Back Forest Weather Forecast

    • 18
    • 27

    Shower or two

    • 11
    • 18

    Cloudy

    • 13
    • 21

    Shower or two

    • 14
    • 25

    Partly cloudy

    • 13
    • 28

    Mostly sunny

    • 15
    • 30

    Becoming cloudy

    • 13
    • 23

    Possible shower

Today 21 Sep Illawarra

Partly cloudy. High chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm in the north in the afternoon and evening. Winds south to southeasterly 25 to 35 km/h. Daytime maximum temperatures 22 to 28.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southerly 20 to 25 knots, reaching up to 30 knots in the late afternoon.
Seas
1 to 1.5 metres, increasing to 2 to 2.5 metres around midday.
1st Swell
Southerly 1 to 2 metres, increasing to 2 to 3 metres during the afternoon.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea directs a northwesterly flow over much of the state, with a fresh and gusty southerly change moving across the coastal waters today, reaching the QLD border by Tuesday. A second high pressure system is forecast to slip south and enter the Tasman Sea by mid-week, turning the winds east to northeasterly.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Back Forest Temperature Statistics View More

September Temperature

Nowra (RAN Air Station) (16km)

  • Lowest 17 September, 2026

    4.9 °C

  • Average September

    15.6 °C

  • Highest 5 September, 2026

    30.4 °C

Climate (2021–2026)

Nowra (RAN Air Station) (16km)

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  • Average Low 2021–2026

    12.1 °C

  • Average 2021–2026

    16.6 °C

  • Average High 2021–2026

    22.6 °C
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