Boat Harbour Weather Forecast

    • 16
    • 28

    Mostly sunny

    • 19
    • 27

    Shower or two

    • 19
    • 27

    Showers. Storm developing

    • 17
    • 24

    Showers increasing

    • 17
    • 21

    Showers. Possible late storm

    • 17
    • 22

    Showers

    • 16
    • 24

    Shower or two

Today 13 Jan Illawarra

Partly cloudy. Slight chance of a shower, becoming less likely in the late afternoon and evening. Winds north to northeasterly 15 to 20 km/h tending east to northeasterly 15 to 25 km/h in the middle of the day. Daytime maximum temperatures around 30.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northeasterly 10 to 15 knots tending east to northeasterly in the early afternoon.
Seas
Around 1 metre.
1st Swell
Southerly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A series of high pressure systems passing to the south of the state extends a ridge along New South Wales coast, maintaining an onshore east to northeasterly airstream. Then, a trough looks set to develop near the south coast later in the week and brushes the entire coast on Friday and through the weekend, bringing fresh to strong southeasterly winds in its wake.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boat Harbour Temperature Statistics View More

January Temperature

Point Perpendicular (2km)

  • Lowest 12 January, 2026

    15.6 °C

  • Average January

    21.3 °C

  • Highest 10 January, 2026

    39.6 °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

    20.7 °C
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