Seal Island Weather Forecast

    • 9
    • 21

    Partly cloudy

    • 11
    • 28

    Shower or two

    • 15
    • 22

    Shower or two

    • 11
    • 22

    Shower or two

    • 12
    • 26

    Shower or two

    • 12
    • 21

    Possible shower

    • 11
    • 19

    Shower or two

Today 29 Oct Mount Lofty Ranges

The chance of fog early this morning. Mostly sunny afternoon. Light winds becoming northeasterly 15 to 20 km/h in the morning then tending northeast to southeasterly in the middle of the day. Daytime maximum temperatures in the low to mid 20s.

South Central Coastal Waters

Wind
Variable about 10 knots becoming easterly 10 to 15 knots in the middle of the day. Winds reaching up to 20 knots west of Kangaroo Island in the late evening.
Seas
Below 0.5 metres, increasing to around 1 metre around midday.
1st Swell
Southwesterly 2 to 3 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system south of WA extends a ridge over southern parts of the state while a weak trough lies across central Australia near the norther border. The high will drift over the southeast today and into the Tasman Sea on Friday, allowing a trough and low pressure system to move across SA on Friday. A brief high pressure system settles over SA on Saturday before another trough and low starts to move across from WA on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Seal Island Temperature Statistics View More

October Temperature

Encounter Bay (4 km)

  • Lowest 16 October, 2026

    5.3 °C

  • Average October

    16 °C

  • Highest 22 October, 2026

    32.8 °C

Climate (2021–2026)

Encounter Bay (4 km)

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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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