Semaphore South Weather Forecast

    • 16
    • 29

    Sunny

    • 18
    • 27

    Cloud clearing

    • 15
    • 29

    Sunny

    • 17
    • 28

    Mostly sunny

    • 18
    • 27

    Partly cloudy

    • 14
    • 23

    Partly cloudy

    • 13
    • 24

    Mostly sunny

Today 21 Apr Adelaide

Sunny. Winds northeasterly 15 to 20 km/h tending north to northwesterly 15 to 25 km/h in the morning then tending northeasterly 15 to 20 km/h in the evening.

Adelaide Metropolitan Waters

Wind
East to northeasterly below 10 knots tending north to northeasterly 10 to 15 knots in the early morning.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Sunny.
Weather Situation
A strong high pressure system east of Tasmania will maintain a ridge over SA this week. A cold front is expected to weaken and slide across western and southern coasts during today and Wednesday. A second cold front may pass over the south again on Saturday with a high pressure system to follow over waters south of the Bight on Sunday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore South Temperature Statistics View More

April Temperature

Parafield Airport (14km)

  • Lowest 15 April, 2026

    7.4 °C

  • Average April

    17.2 °C

  • Highest 6 April, 2026

    28.3 °C

Climate (2021–Present)

Parafield Airport (14km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    11.2 °C

  • Average 2021–2026

    17 °C

  • Average High 2021–2026

    23.5 °C
Get WillyWeather+ to remove ads