Racecourse Bay Weather Forecast

    • 9
    • 14

    Windy

    • 8
    • 15

    Partly cloudy

    • 4
    • 17

    Partly cloudy

    • 7
    • 21

    Partly cloudy

    • 12
    • 22

    Shower

    • 12
    • 21

    Shower

    • 9
    • 15

    Shower

Today 9 Sep Lower South East

Cloudy. Winds southerly 25 to 35 km/h decreasing to 15 to 20 km/h in the late afternoon then becoming south to southeasterly and light in the evening. Daytime maximum temperatures around 15.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 15 to 25 knots, reaching up to 30 knots south of Beachport early in the morning. Winds decreasing to 10 to 15 knots in the evening.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
Southwesterly 4 to 5 metres.
Weather
Cloudy.
Weather Situation
A high pressure system centred south of WA extends a ridge across the south of SA. The main high centre will move eastwards during the week to be centred to the east of SA on Friday. A trough over the interior of WA will remain stationary for most of the week and may extend into the far west of SA at times. Another low pressure trough will approach from the west on Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Racecourse Bay Temperature Statistics View More

September Temperature

Mount Gambier Airport (34km)

  • Lowest 8 September, 2026

    0.3 °C

  • Average September

    11 °C

  • Highest 1 September, 2026

    18.3 °C

Climate (2021–2026)

Mount Gambier Airport (34km)

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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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