Althorpe Island Weather Forecast

    • 14
    • 23

    Shower or two developing

    • 15
    • 20

    Windy. Partly cloudy

    • 12
    • 19

    Partly cloudy

    • 13
    • 22

    Sunny

    • 15
    • 22

    Partly cloudy

    • 14
    • 22

    Partly cloudy

    • 14
    • 24

    Mostly sunny

Today 5 Dec Yorke Peninsula

Partly cloudy. Medium chance of showers in the south, slight chance elsewhere. The chance of a thunderstorm in the south this evening. Winds south to southeasterly 15 to 20 km/h turning west to southwesterly 15 to 25 km/h in the morning then tending southeast to southwesterly 20 to 30 km/h in the evening. Daytime maximum temperatures 27 to 33.

Central Coastal Waters

Wind
Variable about 10 knots becoming southwesterly 10 to 15 knots in the early afternoon then becoming variable below 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Southwesterly 2.5 to 3 metres.
Weather
Partly cloudy. 70% chance of showers. The chance of a thunderstorm during this afternoon and evening.
Weather Situation
A low pressure trough will linger over the northeast and far north today as a ridge of high pressure builds over the south. The trough will clear to the northeast of SA late Saturday. A weak cold front will move across the southern coastal districts on Saturday as the high centre becomes established over the western Bight. The high will move slowly eastwards on Sunday and early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Althorpe Island Temperature Statistics View More

December Temperature

Stenhouse Bay (12km)

  • Lowest 3 December, 2025

    9.1 °C

  • Average December

    18.7 °C

  • Highest 3 December, 2025

    33.4 °C

Climate (2020–Present)

Stenhouse Bay (12km)

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  • Average Low 2020–2025

    13.1 °C

  • Average 2020–2025

    16 °C

  • Average High 2020–2025

    20.4 °C
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