Semaphore Weather Forecast

    • 10
    • 15

    Showers

    • 8
    • 14

    Shower or two

    • 5
    • 14

    Partly cloudy

    • 6
    • 15

    Cloudy

    • 6
    • 15

    Mostly sunny

    • 7
    • 15

    Partly cloudy

    • 7
    • 15

    Partly cloudy

Today 28 Jul Adelaide

Cloudy. High chance of showers, becoming less likely later tonight. Winds westerly 25 to 35 km/h turning southwesterly 20 to 30 km/h in the late afternoon.

Adelaide Metropolitan Waters

Wind
Westerly 15 to 20 knots, reaching up to 25 knots south of Port Noarlunga in the late afternoon. Winds tending southwesterly in the late afternoon.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres south of Port Noarlunga.
1st Swell
West to southwesterly below 1 metre.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A cold front will clip the far southeast on Tuesday evening, before moving out to the east overnight. A high pressure system will then move over the Bight on Wednesday, and will extend a ridge across the state as it slowly moves east into NSW by Saturday. Another cold front is then forecast to cross the state from Saturday evening into Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

July Temperature

Parafield Airport (13km)

  • Lowest 17 July, 2026

    0.1 °C

  • Average July

    10.9 °C

  • Highest 18 July, 2026

    18.9 °C

Climate (2021–2026)

Parafield Airport (13km)

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  • Average Low 2021–2026

    11.2 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    23.6 °C
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