Boat Harbour Weather Forecast

    • 19
    • 27

    Showers increasing

    • 18
    • 24

    Showers easing

    • 18
    • 25

    Showers

    • 18
    • 25

    Shower or two

    • 17
    • 25

    Showers increasing

    • 17
    • 24

    Shower or two

    • 16
    • 25

    Possible shower

Today 17 Mar Illawarra

Cloudy. Medium chance of showers in the south, slight chance elsewhere. Light winds. Overnight temperatures falling to between 17 and 20 with daytime temperatures reaching the mid to high 20s.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Northerly 15 to 20 knots, reaching up to 25 knots offshore south of Point Perpendicular early in the morning. Winds shifting southerly 10 to 15 knots in the early afternoon.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
Southerly 1 to 1.5 metres, decreasing to around 1 metre around midday.
Weather
Cloudy. 60% chance of showers this evening. The chance of a thunderstorm later tonight.
Weather Situation
A high over the Tasman Sea extends a ridge over coastal waters, maintaining northeasterly airstream. A trough is forecast to brush the southern and central parts of the coast today, bringing a coastal southerly change in its wake, before stalling about the Hunter or Mid North Coast midweek. Then, another high pressure ridge looks set to extend across the state's south, maintaining onshore easterly winds later in the week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boat Harbour Temperature Statistics View More

March Temperature

Point Perpendicular (2km)

  • Lowest 14 March, 2026

    16.2 °C

  • Average March

    21.2 °C

  • Highest 11 March, 2026

    27.5 °C

Climate (2021–Present)

Point Perpendicular (2km)

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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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