Mary Bay Weather Forecast

    • 9
    • 21

    Partly cloudy

    • 12
    • 21

    Morning drizzle

    • 13
    • 22

    Shower or two

    • 14
    • 21

    Showers

    • 13
    • 21

    Showers easing

    • 12
    • 21

    Shower or two

    • 11
    • 22

    Possible shower

Today 10 May Illawarra

Mostly clear. Winds south to southeasterly 15 to 20 km/h becoming light in the evening.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southerly 10 to 15 knots, reaching up to 20 knots north of Point Perpendicular during the afternoon and evening.
Seas
1 to 1.5 metres, decreasing to 1 metre later in the evening.
1st Swell
Southerly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system near the Bight extends a ridge across New South Wales. This high will gradually move east, reaching the Tasman Sea on Tuesday. Little change to this pattern is expected for the remainder of the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Mary Bay Temperature Statistics View More

May Temperature

Point Perpendicular (13km)

  • Lowest 8 May, 2026

    10.6 °C

  • Average May

    17.2 °C

  • Highest 2 May, 2026

    23.9 °C

Climate (2021–Present)

Point Perpendicular (13km)

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  • Average Low 2021–2026

    14.7 °C

  • Average 2021–2026

    17.4 °C

  • Average High 2021–2026

    20.8 °C
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