Thompson Beach Weather Forecast

    • 20
    • 36

    Clear

    • 23
    • 38

    Windy

    • 21
    • 27

    Windy

    • 15
    • 22

    Windy

    • 12
    • 25

    Windy

    • 12
    • 30

    Sunny

    • 14
    • 28

    Sunny

Today 29 Jan Mid North

Clear. Winds south to southeasterly 20 to 30 km/h.

Gulf St Vincent Coastal Waters

Wind
South to southeasterly 15 to 20 knots, reaching up to 25 knots inshore.
Seas
1.5 to 2 metres.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Clear.
Weather Situation
A low pressure trough lingering over northern parts of SA gradually moves east during Friday, as a high pressure system moves into the Tasman Sea. A stronger high pressure system moves into the Bight from the west on Saturday, pushing the trough out to the far northeast, with a south to southeasterly flow developing across the entire state by Sunday. The high continues to move eastwards, maintaining a ridge over southern parts, as the trough begins to develop in the north again.
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  • Temperature Forecast Bureau of Meteorology

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Thompson Beach Temperature Statistics View More

January Temperature

Roseworthy (35km)

  • Lowest 1 January, 2026

    6.6 °C

  • Average January

    24.5 °C

  • Highest 8 January, 2026

    47.1 °C

Climate (2021–Present)

Roseworthy (35km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    16.2 °C

  • Average High 2021–2026

    23.6 °C
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