Boat Harbour Weather Forecast

    • 9
    • 22

    Sunny

    • 11
    • 24

    Sunny

    • 16
    • 26

    Windy. Partly cloudy

    • 11
    • 20

    Sunny

    • 9
    • 21

    Mostly sunny

    • 11
    • 25

    Late shower or two

    • 14
    • 21

    Shower or two

Today 14 Sep Illawarra

Sunny. Patchy fog inland early this morning. Winds west to northwesterly 15 to 25 km/h. Daytime maximum temperatures between 18 and 23.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northwesterly about 10 knots increasing to 15 to 20 knots in the morning then tending west to northwesterly in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore by early evening.
1st Swell
Southerly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon.
Weather
Sunny.
Weather Situation
Northerly winds are expected to strengthen along the coast today as a high pressure system reaches the Tasman Sea. These winds will persist through Monday and Tuesday and then shift west to southwesterly as a cold front and trough cross the coast later Tuesday and early Wednesday. After this, another ridge of high pressure is likely to develop.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boat Harbour Temperature Statistics View More

September Temperature

Point Perpendicular (2km)

  • Lowest 1 September, 2025

    9.2 °C

  • Average September

    15.5 °C

  • Highest 8 September, 2025

    25.6 °C

Climate (2020–Present)

Point Perpendicular (2km)

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  • Average Low 2020–2025

    14.7 °C

  • Average 2020–2025

    17.4 °C

  • Average High 2020–2025

    20.7 °C
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