Blue Bay Weather Forecast
- 15
- 18
Partly cloudy
- 13
- 18
Showers
- 12
- 19
Possible early shower
- 9
- 20
Mostly sunny
- 11
- 21
Mostly sunny
- 12
- 22
Partly cloudy
- 13
- 22
Mostly sunny
Today 4 Sep Mandurah
Cloudy. Slight chance of a shower. Winds southwesterly 25 to 35 km/h decreasing to 15 to 20 km/h in the late afternoon then becoming light in the evening.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Southwesterly 15 to 25 knots decreasing to 10 to 15 knots in the middle of the day then becoming westerly below 10 knots in the late evening.
- Seas
- 1 to 2 metres, decreasing below 1 metre during the afternoon.
- 1st Swell
- West to southwesterly 2.5 to 4 metres.
- Weather
- Partly cloudy.
- Weather Situation
- A moderate cold front will cross the local waters this morning. A stronger cold front will cross the west coast on Saturday night. A new ridge will develop to the south from Sunday and will bring southeasterly change.
Blue Bay Temperature Statistics View More
September Temperature
Mandurah (1km)
Lowest 1 September, 2026
10.4 °CAverage September
14.5 °CHighest 2 September, 2026
17.2 °C
Climate (2021–2026)
Mandurah (1km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
19.1 °CAverage High 2021–2026
23.8 °C