Riddoch Bay Weather Forecast

    • 8
    • 14

    Showers

    • 7
    • 15

    Showers

    • 11
    • 16

    Showers

    • 10
    • 15

    Shower or two

    • 8
    • 17

    Cloudy

    • 7
    • 16

    Partly cloudy

    • 5
    • 16

    Mostly sunny

Today 11 Jul Mount Gambier

Cloudy. Very high chance of showers. The chance of a thunderstorm, possibly severe with damaging winds. Winds northwesterly 20 to 25 km/h tending westerly in the late evening.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Westerly 25 to 30 knots, reaching up to 35 knots south of Beachport in the evening.
Seas
2.5 to 3 metres.
1st Swell
Westerly 2.5 to 3 metres, increasing to 3 to 5 metres by early evening.
Weather
Cloudy. 95% chance of showers. The chance of a thunderstorm.
Weather Situation
A cold front moving across the southeast will continue into the Tasman Sea on Sunday as a ridge of high pressure begins to build over northern SA. A second front will pass across southeastern SA on Monday before the high begins to dominate the weather pattern across SA mid next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Riddoch Bay Temperature Statistics View More

July Temperature

Mount Gambier Airport (33km)

  • Lowest 7 July, 2026

    -1.1 °C

  • Average July

    8.5 °C

  • Highest 1 July, 2026

    16.7 °C

Climate (2021–2026)

Mount Gambier Airport (33km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20.1 °C
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