Riverable🇬🇧 UK

River Ray Level & Flow Conditions

Real-time Environment Agency (Defra) river level in metres (m), discharge telemetry, water temperature, and activity suitability ratings at River Ray at Grendon Underwood, South East England.

South East England · South East|EA ID: 1471TH

River Ray

Gauging Station: River Ray at Grendon Underwood · Catchment: Cherwell Thame and Wye

EA Hydrology Model
Activity Intelligence

River Condition Score

1–10 Scale
10.0OUT OF 10Normal Range
⭐Normal Range

River level is within normal Environment Agency range.

💡River Advisory:

Prime conditions for wild swimming, canoeing, and angling.

Typical Range:0.008m – 0.939m
RIVER LEVEL (m)
0.01 m
Typical high: 0.939m
Standard BaselineSteady
NORMAL BOUNDS
0.008m
Typical Low Threshold
Defra ThresholdNormal
WATER TEMP
8°C
Dipping: Cold shock risk
Wild SwimmingWetsuit Advised
AIR & SKY
11°C
Humidity: 65%
Rain: 15%13 km/h W

Select Activity to Tune Scoring

Scoring algorithm recalibrates suitability according to water depth, stream power, and weather.

Active: Wild Swimming & Dipping
River bathing, open water swimming & dipping. Ideal in calm, normal river levels with warm sunshine and gentle currents.
Environment Agency Open Data

24-Hour River Level Trend (m)

Defra sensor readings vs. typical normal bounds

Observed Level
Typical High (0.939m)
0.939m Threshold
24 Hours Ago12 Hours AgoLive Sensor (0.01 m)

River Access & Safety Info

Environment Agency telemetry & public rights of way

Public Waterway
EA
River Ray at Grendon Underwood
Monitored gauging station • Defra Flood Monitoring Network
Active
MAP
Location & Catchment
Cherwell Thame and Wye • 51.8845°N, -1.0129°W
GPS Set
Explore Interactive Access Map & Surrounding Gauges →

Frequently Asked Questions About River Ray

What is the current river level of River Ray?

Current river level for River Ray is measured in metres (m) at Environment Agency station #1471TH (River Ray at Grendon Underwood). Telemetry is logged every 15 minutes by Defra.

Is River Ray safe for wild swimming, canoeing, or paddling today?

River conditions depend on live gauge depth and streamflow velocity. Riverable UK provides a real-time 1–10 River Activity Score tuned for wild swimming, canoeing, kayaking, and angling. Check the live status badge above before entering the water.

What is the typical normal range for River Ray?

The Environment Agency typical normal range at this station is between 0.008m and 0.939m. Levels within this window represent standard, safe conditions.

Can heavy rain in the catchment cause River Ray to rise rapidly?

Yes, catchment precipitation and surface runoff directly cause water levels to surge. Riverable UK monitors 7-day cumulative precipitation and upstream weather models to alert users to rising spate conditions.

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