Think climate change. Be waterwise

Picture of one of our two desalination plants

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.

Hand catching droplet of water

We're here for you

Our thoughts are with everyone affected by the Wooroloo bushfire. We’re here to help impacted customers, learn about our relief options.

Relief options
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


19 Apr 2021, AWST 09:00 | Incident Update

Ex-Tropical Cyclone Seroja – important information about water and wastewater services

Updates from Water Corporation following Tropical Cyclone Seroja.

  • Community
  • Service alert
  • Wastewater
10 May 2021 | Media Release

Autumn rainfall encourages early sprinkler switch-off across Perth and Peel

Water Minister Dave Kelly said widespread rain, which drenched large parts of the State last week, should encourage Western Australians to switch off their sprinklers now.

  • Bores
  • Watering
  • Waterwise
10 May 2021 | Media Release

Additional wastewater testing in response to recent community cases in Perth and new online dashboard launched

Western Australia's COVID-19 wastewater surveillance program has responded to the recently reported community cases of COVID-19 in Perth with additional sampling in locations in metropolitan Perth.

  • Community
  • COVID-19
  • Wastewater

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