Semaphore South Weather Forecast

    • 17
    • 31

    Sunny

    • 16
    • 28

    Partly cloudy

    • 14
    • 25

    Partly cloudy

    • 13
    • 27

    Partly cloudy

    • 14
    • 29

    Partly cloudy

    • 17
    • 34

    Mostly sunny

    • 21
    • 34

    Sunny

Today 21 Jan Adelaide

Sunny. Winds southeast to southwesterly 15 to 25 km/h becoming southwesterly 20 to 30 km/h in the middle of the day then tending southerly 25 to 35 km/h in the late afternoon.

Adelaide Metropolitan Waters

Wind
Southerly 15 to 20 knots, reaching up to 30 knots north of Brighton in the late afternoon.
Seas
Around 1 metre, increasing to 1 to 2 metres during the afternoon.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Mostly sunny.
Weather Situation
A ridge of high pressure over waters to the south of the state will maintain south to southeasterly flow across South Australia this week. A stronger high pressure system will move to a position south of the Bight for the start of the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore South Temperature Statistics View More

January Temperature

Adelaide Airport (12km)

  • Lowest 7 January, 2025

    13.3 °C

  • Average January

    23.1 °C

  • Highest 19 January, 2025

    37.1 °C

Climate (2020–Present)

Adelaide Airport (12km)

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  • Average Low 2020–2025

    12.1 °C

  • Average 2020–2025

    16.6 °C

  • Average High 2020–2025

    21.7 °C
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