Longs Rock Weather Forecast

    • 11
    • 15

    Windy

    • 9
    • 15

    Shower

    • 7
    • 20

    Partly cloudy

    • 9
    • 16

    Windy

    • 8
    • 14

    Shower

    • 10
    • 15

    Shower

    • 9
    • 15

    Shower

Today 16 Sep Lower South East

Partly cloudy. Very high chance of showers, most likely during the morning and afternoon. The chance of a thunderstorm during the morning and afternoon. Winds northwesterly 25 to 35 km/h turning westerly 30 to 45 km/h in the late morning. Daytime maximum temperatures around 16.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Westerly 25 to 30 knots, reaching up to 35 knots south of Port MacDonnell in the early afternoon.
Seas
2.5 to 3 metres.
1st Swell
Westerly 3 to 5 metres.
Weather
Partly cloudy. 80% chance of showers, with possible small hail south of Port MacDonnell later tonight. The chance of a thunderstorm during the morning and afternoon.
Weather Situation
A high pressure ridge will move in from the west today in the wake of a cold front moving away to the east. This high will quickly track eastwards through Wednesday with a trough sweeping across the state on Thursday. Another front will skim the south on Friday with a southwesterly airstream establishing in its wake.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Longs Rock Temperature Statistics View More

September Temperature

Mount Gambier Airport (39km)

  • Lowest 5 September, 2025

    -0.2 °C

  • Average September

    11.5 °C

  • Highest 14 September, 2025

    21.9 °C

Climate (2020–Present)

Mount Gambier Airport (39km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.7 °C

  • Average High 2020–2025

    20 °C
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