Seal Island Weather Forecast

    • 4
    • 19

    Partly cloudy

    • 8
    • 16

    Rain

    • 11
    • 16

    Showers easing

    • 7
    • 17

    Cloudy

    • 5
    • 19

    Sunny

    • 8
    • 19

    Shower or two

    • 9
    • 17

    Shower or two

Today 23 Aug Mount Lofty Ranges

Partly cloudy. The chance of morning fog. Light winds becoming northerly 15 to 20 km/h in the morning then becoming light in the early afternoon. Daytime maximum temperatures between 15 and 19.

South Central Coastal Waters

Wind
Northerly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 3 to 4 metres, decreasing to 3 metres during the morning.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred over the eastern states continue to drift slowly east as a low pressure system and associated trough move into the far western SA later today and then moves across the state on Monday and out over the eastern states by later Tuesday. Another high moves into the west later Tuesday and over SA on Wednesday.
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

    12 °C

  • Highest 18 August, 2026

    20.3 °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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