Semaphore Weather Forecast

    • 10
    • 17

    Shower or two

    • 10
    • 16

    Shower or two

    • 10
    • 17

    Possible morning shower

    • 9
    • 18

    Partly cloudy

    • 10
    • 18

    Shower or two

    • 10
    • 16

    Shower or two

    • 7
    • 15

    Partly cloudy

Today 20 Aug Adelaide

Partly cloudy. High chance of showers about the southern suburbs, medium chance elsewhere. Winds northwesterly 15 to 25 km/h tending westerly in the early afternoon then becoming light in the late evening.

Adelaide Metropolitan Waters

Wind
Northwesterly 10 to 15 knots turning west to southwesterly below 10 knots during the afternoon and evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A cold front clears to the east Wednesday evening. Weak troughs clip the southeast in a broad westerly flow on Thursday and Friday, as a ridge of high pressure is expected to approach South Australia from the west. The high centre is expected to linger over the state on the weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

August Temperature

Parafield Airport (13km)

  • Lowest 5 August, 2026

    1.3 °C

  • Average August

    12.2 °C

  • Highest 7 August, 2026

    20.2 °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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