Jervis Bay Harbour Weather Forecast

    • 17
    • 32

    Clear

    • 19
    • 35

    Sunny

    • 19
    • 33

    Sunny

    • 21
    • 41

    Sunny

    • 17
    • 23

    Shower or two

    • 16
    • 25

    Cloudy

    • 16
    • 28

    Possible shower

Today 7 Jan Illawarra

Clear. Winds northwest to northeasterly 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 Point Perpendicular.
Seas
1.5 metres, increasing to 2 metres south of Point Perpendicular.
1st Swell
Southerly below 0.5 metres.
Weather
Clear.
Weather Situation
Onshore north to northeasterly winds along the coast will continue to freshen through this week as a high over the Tasman Sea strengthens while extending a ridge along the coastal waters. Then, a cold front and its associated trough looks set to cross the coastal areas during the weekend, bringing a fresh to strong southerly wind change in their wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jervis Bay Harbour Temperature Statistics View More

January Temperature

Point Perpendicular (9km)

  • Lowest 1 January, 2026

    16.1 °C

  • Average January

    19.9 °C

  • Highest 4 January, 2026

    27.2 °C

Climate (2021–Present)

Point Perpendicular (9km)

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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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