Semaphore Offshore Weather Forecast
- 11
- 13
Shower or two
- 11
- 13
Shower or two
- 11
- 15
Partly cloudy
- 13
- 14
Partly cloudy
- 12
- 16
Possible shower
- 14
- 16
Shower or two
- 12
- 15
Possible shower
Today 31 Aug Adelaide
Cloudy. High chance of showers. Winds northwesterly 15 to 20 km/h tending westerly in the middle of the day then becoming light in the evening.
Adelaide Metropolitan Waters
- Wind
- West to northwesterly 10 to 15 knots.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Partly cloudy. 60% chance of showers.
- Weather Situation
- A high pressure system has been moving slowly eastwards to be over South Australia from today through to Wednesday. A westerly flow will continue for coastal areas of SA on the southern flank of the high pressure system.
Semaphore Offshore Temperature Statistics View More
August Temperature
Adelaide Airport (16km)
Lowest 19 August, 2025
4.1 °CAverage August
12.4 °CHighest 11 August, 2025
21.2 °C
Climate (2020–Present)
Adelaide Airport (16km)
Average Low 2020–2025
12.2 °CAverage 2020–2025
16.8 °CAverage High 2020–2025
22 °C