Joondalup Weather Forecast
- 14
- 21
Cloudy
- 13
- 23
Mostly sunny
- 14
- 26
Partly cloudy
- 17
- 29
Mostly sunny
- 17
- 24
Mostly sunny
- 15
- 22
Showers
- 13
- 20
Possible shower
Today 13 Sep Perth
Partly cloudy. Slight chance of a shower in the southwest, near zero chance elsewhere. Light winds becoming westerly 15 to 20 km/h in the morning then becoming light in the evening.
Joondalup Temperature Statistics View More
September Temperature
Perth Metro (21km)
Lowest 1 September, 2026
8.3 °CAverage September
16 °CHighest 11 September, 2026
27.4 °C
Climate (2021–2026)
Perth Metro (21km)
Average Low 2021–2026
13.4 °CAverage 2021–2026
18.8 °CAverage High 2021–2026
25.4 °C