Semaphore Weather Forecast

    • 17
    • 27

    Cloud clearing

    • 14
    • 23

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 11
    • 29

    Sunny

    • 18
    • 35

    Sunny

    • 20
    • 38

    Sunny

    • 23
    • 34

    Mostly sunny

Today 13 Dec Adelaide

The chance of a thunderstorm this morning. Sunny afternoon. Winds southeasterly 15 to 25 km/h turning south to southwesterly 25 to 35 km/h in the morning.

Adelaide Metropolitan Waters

Wind
South to southwesterly 15 to 25 knots.
Seas
1 to 1.5 metres, increasing to 1 to 2 metres around midday.
1st Swell
Westerly below 0.5 metres.
Weather
The chance of a thunderstorm this morning. Sunny afternoon.
Weather Situation
A slow moving broad high pressure system in the Indian Ocean will build a ridge across coastal waters on today and establish itself south of the Bight on Sunday and Monday. The high is forecast to move east into the Tasman Sea on Tuesday while maintaining a ridge over coastal waters.
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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

    21.3 °C

  • Highest 4 December, 2025

    36.4 °C

Climate (2020–Present)

Parafield Airport (13km)

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  • Average Low 2020–2025

    11.1 °C

  • Average 2020–2025

    17 °C

  • Average High 2020–2025

    23.4 °C
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