Think climate change. Be waterwise

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How Perth's water sources have changed over time

Climate change has dramatically affected where we get our water from. We can no longer rely on the rain to meet our water needs.

As we continue to feel the impacts of climate change, we have adapted. We are working with government, partnering with businesses and supporting the community to take action on climate changes.

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Get water supply alerts delivered to your phone or email and stay informed about outages affecting your home or business, including outage times and when your water is back on.

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Perth water supply map

Adapting our water supply to climate change

Ever wondered how climate change has affected our water supply?

Find out more

Monthly Streamflow


- GL

Year to date

Historical *

- GL

Avg year to date



- GL

Years of declining rainfall means less water flowing into your dams.

* Average monthly streamflow between 1911 - 1974


Latest updates


20 Sep 2021 | Media Release

Quinns Mindarie Surf Life Saving Club gets waterwise makeover

Quinns Mindarie Surf Life Saving Club can lay claim to being among Perth’s most waterwise sporting clubs after receiving a $4,800 Water Corporation waterwise retrofit.

  • Community
  • Leaks
  • Waterwise
10 Sep 2021 | Media Release

Perth weekly water update - 10 September 2021

Latest metro water use, dam levels, streamflow and rainfall data.

  • Climate change
  • Community
  • Dams
07 Sep 2021 | Media Release

Perth CBD’s historic water reservoir to receive $7.7 million upgrade

Perth's first water reservoir is set to receive a major upgrade as part of the McGowan Government's ongoing commitment to ensure reliable future water supply to the CBD and surrounding suburbs.

  • Community
  • History
  • Water sources

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