Semaphore Weather Forecast
- 17
- 25
Partly cloudy
- 13
- 24
Cloud clearing
- 15
- 28
Mostly sunny
- 18
- 25
Partly cloudy
- 14
- 27
Sunny
- 18
- 28
Mostly sunny
- 18
- 27
Possible shower
Today 19 Apr Adelaide
Partly cloudy. Winds west to southwesterly 15 to 20 km/h turning south to southeasterly in the late afternoon.
Adelaide Metropolitan Waters
- Wind
- South to southwesterly 10 to 15 knots tending south to southeasterly in the evening.
- Seas
- Below 1 metre.
- 1st Swell
- West to southwesterly below 0.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system centred west of Tasmania extends a ridge over western Victoria. A cold front over the far west of SA will weaken as it moves eastwards over central and eastern parts this morning. The high will move eastwards to be centred southeast of Tasmania later today but will continue to extend a ridge over SA early next week. Another front will move across the south of SA late Tuesday and early Wednesday then another high will move across waters to the south during Wednesday.
Semaphore Temperature Statistics View More
April Temperature
Parafield Airport (13km)
Lowest 15 April, 2026
7.4 °CAverage April
17 °CHighest 6 April, 2026
28.3 °C
Climate (2021–Present)
Parafield Airport (13km)
Average Low 2021–2026
11.2 °CAverage 2021–2026
17 °CAverage High 2021–2026
23.5 °C