Green Island Weather Forecast
- 11
- 20
Clear
- 13
- 20
Partly cloudy
- 11
- 21
Sunny
- 13
- 21
Partly cloudy
- 15
- 21
Sunny
- 16
- 20
Showers easing
- 15
- 20
Showers
Today 7 Sep Lower West
Clear. Winds southeasterly 15 to 20 km/h.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Southerly 15 to 20 knots tending southeasterly in the evening.
- Seas
- Around 1 metre.
- 1st Swell
- Southwesterly 1.5 to 2.5 metres.
- Weather
- Clear.
- Weather Situation
- A high in the Bight is directing southeasterly winds across the Local Waters. Winds tending easterly on Wednesday as the high starts to move away, with a trough developing near the west coast on Thursday. A cold front will approach Local Waters on Friday evening.
Green Island Temperature Statistics View More
September Temperature
Rottnest Island (1km)
Lowest 1 September, 2026
12.5 °CAverage September
15.2 °CHighest 4 September, 2026
19 °C
Climate (2021–2026)
Rottnest Island (1km)
Average Low 2021–2026
16.1 °CAverage 2021–2026
18.9 °CAverage High 2021–2026
22.8 °C