Semaphore Weather Forecast
- 12
- 17
Partly cloudy
- 11
- 21
Showers
- 12
- 17
Showers. Windy
- 9
- 17
Partly cloudy
- 9
- 19
Partly cloudy
- 9
- 19
Partly cloudy
- 10
- 19
Partly cloudy
Today 3 Sep Adelaide
Partly cloudy. Slight chance of a shower. Winds west to southwesterly 15 to 20 km/h becoming light in the late afternoon.
Adelaide Metropolitan Waters
- Wind
- Variable about 10 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 1 metre.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure ridge over SA will move to the east early Friday, as a trough moves over the state during the day, followed by a strong cold front early Saturday. A high pressure system will then move across the state, behind the front, and merge with another high located to the southwest of WA on Sunday to extend a ridge across much of SA into next week. A low pressure system is also expected to move in vicinity of the WA border late Sunday and may extend a trough into far west SA into next week.
Semaphore Temperature Statistics View More
September Temperature
Parafield Airport (13km)
Lowest 2 September, 2026
9.9 °CAverage September
14.2 °CHighest 1 September, 2026
22 °C
Climate (2021–2026)
Parafield Airport (13km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
23.6 °C