Cape Willoughby Weather Forecast

    • 15
    • 19

    Cloudy

    • 15
    • 30

    Sunny

    • 21
    • 34

    Partly cloudy

    • 16
    • 21

    Partly cloudy

    • 16
    • 31

    Sunny

    • 20
    • 31

    Partly cloudy

    • 17
    • 20

    Windy

Today 22 Jan Kangaroo Island

Cloud clearing. Winds southeasterly 25 to 35 km/h. Daytime maximum temperatures in the low 20s.

South Central Coastal Waters

Wind
Southeasterly 15 to 20 knots increasing to 25 knots before turning easterly 15 to 20 knots during the day.
Seas
1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then increasing to 1 to 2 metres by early evening.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
Weather
Cloud clearing.
Weather Situation
A high pressure system south of WA maintains a ridge over western and southern SA, before it is expected to move eastwards today to be over the Tasman Sea on Friday. A trough of low pressure approaches from the west on Friday, forecast to move over SA during Saturday, reaching the northeast by early Sunday. Another high pressure system is expected to move over waters to the south over the weekend.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Willoughby Temperature Statistics View More

January Temperature

Cape Willoughby (0km)

  • Lowest 1 January, 2026

    13.7 °C

  • Average January

    17.9 °C

  • Highest 7 January, 2026

    36.5 °C

Climate (2021–Present)

Cape Willoughby (0km)

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  • Average Low 2021–2026

    13.3 °C

  • Average 2021–2026

    15.4 °C

  • Average High 2021–2026

    18.4 °C
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