Semaphore Weather Forecast
- 11
- 17
Possible morning shower
- 9
- 19
Partly cloudy
- 11
- 17
Showers
- 11
- 17
Showers
- 8
- 17
Partly cloudy
- 9
- 20
Possible shower developing
- 11
- 18
Showers
Today 22 Aug Adelaide
Partly cloudy. Medium chance of showers this morning. Winds westerly 15 to 20 km/h becoming light in the morning.
Adelaide Metropolitan Waters
- Wind
- Westerly 10 to 15 knots becoming variable below 10 knots in the morning.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system over the Bight slowly drifts over SA today, to be centred over the eastern states by Sunday. A weak front embedded in the southwesterly flow around the high, clips the southeast early Saturday morning. A low pressure system and associated trough move into the far west later Sunday and then moves across the state on Monday an d out over the eastern states by later Tuesday. Another ridge of high pressure moves into the west later Tuesday.
Semaphore Temperature Statistics View More
August Temperature
Parafield Airport (13km)
Lowest 5 August, 2026
1.3 °CAverage August
12.2 °CHighest 7 August, 2026
20.2 °C
Climate (2021–2026)
Parafield Airport (13km)
Average Low 2021–2026
11.2 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
23.6 °C