West Island Weather Forecast

    • 14
    • 24

    Mostly clear

    • 13
    • 24

    Cloud clearing

    • 14
    • 31

    Sunny

    • 14
    • 31

    Mostly sunny

    • 21
    • 28

    Showers

    • 15
    • 21

    Partly cloudy

    • 13
    • 24

    Mostly sunny

Today 18 Feb Mount Lofty Ranges

Clear. Winds west to southwesterly 15 to 25 km/h tending south to southwesterly 15 to 20 km/h in the evening then becoming light in the late evening.

South Central Coastal Waters

Wind
Westerly 15 to 20 knots decreasing to about 10 knots in the late evening.
Seas
1 to 1.5 metres, decreasing below 1 metre later in the evening.
1st Swell
Southwesterly 3 to 4 metres.
Weather
Mostly clear.
Weather Situation
A ridge of high pressure across the south of SA will weaken during Saturday as a broad trough of low pressure extends across the west and north. The trough will move eastwards during Sunday and a cold front will move across the south. A broad area of low pressure will persist across the north early next week and a high pressure ridge will become established over waters to the south.
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  • Temperature Forecast Bureau of Meteorology

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West Island Temperature Statistics View More

February Temperature

Encounter Bay (6km)

  • Lowest 3 February, 2026

    7.1 °C
  • Average February

    19 °C
  • Highest 16 February, 2026

    35.9 °C

Climate (2021–Present)

Encounter Bay (6km)

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  • Average Low 2021–2026

    10.4 °C
  • Average 2021–2026

    15.2 °C
  • Average High 2021–2026

    20.7 °C
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