Jervis Bay Weather Forecast

    • 15
    • 26

    Partly cloudy

    • 15
    • 23

    Shower or two

    • 16
    • 23

    Showers

    • 15
    • 29

    Shower or two

    • 16
    • 31

    Possible shower

    • 15
    • 23

    Shower or two

    • 14
    • 23

    Partly cloudy

Today 10 Dec Illawarra

Partly cloudy. The chance of fog about higher ground in the early morning. Medium chance of showers in the late afternoon and evening. The chance of a thunderstorm in the late afternoon and evening, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the north. Winds southeast to southwesterly 15 to 20 km/h tending northeast to southeasterly 15 to 25 km/h in the morning then tending south to southeasterly in the evening. Overnight temperatures falling to between 11 and 16 with daytime temperatures reaching 24 to 30.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
South to southeasterly 15 to 20 knots, reaching up to 25 knots north of Point Perpendicular early in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southerly around 1 metre.
Weather
Partly cloudy. 50% chance of showers. The chance of a thunderstorm in the evening.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jervis Bay Temperature Statistics View More

December Temperature

Point Perpendicular (8km)

  • Lowest 2 December, 2025

    10.3 °C
  • Average December

    20.1 °C
  • Highest 5 December, 2025

    33 °C

Climate (2020–Present)

Point Perpendicular (8km)

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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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