Montagu Roadstead Weather Forecast

    • 11
    • 24

    Sunny

    • 15
    • 26

    Possible late shower. Windy

    • 12
    • 21

    Sunny

    • 11
    • 20

    Partly cloudy

    • 10
    • 24

    Possible late shower

    • 13
    • 20

    Partly cloudy

    • 11
    • 18

    Partly cloudy

Today 15 Sep Illawarra

Sunny. Winds west to northwesterly 20 to 30 km/h. Daytime maximum temperatures 20 to 25.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northwesterly 15 to 20 knots turning northerly in the middle of the day. Winds reaching up to 25 knots offshore south of Point Perpendicular in the afternoon.
Seas
1 to 2 metres.
1st Swell
Southerly around 1 metre.
Weather
Sunny.
Weather Situation
Northerly winds will strengthen on Monday and Tuesday as a cold front approaches from the west and a high pressure system moves away over the Tasman Sea. This front will bring a west to southwesterly change to southern and central waters later Tuesday and Wednesday, and then weaken over the northern coastal waters as a ridge of high pressure develops.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Montagu Roadstead Temperature Statistics View More

September Temperature

Point Perpendicular (6km)

  • Lowest 1 September, 2025

    9.2 °C

  • Average September

    15.5 °C

  • Highest 8 September, 2025

    25.6 °C

Climate (2020–Present)

Point Perpendicular (6km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    20.7 °C
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