Thompson Beach Weather Forecast

    • 14
    • 23

    Windy

    • 13
    • 22

    Windy

    • 10
    • 29

    Sunny

    • 16
    • 36

    Sunny

    • 19
    • 39

    Sunny

    • 21
    • 35

    Partly cloudy

    • 17
    • 30

    Partly cloudy

Today 14 Dec Mid North

Clear. Winds southwesterly 25 to 40 km/h turning southerly 20 to 30 km/h in the evening.

Gulf St Vincent Coastal Waters

Wind
Southerly 15 to 20 knots, reaching up to 25 knots north of Port Vincent to Brighton during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres north of Port Vincent to Brighton.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system in the Bight, maintains a ridge over SA as it slowly moves eastwards and out to the Tasman Sea by Wednesday. A trough of low pressure forecast to drift into the far northeast of SA late Wednesday, slowing moving south during Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thompson Beach Temperature Statistics View More

December Temperature

Roseworthy (35km)

  • Lowest 7 December, 2025

    4.4 °C

  • Average December

    21.3 °C

  • Highest 4 December, 2025

    39.3 °C

Climate (2020–Present)

Roseworthy (35km)

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  • Average Low 2020–2025

    9.7 °C

  • Average 2020–2025

    16.2 °C

  • Average High 2020–2025

    23.6 °C
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