Thompson Beach Weather Forecast

    • 5
    • 17

    Cloudy

    • 10
    • 16

    Windy

    • 5
    • 18

    Partly cloudy

    • 6
    • 21

    Sunny

    • 10
    • 24

    Partly cloudy

    • 15
    • 25

    Shower

    • 13
    • 23

    Shower

Today 8 Sep Mid North

Becoming cloudy. Light winds becoming southwesterly 15 to 20 km/h in the early afternoon then tending southerly in the evening. Daytime maximum temperatures around 18.

Gulf St Vincent Coastal Waters

Wind
Southerly about 10 knots increasing to 15 to 20 knots in the late afternoon.
Seas
Around 1 metre.
1st Swell
West to southwesterly below 0.5 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.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thompson Beach Temperature Statistics View More

September Temperature

Roseworthy (35km)

  • Lowest 7 September, 2026

    3.3 °C

  • Average September

    11.9 °C

  • Highest 1 September, 2026

    20.8 °C

Climate (2021–2026)

Roseworthy (35km)

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  • Average Low 2021–2026

    9.9 °C

  • Average 2021–2026

    16.3 °C

  • Average High 2021–2026

    23.7 °C
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