Semaphore Weather Forecast

    • 19
    • 35

    Clear

    • 22
    • 39

    Sunny

    • 23
    • 32

    Mostly sunny

    • 15
    • 28

    Partly cloudy

    • 16
    • 23

    Showers easing

    • 13
    • 24

    Sunny

    • 14
    • 24

    Partly cloudy

Today 17 Dec Adelaide

Clear. Winds west to southwesterly 15 to 20 km/h shifting east to southeasterly in the evening.

Adelaide Metropolitan Waters

Wind
Variable about 10 knots becoming southerly 10 to 15 knots in the evening then turning east to southeasterly below 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
Westerly below 0.5 metres.
Weather
Clear.
Weather Situation
A ridge of high pressure extends across most of SA this evening, as a trough of low pressure develops over the west on Thursday. This broad area of low pressure is expected to slowly move across the state from the west during Friday and Saturday, before another ridge of high pressure develops through the west and south on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

December Temperature

Parafield Airport (13km)

  • Lowest 7 December, 2025

    7.4 °C

  • Average December

    20.7 °C

  • Highest 12 December, 2025

    38.4 °C

Climate (2020–Present)

Parafield Airport (13km)

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  • Average Low 2020–2025

    11.1 °C

  • Average 2020–2025

    16.9 °C

  • Average High 2020–2025

    23.4 °C
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