Rottnest Island Weather Forecast
- 18
- 24
Mostly sunny
- 17
- 23
Sunny
- 18
- 23
Mostly sunny
- 16
- 21
Shower or two. Windy
- 15
- 20
Possible shower
- 14
- 20
Partly cloudy
- 14
- 21
Cloud clearing
Today 20 Nov Lower West
Mostly sunny. Slight chance of a shower. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding. Winds south to southeasterly 15 to 25 km/h tending east to southeasterly 15 to 20 km/h during the afternoon and evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- South to southwesterly 10 to 15 knots turning southeasterly in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly below 1 metre.
- Weather
- Mostly sunny. The chance of a thunderstorm.
- Weather Situation
- A trough will remain over the area for the next few days, moving inland later Saturday ahead of a high pressure ridge moving pushing in from the west.
Rottnest Island Temperature Statistics View More
November Temperature
Rottnest Island (3km)
Lowest 2 November, 2025
11.9 °CAverage November
19.2 °CHighest 11 November, 2025
31.5 °C
Climate (2020–Present)
Rottnest Island (3km)
Average Low 2020–2025
16 °CAverage 2020–2025
18.9 °CAverage High 2020–2025
22.8 °C