Seal Island Weather Forecast

    • 8
    • 15

    Showers

    • 6
    • 14

    Shower or two

    • 3
    • 15

    Partly cloudy

    • 7
    • 16

    Possible shower

    • 7
    • 16

    Partly cloudy

    • 7
    • 15

    Cloudy

    • 5
    • 16

    Sunny

Today 20 Jun Mount Lofty Ranges

Partly cloudy. High chance of showers, becoming less likely this afternoon. Winds south to southeasterly 15 to 25 km/h becoming light in the late afternoon. Daytime maximum temperatures between 11 and 14.

South Central Coastal Waters

Wind
Southerly 15 to 20 knots.
Seas
1.5 to 2 metres, decreasing to 1 to 1.5 metres around midday.
1st Swell
Southerly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Weather
Partly cloudy. 80% chance of showers.
Weather Situation
A high pressure system will become established over the Bight during today before moving slowly eastwards during Sunday and Monday. A low pressure trough will move across southern coastal districts on Tuesday then another high will move across waters to the south.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

June Temperature

Encounter Bay (4km)

  • Lowest 11 June, 2026

    3.7 °C

  • Average June

    13.1 °C

  • Highest 12 June, 2026

    23.5 °C

Climate (2021–2026)

Encounter Bay (4km)

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  • Average Low 2021–2026

    10.5 °C

  • Average 2021–2026

    15.3 °C

  • Average High 2021–2026

    20.7 °C
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