Jervis Bay Weather Forecast

    • 16
    • 28

    Mostly sunny

    • 19
    • 26

    Shower or two

    • 19
    • 26

    Showers. Storm

    • 17
    • 24

    Showers

    • 17
    • 22

    Showers. Possible storm

    • 17
    • 23

    Shower or two

    • 17
    • 24

    Shower or two

Today 13 Jan Illawarra

Partly cloudy. The chance of fog in the south in the early morning. Slight chance of a shower, most likely in the afternoon. Light winds becoming northwest to northeasterly 15 to 20 km/h in the morning then tending east to northeasterly 15 to 25 km/h in the middle of the day. Overnight temperatures falling to between 13 and 17 with daytime temperatures reaching around 30.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
North to northeasterly below 10 knots increasing to 10 to 15 knots in the morning then tending east to northeasterly in the middle of the day.
Seas
Around 1 metre.
1st Swell
Easterly around 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

Jervis Bay Temperature Statistics View More

January Temperature

Point Perpendicular (8km)

  • Lowest 12 January, 2026

    15.6 °C

  • Average January

    21.3 °C

  • Highest 10 January, 2026

    39.6 °C

Climate (2021–Present)

Point Perpendicular (8km)

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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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