Frequently Asked Questions
Everything you need to know about UK river levels, Environment Agency hydrology data, typical ranges, and river safety.
How often is UK river level data updated?▼
River levels (metres) and discharge flows (m³/s) are updated every 15 minutes directly from active Environment Agency (Defra) Flood Monitoring stations across England and Wales.
What do the typical normal low and high ranges mean on UK river gauges?▼
The Environment Agency defines typical ranges based on long-term historical percentiles for each gauging weir or sensor. Below the typical low indicates shallow or dry conditions, within the range indicates normal river levels, and above the typical high indicates brisk flow, bankfull conditions, or potential flood alert levels.
How does the River Activity Score work for UK waterways?▼
Our River Activity Engine (1–10) compares instantaneous water level and streamflow against activity-specific sweet spots (Wild Swimming & Dipping, Canoe & SUP Touring, Whitewater & Packrafting, and Angling). It also factors in air chill, rainfall risk, and cold water shock thresholds.
Which UK regions are covered?▼
Riverable UK monitors real-time telemetry across England and Wales, structured into 10 regional directories: South West, South East, Greater London, East of England, West Midlands, East Midlands, Yorkshire & the Humber, North West, North East, and Wales & Welsh Borders.
What safety guidance applies to wild swimming and paddling in the UK?▼
Always check current water levels, beware of cold water shock (especially in water below 15°C), avoid swimming immediately downstream of agricultural runoff or storm overflows following heavy rain, inspect weirs and sluices carefully, and wear an appropriate buoyancy aid when paddling.
Can I embed Riverable on my angling club, kayak school, or local tourism website?▼
Yes! We offer 100% free embeddable river level and flow widgets. Visit our Widgets page to generate iframe snippets for any gauged river in the UK.