Upper Swan Weather Forecast
- 9
- 25
Sunny
- 10
- 22
Mostly sunny
- 9
- 22
Shower or two
- 8
- 22
Partly cloudy
- 10
- 20
Shower or two
- 9
- 17
Shower or two
- 10
- 18
Shower or two
Today 21 Sep Perth
Mostly sunny. Light winds becoming west to southwesterly 15 to 25 km/h in the early afternoon then turning southerly 15 to 20 km/h in the late afternoon.
Upper Swan Temperature Statistics View More
September Temperature
Pearce RAAF Base (11km)
Lowest 2 September, 2026
6.2 °CAverage September
16.7 °CHighest 17 September, 2026
31.2 °C
Climate (2021–2026)
Pearce RAAF Base (11km)
Average Low 2021–2026
13 °CAverage 2021–2026
19.2 °CAverage High 2021–2026
26.7 °C