MacDonnell Bay Weather Forecast

    • 8
    • 22

    Cloudy

    • 13
    • 19

    Cloudy

    • 9
    • 26

    Partly cloudy

    • 16
    • 22

    Shower

    • 10
    • 24

    Partly cloudy

    • 13
    • 27

    Partly cloudy

    • 16
    • 25

    Shower

Today 19 Apr Lower South East

Partly cloudy. Slight chance of a shower in the south, near zero chance elsewhere. Winds west to northwesterly 15 to 25 km/h tending west to southwesterly 15 to 20 km/h in the late afternoon then becoming light in the evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southwesterly 10 to 15 knots turning southerly in the evening.
Seas
Around 1 metre.
1st Swell
South to southeasterly 1 to 1.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred west of Tasmania extends a ridge over western Victoria. A cold front over the far west of SA will weaken as it moves eastwards over central and eastern parts this morning. The high will move eastwards to be centred southeast of Tasmania later today but will continue to extend a ridge over SA early next week. Another front will move across the south of SA late Tuesday and early Wednesday then another high will move across waters to the south during Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

MacDonnell Bay Temperature Statistics View More

April Temperature

Mount Gambier Airport (34km)

  • Lowest 18 April, 2026

    3 °C

  • Average April

    13.7 °C

  • Highest 5 April, 2026

    25.3 °C

Climate (2021–Present)

Mount Gambier Airport (34km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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