Semaphore Weather Forecast

    • 10
    • 22

    Sunny

    • 12
    • 25

    Sunny

    • 17
    • 24

    Mostly sunny

    • 11
    • 17

    Partly cloudy

    • 8
    • 21

    Sunny

    • 12
    • 24

    Partly cloudy

    • 15
    • 27

    Partly cloudy

Today 18 Sep Adelaide

Sunny. Winds north to northeasterly 15 to 20 km/h turning northwesterly 15 to 25 km/h during the morning then becoming light in the late afternoon.

Adelaide Metropolitan Waters

Wind
North to northeasterly 10 to 15 knots tending north to northwesterly in the middle of the day then becoming variable below 10 knots in the early afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Sunny.
Weather Situation
A strong high pressure system centred over Victoria will maintain a ridge across SA as it drifts slowly over NSW. A cold front will then approach from the west late Saturday and move across SA on Sunday, before another ridge pushes in behind the front. The associated high will then move eastwards across waters south from Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

September Temperature

Parafield Airport (13km)

  • Lowest 17 September, 2026

    3.3 °C

  • Average September

    13.6 °C

  • Highest 12 September, 2026

    24.6 °C

Climate (2021–2026)

Parafield Airport (13km)

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

  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    23.6 °C
Get WillyWeather+ to remove ads