Marjorie Bay Weather Forecast
- 14
- 18
Showers. Windy
- 11
- 17
Possible late shower
- 13
- 19
Showers. Very windy
- 11
- 15
Showers. Very windy
- 11
- 16
Showers. Wind easing
- 12
- 17
Showers. Windy
- 13
- 17
Showers. Wind easing
Today 18 Jul Lower West
Cloudy. High chance of showers, most likely in the morning and afternoon. Winds north to northwesterly 15 to 25 km/h turning west to southwesterly during the morning then tending southeast to southwesterly in the early afternoon. Overnight temperatures falling to between 6 and 11 with daytime temperatures reaching between 15 and 19.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Westerly 15 to 20 knots tending southwesterly in the morning then tending southeast to southwesterly in the middle of the day.
- Seas
- Below 1 metre, increasing to 1 to 2 metres during the morning.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres during the morning.
- Weather
- Cloudy. 90% chance of showers.
- Caution
- Large and powerful surf conditions are expected to be hazardous for coastal activities such as swimming, surfing and rock fishing.
Marjorie Bay Temperature Statistics View More
July Temperature
Rottnest Island (3km)
Lowest 8 July, 2025
11.2 °CAverage July
15.6 °CHighest 6 July, 2025
21.7 °C
Climate (2020–Present)
Rottnest Island (3km)
Average Low 2020–2025
16.1 °CAverage 2020–2025
19 °CAverage High 2020–2025
22.8 °C