Mary Bay Weather Forecast

    • 12
    • 22

    Partly cloudy

    • 14
    • 20

    Shower or two

    • 11
    • 19

    Mostly sunny

    • 9
    • 17

    Possible shower

    • 8
    • 17

    Shower or two

    • 7
    • 17

    Sunny

    • 8
    • 16

    Shower or two

Today 18 Jun Illawarra

Partly cloudy. Winds northerly 15 to 20 km/h.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 20 knots, reaching up to 25 knots offshore south of Port Kembla.
Seas
1.5 metres.
1st Swell
Northeasterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea is extending ridge across the northern coastal waters while drifting eastwards, bringing a north to northwesterly airstream today. Winds will freshen as a cold front approaches from the west, before turning westerly on Saturday following its passage. From late Saturday or Sunday, winds will turn southerly as a second cold front brushes the coast.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Bay Temperature Statistics View More

June Temperature

Point Perpendicular (13km)

  • Lowest 6 June, 2026

    9.5 °C

  • Average June

    15.6 °C

  • Highest 10 June, 2026

    21 °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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