Tools

Bathing water quality explainer

Find the official bathing-water source for your UK nation and understand classifications, current warnings and monitoring gaps.

Select your nation and whether your spot is designated to find the next official checks. This explainer does not fetch live results or give a water-quality verdict.

Reading the information

Classification labels include Excellent, Good, Sufficient and Poor. They summarise monitoring over a longer period; they are not a measurement of the water at the moment you arrive. Read the profile, current warnings, the dates of sample results and signs on site separately. Monitoring seasons and the availability of forecasts differ between nations and sites.

Official sources, with or without JavaScript

• England: Environment Agency Swimfo profiles and the GOV.UK bathing waters collection.
• Scotland: SEPA bathing waters.
• Wales: Natural Resources Wales.
• Northern Ireland: DAERA bathing water quality.

When a spot is not designated

Do not assume it is covered by the bathing-water monitoring programme. Ask the local authority or landowner about available information, access and warnings. A missing warning or an inactive storm overflow does not establish suitability. Stay out when there are algae or warning signs and avoid swimming after heavy rain or near outfalls.

Worked example

Choosing Scotland and “Yes” points to SEPA and explains the difference between classification, current advice and seasonal monitoring. Choosing “No” instead asks you to check local information rather than assume routine coverage. Neither result approves a swim.

Read the safety guidance before planning any swim. If you think someone has hypothermia, the NHS says to call 999 or go to A&E.