Semaphore Weather Forecast

    • 16
    • 23

    Clear

    • 13
    • 26

    Cloud clearing

    • 17
    • 31

    Partly cloudy

    • 21
    • 29

    Shower or two

    • 16
    • 22

    Showers

    • 12
    • 18

    Showers

    • 11
    • 18

    Shower or two

Today 20 Oct Adelaide

Mostly clear. Winds west to southwesterly 15 to 20 km/h tending southeast to southwesterly in the evening then becoming light in the late evening.

Adelaide Metropolitan Waters

Wind
South to southwesterly 10 to 15 knots tending south to southeasterly in the evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Mostly clear.
Weather Situation
A trough of low pressure lingers about the east, before weakening from late Wednesday. A slow moving high pressure system in the Tasman Sea will re-establish a ridge across southern parts from Wednesday. A trough is then forecast to briefly move into the west on Thursday, before another trough and cold front move more broadly across SA on Friday and Saturday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

October Temperature

Parafield Airport (13 km)

  • Lowest 6 October, 2026

    6.6 °C

  • Average October

    17.6 °C

  • Highest 18 October, 2026

    31.3 °C

Climate (2021–2026)

Parafield Airport (13 km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    23.7 °C
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