Semaphore Weather Forecast

    • 8
    • 17

    Partly cloudy

    • 10
    • 15

    Showers

    • 8
    • 14

    Shower or two

    • 6
    • 13

    Cloudy

    • 5
    • 14

    Cloudy

    • 6
    • 16

    Partly cloudy

    • 7
    • 17

    Possible shower

Today 27 Jul Adelaide

Partly cloudy. Slight chance of a shower. Winds north to northeasterly 15 to 20 km/h tending north to northwesterly 25 to 35 km/h during the morning.

Adelaide Metropolitan Waters

Wind
North to northeasterly 10 to 15 knots tending north to northwesterly 15 to 20 knots during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres around midday.
1st Swell
West to southwesterly below 1 metre.
Weather
Mostly sunny.
Weather Situation
A high pressure system centred over New South Wales will drift east over the Tasman Sea today allowing a cold front to move across the Bight. The front is forecast to continue to move east across southern South Australia on Tuesday, followed by a new high pressure system moving into the Bight on Wednesday. This new high is expected to move slowly east to be over Victoria later this week.
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)

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

  • Average Low 2021–2026

    11.2 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    23.6 °C
Get WillyWeather+ to remove ads