Semaphore Weather Forecast

    • 10
    • 15

    Shower or two clearing

    • 7
    • 15

    Partly cloudy

    • 6
    • 15

    Partly cloudy

    • 8
    • 15

    Partly cloudy

    • 8
    • 16

    Cloudy

    • 9
    • 16

    Partly cloudy

    • 8
    • 17

    Mostly sunny

Today 20 Jun Adelaide

Partly cloudy. High chance of showers, becoming less likely late this afternoon and evening. Light winds becoming south to southeasterly 15 to 20 km/h in the middle of the day then becoming light in the early afternoon.

Adelaide Metropolitan Waters

Wind
Southerly 10 to 15 knots turning southeasterly below 10 knots during the day.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 0.5 metres.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A high pressure system will become established over the Bight during today before moving slowly eastwards during Sunday and Monday. A low pressure trough will move across southern coastal districts on Tuesday then another high will move across waters to the south.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Semaphore Temperature Statistics View More

June Temperature

Parafield Airport (13km)

  • Lowest 14 June, 2026

    2.8 °C

  • Average June

    13.9 °C

  • Highest 12 June, 2026

    22.4 °C

Climate (2021–2026)

Parafield Airport (13km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    23.6 °C
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