City of York Bay Weather Forecast
- 13
- 18
Showers. Possible storm
- 12
- 17
Shower or two
- 13
- 17
Shower or two
- 12
- 19
Shower or two
- 13
- 17
Showers. Windy
- 9
- 15
Showers. Windy
- 10
- 16
Shower or two
Today 20 Aug Lower West
Cloudy. Very high chance of showers, becoming less likely in the evening. The chance of a thunderstorm in the afternoon. Winds west to northwesterly 20 to 30 km/h increasing to 35 km/h before tending west to southwesterly 15 to 25 km/h in the late morning and afternoon. Daytime maximum temperatures between 16 and 20.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Westerly 20 to 25 knots, reaching up to 30 knots in the early afternoon. Winds tending southwesterly 15 to 25 knots in the late afternoon.
- Seas
- 1.5 to 2 metres.
- 1st Swell
- West to southwesterly 2 to 3 metres, increasing to 2.5 to 4 metres during the afternoon.
- Weather
- Cloudy. 90% chance of showers. The chance of a thunderstorm in the morning and afternoon.
- Weather Situation
- Another cold front will move through today, followed by a ridge on Thursday, persisting until the weekend.
City of York Bay Temperature Statistics View More
August Temperature
Rottnest Island (1km)
Lowest 4 August, 2025
9.2 °CAverage August
15.9 °CHighest 13 August, 2025
22.4 °C
Climate (2020–Present)
Rottnest Island (1km)
Average Low 2020–2025
16.1 °CAverage 2020–2025
19 °CAverage High 2020–2025
22.8 °C