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Home News Hydrology Summary Bulletin – May 2025

Hydrology Summary Bulletin – May 2025

Hydrology Summary Bulletin outlining the flows in rivers, rainfall, lake and turlough levels, groundwater levels and spring outflows of over 300 stations across Ireland for the month of May.

May was warm, dry and sunny with rainfall amounts low in most places.

River flows decreased at all monitoring locations in May when compared to April, with 45% of flows below the long-term normal range. Groundwater and lake levels also decreased, with 50% of groundwater, and 56% of lake levels, below the long-term normal range.

Monthly Hydrology Bulletin – May 2025

EPA-Hydrology-Bulletin-May-2025 Download

Access previous EPA monthly Hydrology Bulletins here: hydrology-bulletin | Environmental Protection Agency

About author

EPA Catchments Unit

Administrator

The EPA Catchments Unit is based in Dublin, and the team is involved with catchment science, chemistry, ecology, hydromorphology, modelling, Geographic Information Systems and planning. We work with the wider EPA, all of our local authorities, the Local Authority Waters and Communities Office, the Department of Housing, Planning and Local Government, and other public bodies and Departments to ensure we have the best available data and information about our catchments.

Who is involved?
Quite simply, everyone in Ireland has a role to play. This can be from something as simple as making sure you don’t pollute your local stream, or a local community working together to establish a Rivers Trust to enhance the rivers and lakes in their area, to a Government Department or Agency helping a Minister implement a new policy to help protect and enhance all our water bodies.

This website has been developed and is maintained by the Environmental Protection Agency, and is a collaboration between the Department of Housing, Planning and Local Government, the Environmental Protection Agency, and the Local Authority Waters Programme.

Local Authority Waters Programme

The Local Authority Waters Programme coordinates the efforts of local authorities and other public bodies in the implementation of the River Basin Management Plan, and supports local community and stakeholder involvement in managing our natural waters, for everyone’s benefit.

Environmental Protection Agency

The EPA is responsible for coordinating the monitoring, assessment and reporting on the status of our 4,842 water bodies, looking at trends and changes, determining which waterbodies are at risk and what could be causing this, and drafting environmental objectives for each.

Department of Housing, Local Government and Heritage

The Department is responsible for making sure that the right policies, regulations and resources are in place to implement the Water Framework Directive, and developing a River Basin Management Plan and Programme of Measures to protect and restore our waters.