Thompson Beach Weather Forecast

    • 8
    • 15

    Shower

    • 8
    • 13

    Shower

    • 5
    • 14

    Cloudy

    • 4
    • 14

    Cloudy

    • 3
    • 15

    Partly cloudy

    • 4
    • 16

    Partly cloudy

    • 5
    • 16

    Sunny

Today 28 Jul Mid North

Partly cloudy. Very high chance of showers in the west, high chance elsewhere. Winds northwesterly 15 to 25 km/h turning west to southwesterly 20 to 30 km/h in the late morning. Daytime maximum temperatures between 12 and 16.

Gulf St Vincent Coastal Waters

Wind
Northwesterly 15 to 20 knots turning west to southwesterly during the morning and early afternoon. Winds reaching up to 25 knots south of Port Vincent to Brighton in the afternoon.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre.
Weather
Cloudy. 90% chance of showers.
Weather Situation
A trough will continue to move over southeastern parts of the state today. A cold front will clip the far southeast this afternoon and evening before a high pressure system moves over the Bight from Wednesday. The high will extend a ridge across the state, as it slowly moves east into NSW by Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thompson Beach Temperature Statistics View More

July Temperature

Roseworthy (35km)

  • Lowest 24 July, 2026

    0.2 °C

  • Average July

    10 °C

  • Highest 23 July, 2026

    20.8 °C

Climate (2021–2026)

Roseworthy (35km)

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  • Average Low 2021–2026

    9.9 °C

  • Average 2021–2026

    16.4 °C

  • Average High 2021–2026

    23.7 °C
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