Blue Bay Weather Forecast
- 12
- 18
Mostly sunny
- 9
- 19
Showers increasing
- 13
- 17
Showers
- 11
- 15
Showers. Windy
- 9
- 16
Showers increasing
- 11
- 15
Showers
- 8
- 17
Shower or two
Today 5 Aug Mandurah
Partly cloudy. Slight chance of a shower in the morning and early afternoon. Light winds.
Perth Local Waters
Two Rocks to Dawesville, inshore from Rottnest Island- Wind
- Variable below 10 knots.
- Seas
- Below 0.5 metres.
- 1st Swell
- Southwesterly 2.5 to 3 metres, increasing to 2.5 to 4 metres during the afternoon, then decreasing to 2.5 to 3 metres by early evening.
- Weather
- Mostly sunny.
- Weather Situation
- A weak ridge over inland southern WA is moving east ahead of a cold front which will cross the southwest corner of the state on Thursday afternoon. A stronger cold front will move over the South West Land Division during Friday night and Saturday and is associated with a vigorous southwesterly airstream. A broad ridge will extend over central WA from Saturday.
Blue Bay Temperature Statistics View More
August Temperature
Mandurah (1km)
Lowest 2 August, 2026
9 °CAverage August
14.7 °CHighest 3 August, 2026
19.6 °C
Climate (2021–2026)
Mandurah (1km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
19.1 °CAverage High 2021–2026
23.8 °C