Swan River - Pier 21 Marina Weather Forecast
- 19
- 29
Sunny
- 17
- 26
Becoming windy. Mostly sunny
- 14
- 28
Sunny
- 17
- 30
Sunny
- 19
- 33
Sunny
- 23
- 35
Sunny
- 22
- 30
Sunny
Today 20 Feb Perth
Sunny. Winds southwesterly 25 to 35 km/h.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- South to southwesterly 15 to 20 knots increasing to 20 to 25 knots in the late evening. Winds reaching up to 30 knots in the late evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly around 1 metre.
- Weather
- Sunny.
- Weather Situation
- A ridge is building over the southwest of the state and is directing southerly winds through local waters. The ridge will expand over southern WA during the weekend. A trough will move to the west coast on Monday from inland areas and deepen during next week.
Swan River - Pier 21 Marina Temperature Statistics View More
February Temperature
Swanbourne (8km)
Lowest 17 February, 2026
14.2 °CAverage February
23.7 °CHighest 2 February, 2026
41.1 °C
Climate (2021–Present)
Swanbourne (8km)
Average Low 2021–2026
14.5 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
24.3 °C