Mary Bay Weather Forecast

    • 12
    • 21

    Clear

    • 11
    • 17

    Windy. Mostly sunny

    • 9
    • 17

    Sunny

    • 8
    • 15

    Showers

    • 10
    • 16

    Showers

    • 9
    • 16

    Shower or two

    • 8
    • 17

    Possible shower

Today 2 Jul Illawarra

Clear. Winds northwesterly 20 to 30 km/h.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northwesterly 15 to 20 knots, reaching up to 30 knots offshore north of Point Perpendicular.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Point Perpendicular.
1st Swell
Northeasterly below 1 metre.
Weather
Clear.
Weather Situation
Fresh to strong northwesterly winds will turn west to southwesterly on Friday following the passage of a cold front. A high pressure system over the Bight will then drift towards Tasmania while a low develops near New Zealand, bringing fresh to strong southerly winds and large, powerful waves to the coastal areas over the weekend and into early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Bay Temperature Statistics View More

July Temperature

Point Perpendicular (13km)

  • Lowest 1 July, 2026

    14 °C

  • Average July

    16.4 °C

  • Highest 1 July, 2026

    19.2 °C

Climate (2021–2026)

Point Perpendicular (13km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    20.8 °C
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