Seal Island Weather Forecast

    • 13
    • 21

    Cloudy

    • 11
    • 17

    Showers

    • 8
    • 16

    Cloudy

    • 9
    • 23

    Partly cloudy

    • 14
    • 30

    Partly cloudy

    • 14
    • 21

    Shower or two

    • 11
    • 23

    Showers

Today 25 Sep Mount Lofty Ranges

Cloudy. Slight chance of a shower in the south, most likely later this evening. Near zero chance of rain elsewhere. Winds south to southwesterly 15 to 20 km/h becoming light in the late afternoon.

South Central Coastal Waters

Wind
Southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 to 2 metres.
Weather
Cloudy.
Weather Situation
A trough extends over central Australia. A strong high pressure system extends a ridge across southern SA this weekend and pushes the trough into northern SA. The high moves into the Tasman Sea early next week, with the trough shifting west towards the WA border.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

September Temperature

Encounter Bay (4km)

  • Lowest 18 September, 2026

    2 °C

  • Average September

    14.6 °C

  • Highest 19 September, 2026

    26.5 °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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