Jervis Bay Harbour Weather Forecast

    • 18
    • 24

    Partly cloudy

    • 16
    • 26

    Sunny

    • 18
    • 28

    Mostly sunny

    • 20
    • 32

    Shower or two

    • 17
    • 24

    Shower or two

    • 16
    • 23

    Cloudy

    • 17
    • 25

    Possible shower

Today 4 Dec Illawarra

Cloudy. Slight chance of a shower in the early morning. Winds northwesterly 15 to 20 km/h becoming light before dawn then becoming south to southeasterly 15 to 25 km/h early in the morning. Overnight temperatures falling to between 16 and 19 with daytime temperatures reaching 21 to 26.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northwesterly 15 to 20 knots shifting south to southeasterly 10 to 15 knots during the day.
Seas
1 to 1.5 metres.
1st Swell
Southerly around 1 metre, increasing to 1 to 1.5 metres around midday.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jervis Bay Harbour Temperature Statistics View More

December Temperature

Point Perpendicular (9km)

  • Lowest 1 December, 2024

    18.5 °C

  • Average December

    22.3 °C

  • Highest 1 December, 2024

    28.3 °C

Climate (2019–Present)

Point Perpendicular (9km)

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  • Average Low 2019–2024

    14.6 °C

  • Average 2019–2024

    17.3 °C

  • Average High 2019–2024

    20.6 °C
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