Semaphore Weather Forecast

    • 10
    • 21

    Showers

    • 12
    • 17

    Showers easing. Windy

    • 10
    • 17

    Partly cloudy

    • 9
    • 18

    Partly cloudy

    • 7
    • 18

    Partly cloudy

    • 10
    • 16

    Partly cloudy

    • 7
    • 19

    Sunny

Today 4 Sep Adelaide

Partly cloudy. High chance of showers. The chance of a thunderstorm. Winds north to northeasterly 15 to 25 km/h tending north to northwesterly 20 to 30 km/h in the evening.

Adelaide Metropolitan Waters

Wind
North to northeasterly 10 to 15 knots tending north to northwesterly during the afternoon and evening. Winds reaching up to 20 knots south of Port Noarlunga in the evening.
Seas
Around 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm.
Weather Situation
A trough lies near the western border ahead of a cold front moving across the Bight, while a weak ridge of high pressure lies across central Australia. The front and trough will move across SA overnight and into southeastern Australia on Saturday, with a ridge of high pressure developing across SA in its wake. A trough is expected to develop near the western border on Sunday and remain near stationary nearly next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

September Temperature

Parafield Airport (13km)

  • Lowest 2 September, 2026

    9.9 °C

  • Average September

    14.1 °C

  • Highest 1 September, 2026

    22 °C

Climate (2021–2026)

Parafield Airport (13km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    23.6 °C
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