Perth FAD4 (offshore) Weather Forecast
- 16
- 21
Shower
- 19
- 20
Shower
- 15
- 17
Shower
- 16
- 17
Shower
- 16
- 18
Shower
- 17
- 18
Shower
- 17
- 18
Shower
Today 11 Jul Lower West
Mostly sunny. Areas of frost inland early this morning. Medium chance of showers in the south, slight chance elsewhere. Winds north to northeasterly 15 to 20 km/h tending north to northwesterly 15 to 25 km/h in the late morning and early afternoon. Daytime maximum temperatures between 17 and 20.
Perth Coastal Waters
Two Rocks to Dawesville, offshore from Rottnest Island- Wind
- Northerly 15 to 20 knots turning northwesterly 20 to 25 knots during the morning and early afternoon.
- Seas
- Around 1 metre, increasing to 1.5 to 2 metres during the morning.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 3 to 4 metres during the afternoon.
- Weather
- Partly cloudy. 70% chance of showers.
- Weather Situation
- A high pressure system over southern WA will move into central Australia today. A moderate cold front will bring very windy conditions to the southwest and southern coastal waters today and Saturday. A new ridge will extend over southwest WA on Sunday, followed by a weak cold front brushing past the south coast on Monday.
Perth FAD4 (offshore) Temperature Statistics View More
July Temperature
Rottnest Island (43km)
Lowest 8 July, 2025
11.2 °CAverage July
15.9 °CHighest 6 July, 2025
21.7 °C
Climate (2020–Present)
Rottnest Island (43km)
Average Low 2020–2025
16.1 °CAverage 2020–2025
19 °CAverage High 2020–2025
22.8 °C