Semaphore Weather Forecast
- 9
- 23
Clear
- 15
- 28
Sunny
- 18
- 24
Showers
- 13
- 20
Possible shower
- 13
- 27
Late shower or two
- 15
- 20
Showers easing
- 10
- 15
Showers
Today 7 Oct Adelaide
Clear. Winds northwest to northeasterly 15 to 20 km/h becoming light in the late afternoon then becoming easterly 15 to 20 km/h in the late evening.
Adelaide Metropolitan Waters
- Wind
- Variable about 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Clear.
- Weather Situation
- A high pressure system located near Tasmania maintains a ridge over the state as it moves east into the Tasman Sea. A trough ahead of a strong cold front is expected move over western SA on Thursday, and track east across the rest of SA on Friday. A ridge remains over northern SA on Saturday while a series of troughs and cold fronts move across the state early next week.
Semaphore Temperature Statistics View More
October Temperature
Parafield Airport (13 km)
Lowest 6 October, 2026
6.6 °CAverage October
14.7 °CHighest 1 October, 2026
23.2 °C
Climate (2021–2026)
Parafield Airport (13 km)
Average Low 2021–2026
11.3 °CAverage 2021–2026
17.1 °CAverage High 2021–2026
23.6 °C