Can I swim at Porthcothan today? Live water quality · Good Buoy

Today Forecast Map Alerts Spots Why

◉ LIVE · — BST

Information only

Good Buoy publishes indicative water-quality readings — sensor proxies, live CSO feeds and modelled plumes. It is nota substitute for the Environment Agency’s official bathing-water classifications, and it does not tell you whether to swim. Any decision to enter the water is yours alone. Check the EA bathing-water profile for the site you plan to use, consider recent rainfall and tide, and use your own judgement.

Data sources

South West Water storm-overflow live feed
Environment Agency bathing-water API
Environment Agency flood + tidal + rainfall APIs
UK Hydrographic Office Admiralty tides
Open-Meteo historical weather
OpenStreetMap coastline + rivers
GB buoy fleet (in-house sensors)

Navigate

Today
Map
Alerts
Spots
Why

The paper

Good Buoy · Plymouth Sound Edition
Reader-supported, open data
© 2026 Good Buoy

Can I swim at Porthcothan today? Live water quality · Good Buoy