Gerloff Bay Weather Forecast

    • 13
    • 22

    Shower

    • 9
    • 14

    Partly cloudy

    • 0
    • 16

    Partly cloudy

    • 4
    • 20

    Sunny

    • 10
    • 22

    Shower

    • 12
    • 21

    Shower

    • 11
    • 19

    Shower

Today 20 Sep Lower South East

Becoming cloudy. High chance of showers in the south, medium chance elsewhere. Winds northerly 25 to 35 km/h increasing to 30 to 45 km/h in the morning then shifting west to southwesterly 20 to 30 km/h in the afternoon. Daytime maximum temperatures in the low 20s.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
North to northwesterly 20 to 30 knots turning west to southwesterly in the afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
Southwesterly 2 to 3 metres, increasing to 2.5 to 4 metres south of Port MacDonnell during the afternoon.
Weather
Becoming cloudy. 50% chance of showers.
Weather Situation
A cold front will cross the west of the state this morning and will track across the east of the state during the day. Another high pressure system will move eastwards across waters to the south during Monday then over Victoria and the Tasman Sea on Tuesday. This high will extend a ridge westwards over SA ahead of a low pressure trough that is expected to move over the far west of SA during Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Gerloff Bay Temperature Statistics View More

September Temperature

Mount Gambier Airport (37km)

  • Lowest 8 September, 2026

    0.3 °C

  • Average September

    11.5 °C

  • Highest 18 September, 2026

    22.2 °C

Climate (2021–2026)

Mount Gambier Airport (37km)

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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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