West Island Weather Forecast

    • 13
    • 22

    Possible late shower

    • 14
    • 23

    Showers easing

    • 12
    • 22

    Cloudy

    • 13
    • 20

    Cloudy

    • 12
    • 22

    Cloudy

    • 13
    • 21

    Partly cloudy

    • 13
    • 24

    Mostly sunny

Today 20 Dec Mount Lofty Ranges

Mostly sunny day. Slight chance of a shower later tonight. Winds south to southeasterly 15 to 25 km/h tending east to southeasterly 15 to 20 km/h in the late evening. Daytime maximum temperatures 22 to 30.

South Central Coastal Waters

Wind
South to southeasterly 10 to 15 knots tending east to southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres, decreasing to 1 to 1.5 metres during the afternoon, then decreasing to around 1 metre later in the evening.
Weather
Cloudy. The chance of a thunderstorm west of Kangaroo Island later tonight.
Weather Situation
A broad trough of low pressure lies over east and northern parts of the State. This area of low pressure is expected to linger over the northeast today before moving east Sunday with the next low pressure system that develops south of the bight. A high pressure ridge then extends over the west and south during Sunday, and throughout by Monday. A persistent high pressure ridge remains over the State and Coastal Waters during Tuesday and Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

West Island Temperature Statistics View More

December Temperature

Encounter Bay (6km)

  • Lowest 3 December, 2025

    6.9 °C

  • Average December

    18.7 °C

  • Highest 18 December, 2025

    40.7 °C

Climate (2020–Present)

Encounter Bay (6km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    10.4 °C

  • Average 2020–2025

    15.1 °C

  • Average High 2020–2025

    20.6 °C
Get WillyWeather+ to remove ads