Jervis Bay Harbour Weather Forecast

    • 16
    • 22

    Showers

    • 17
    • 22

    Showers

    • 16
    • 23

    Shower or two

    • 15
    • 25

    Possible shower

    • 16
    • 23

    Shower or two

    • 15
    • 21

    Shower or two

    • 14
    • 21

    Shower or two

Today 22 Apr Illawarra

Cloudy. Very high chance of showers. The chance of a thunderstorm this morning. Winds south to southwesterly 20 to 30 km/h tending south to southeasterly 15 to 25 km/h in the late morning and afternoon. Daytime maximum temperatures between 17 and 22.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southerly 15 to 25 knots, reaching up to 30 knots south of Point Perpendicular early in the morning. Winds turning southeasterly 15 to 20 knots in the late morning.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres during the morning.
1st Swell
South to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon, then tending southerly around 1 metre by early evening.
Weather
Partly cloudy. 90% chance of showers. The chance of a thunderstorm this morning.
Weather Situation
A low pressure system lies offshore bringing fresh to strong south to southwesterly winds to the southern part of the coast. Winds will become moderate and tend easterly from Wednesday as the low moves to the east and a broad ridge forms over NSW. The ridge strengthens on Thursday bringing east to northeasterly winds.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Jervis Bay Harbour Temperature Statistics View More

April Temperature

Point Perpendicular (9km)

  • Lowest 6 April, 2025

    13.4 °C

  • Average April

    19.5 °C

  • Highest 19 April, 2025

    29.2 °C

Climate (2020–Present)

Point Perpendicular (9km)

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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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