Perth FAD1 (offshore) Weather Forecast
- 15
- 16
Shower
- 15
- 17
Shower
- 14
- 17
Partly cloudy
- 14
- 17
Sunny
- 15
- 18
Sunny
- 16
- 18
Partly cloudy
- 16
- 19
Sunny
Today 27 Aug Perth
Partly cloudy. Very high chance of showers, most likely in the afternoon and evening. Light winds becoming west to northwesterly 15 to 20 km/h in the early afternoon then becoming light in the evening.
Perth Coastal Waters
Two Rocks to Dawesville, offshore from Rottnest Island- Wind
- West to southwesterly 15 to 25 knots tending south to southwesterly 10 to 15 knots in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Southwesterly 2 to 3 metres, decreasing to 2 metres during the afternoon.
- Weather
- Partly cloudy. 90% chance of showers. The chance of a thunderstorm in the afternoon.
- Weather Situation
- A cold air mass over southwest WA will gradually weaken over the next few days. A series of weak troughs will maintain showers across the South West Land Division until Thursday. A new ridge strengthening over southern WA from Thursday will become the dominant weather pattern until next week.
Perth FAD1 (offshore) Temperature Statistics View More
August Temperature
Rottnest Island (55km)
Lowest 26 August, 2025
7.6 °CAverage August
15.2 °CHighest 13 August, 2025
22.4 °C
Climate (2020–Present)
Rottnest Island (55km)
Average Low 2020–2025
16.1 °CAverage 2020–2025
19 °CAverage High 2020–2025
22.8 °C