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.
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Blue Bay Temperature Statistics View More

August Temperature

Mandurah (1km)

  • Lowest 2 August, 2026

    9 °C
  • Average August

    14.7 °C
  • Highest 3 August, 2026

    19.6 °C

Climate (2021–2026)

Mandurah (1km)

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  • Average Low 2021–2026

    15.1 °C
  • Average 2021–2026

    19.1 °C
  • Average High 2021–2026

    23.8 °C
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