Swan River - Pier 21 Marina Weather Forecast
- 9
- 19
Partly cloudy
- 11
- 21
Rain increasing. Windy
- 13
- 19
Showers. Very windy
- 10
- 17
Showers
- 8
- 18
Possible shower
- 7
- 19
Shower or two
- 9
- 19
Shower or two
Today 5 Jul Perth
Partly cloudy. Winds northeasterly 15 to 20 km/h tending northerly in the middle of the day.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Northerly 15 to 20 knots.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly 1 to 1.5 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system extending over southwestern parts of the State will move inland on Saturday. A cold front embedded in a vigorous westerly flow will move over the South West Land Division on Sunday afternoon and evening, ahead of another front and associated cold pool on Monday.
Swan River - Pier 21 Marina Temperature Statistics View More
July Temperature
Swanbourne (8km)
Lowest 4 July, 2025
10.4 °CAverage July
15.1 °CHighest 2 July, 2025
21.4 °C
Climate (2020–Present)
Swanbourne (8km)
Average Low 2020–2025
14.6 °CAverage 2020–2025
18.9 °CAverage High 2020–2025
24.3 °C