Cape Willoughby Weather Forecast

    • 17
    • 24

    Shower

    • 13
    • 19

    Shower

    • 12
    • 19

    Partly cloudy

    • 14
    • 21

    Partly cloudy

    • 15
    • 23

    Partly cloudy

    • 18
    • 24

    Sunny

    • 18
    • 24

    Partly cloudy

Today 25 Apr Kangaroo Island

Partly cloudy. Very high chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm at night. Winds northerly 20 to 30 km/h tending northwesterly 15 to 25 km/h in the middle of the day then becoming light in the evening. Daytime maximum temperatures in the low to mid 20s.

South Central Coastal Waters

Wind
West to northwesterly 10 to 15 knots tending west to southwesterly in the late evening.
Seas
Around 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Cloudy. 90% chance of showers. The chance of a thunderstorm later tonight.
Weather Situation
A strong high pressure system over the Tasman Sea will maintain a ridge over SA. A cold front over the state will weaken and clear to the east early Sunday. A new high pressure system will develop in the Bight on Sunday, drifting east early next week to merge with the strong high in the Tasman Sea.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Cape Willoughby Temperature Statistics View More

April Temperature

Cape Willoughby (0km)

  • Lowest 11 April, 2026

    10.5 °C

  • Average April

    17 °C

  • Highest 21 April, 2026

    27.2 °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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