Cape Thomas Weather Forecast

    • 8
    • 18

    Clear

    • 14
    • 19

    Sunny

    • 13
    • 19

    Possible shower. Windy

    • 10
    • 14

    Partly cloudy

    • 6
    • 17

    Mostly sunny

    • 8
    • 19

    Partly cloudy

    • 11
    • 20

    Possible shower

Today 18 Sep Lower South East

Clear. Winds northwesterly 20 to 30 km/h.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Northwesterly 15 to 20 knots, reaching up to 25 knots south of Port MacDonnell during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres south of Beachport.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Clear.
Weather Situation
A high pressure system centred over NSW will extend a ridge westwards over SA during Friday and Saturday. A cold front will approach from the west late Saturday then move across SA on Sunday. Another high pressure system will move eastwards across waters to the south during Monday then over Victoria on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Thomas Temperature Statistics View More

September Temperature

Robe (10km)

  • Lowest 17 September, 2026

    3.7 °C

  • Average September

    14.1 °C

  • Highest 11 September, 2026

    20.1 °C

Climate (2021–2026)

Robe (10km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    16 °C

  • Average High 2021–2026

    18.5 °C
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