MacDonnell Bay Weather Forecast

    • 13
    • 24

    Sunny

    • 18
    • 23

    Rain

    • 12
    • 20

    Cloudy

    • 9
    • 21

    Partly cloudy

    • 14
    • 19

    Cloudy

    • 13
    • 22

    Cloudy

    • 13
    • 25

    Partly cloudy

Today 21 Feb Lower South East

Sunny day. The chance of a thunderstorm in the evening. Light winds becoming southeast to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures 28 to 34.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
East to northeasterly about 10 knots tending east to southeasterly 10 to 15 knots in the early afternoon then tending east to northeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2 to 2.5 metres.
Weather
Partly cloudy. The chance of a thunderstorm at night.
Weather Situation
A weak ridge of high pressure across the south of SA will weaken further during Saturday as a trough and cold front cross the Bight. The trough will move across the state on Sunday before interacting with a tropical low over central Australia early next week. The low and trough are then expected to remain slow moving across northern SA next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

February Temperature

Mount Gambier Airport (34km)

  • Lowest 2 February, 2026

    4.9 °C

  • Average February

    17.6 °C

  • Highest 16 February, 2026

    37.2 °C

Climate (2021–Present)

Mount Gambier Airport (34km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.6 °C

  • Average High 2021–2026

    20 °C
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