Umpherstone Bay Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 10
    • 23

    Windy

    • 12
    • 29

    Sunny

    • 15
    • 36

    Partly cloudy

    • 15
    • 21

    Windy

    • 11
    • 17

    Shower

    • 12
    • 19

    Cloudy

Today 26 Dec Lower South East

Clear. Winds southeasterly 25 to 35 km/h.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southeasterly 15 to 20 knots, reaching up to 30 knots north of Port MacDonnell in the evening.
Seas
1 to 2 metres.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system maintains a broad ridge over most of South Australia. A low pressure trough enters western parts of the state late Saturday and continues moving east on Sunday, reaching central parts on Monday. The deepening trough moves into eastern parts of SA on Tuesday, while a new ridge builds across the west.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Umpherstone Bay Temperature Statistics View More

December Temperature

Mount Gambier Airport (34km)

  • Lowest 7 December, 2025

    4.7 °C

  • Average December

    15.7 °C

  • Highest 18 December, 2025

    38.9 °C

Climate (2020–Present)

Mount Gambier Airport (34km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    13.6 °C

  • Average High 2020–2025

    19.9 °C
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