Seal Island Weather Forecast

    • 8
    • 17

    Showers increasing

    • 7
    • 16

    Showers easing

    • 8
    • 17

    Possible shower

    • 7
    • 17

    Possible shower

    • 7
    • 15

    Partly cloudy

    • 7
    • 15

    Partly cloudy

    • 6
    • 17

    Mostly sunny

Today 11 Aug Mount Lofty Ranges

Partly cloudy. Very high chance of showers, most likely in the evening. Winds northwesterly 25 to 35 km/h. Overnight temperatures falling to between 6 and 9 with daytime temperatures reaching between 13 and 16.

South Central Coastal Waters

Wind
Northwesterly 15 to 25 knots, reaching up to 30 knots during the day. Winds turning southwesterly 20 to 25 knots in the evening.
Seas
1 to 2 metres, increasing to 2 to 3 metres during the morning.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning, then increasing to 3 to 4 metres by early evening.
Weather
Cloudy. Near 100% chance of showers. The chance of a thunderstorm.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

August Temperature

Encounter Bay (4km)

  • Lowest 1 August, 2026

    0.5 °C

  • Average August

    11.3 °C

  • Highest 7 August, 2026

    19.7 °C

Climate (2021–2026)

Encounter Bay (4km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.2 °C

  • Average High 2021–2026

    20.7 °C
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