Northern Harbour Weather Forecast
- 17
- 22
Partly cloudy
- 14
- 21
Showers
- 11
- 18
Showers. Possible storm
- 11
- 20
Partly cloudy
- 11
- 21
Sunny
- 12
- 20
Mostly sunny
- 13
- 20
Possible shower
Today 18 Oct Perth
Partly cloudy. Winds westerly 25 to 35 km/h decreasing to 15 to 25 km/h in the late afternoon then becoming light in the evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Westerly 15 to 20 knots decreasing to about 10 knots in the evening.
- Seas
- 1.5 metres, decreasing to 1 metre during the afternoon.
- 1st Swell
- Westerly 2 to 3 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A cold front will move across the south of the state on Sunday, followed by a cut-off low on Monday. A ridge will develop over the area from Tuesday.
Northern Harbour Temperature Statistics View More
October Temperature
Jandakot Airport (12km)
Lowest 6 October, 2025
5.4 °CAverage October
15.6 °CHighest 2 October, 2025
27.2 °C
Climate (2020–Present)
Jandakot Airport (12km)
Average Low 2020–2025
12.6 °CAverage 2020–2025
18.6 °CAverage High 2020–2025
25.4 °C