Semaphore Weather Forecast
- 11
- 17
Partly cloudy
- 11
- 18
Showers
- 10
- 20
Showers
- 12
- 17
Showers. Windy
- 10
- 18
Partly cloudy
- 10
- 19
Partly cloudy
- 10
- 20
Partly cloudy
Today 2 Sep Adelaide
Partly cloudy. Slight chance of a shower. Winds westerly 20 to 30 km/h.
Adelaide Metropolitan Waters
- Wind
- Westerly 15 to 20 knots.
- Seas
- Around 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Cloudy.
- Weather Situation
- A high pressure ridge will remain over northern parts of SA, as a cold front slips across the southeast early Thursday. The ridge will move to the east early Friday as a trough moves over SA during the day, followed by another cold front early Saturday. Another high pressure system will move across the state, behind the front, and will extend a ridge across central and eastern parts of SA into Sunday. A low pressure system is then expected to develop about the WA border and may extend a trough into far west SA late on Sunday.
Semaphore Temperature Statistics View More
September Temperature
Parafield Airport (13km)
Lowest 1 September, 2026
10.2 °CAverage September
15.3 °CHighest
–
Climate (2021–2026)
Parafield Airport (13km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
23.6 °C