    • 29

    Mostly sunny

    • 15
    • 30

    Becoming cloudy

    • 14
    • 22

    Possible shower

    • 13
    • 24

    Partly cloudy

Today 22 Sep Illawarra

Cloudy. High chance of showers in the north, medium chance elsewhere. Winds easterly 15 to 20 km/h becoming light in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Easterly 10 to 15 knots, reaching up to 20 knots offshore north of Port Kembla in the evening.
Seas
Around 1 metre.
1st Swell
Southerly 1.5 to 2 metres.
Weather
Cloudy. 50% chance of showers.
Weather Situation
Southeasterly winds lie over the coastal waters, fresh and gusty in the northeast. A high pressure system is forecast to slip south and enter the Tasman Sea by mid-week, turning the winds east to northeasterly from Wednesday and freshen along the southern and central coastal waters. A southerly change is forecast to move over the coastal waters from Saturday, tracking north over the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Montagu Roadstead Temperature Statistics View More

September Temperature

Point Perpendicular (6km)

  • Lowest 18 September, 2026

    9.6 °C

  • Average September

    16.9 °C

  • Highest 19 September, 2026

    29.1 °C

Climate (2021–2026)

Point Perpendicular (6km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.9 °C
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