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Current Level
6.784 m
▬ Steady
24h Max
6.786 m
24h Min
6.782 m
Typical Range
6.49 - 7.80
m
Highest Recorded
9.92 m
23 Nov 2022
Since Feb 1995
Current level is 68% of this
Current Flow
Loading...
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
Prediction V2
Prediction Eris
Nimbus beta
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. Shown with its calibrated 10–90% confidence band. Under evaluation —
not yet promoted, so treat as a second opinion.
River Flow
90 days
Daily mean discharge (m³/s) with the daily min–max band, from the EA Hydrology API. Flow is the volume of water passing the gauge — often a more direct flood signal than level.
Long Term
🌍 floodradar.co.uk
—
Consecutive rainy days0 → 10+
Days Above Normal
This year vs 5-year monthly range
Recent Readings
Steady over 6h
23 Aug 23:00▬ steady6.784 m
23 Aug 22:45▬ steady6.784 m
23 Aug 21:30▬ steady6.784 m
23 Aug 21:15▬ steady6.784 m
23 Aug 21:00▬ steady6.784 m
23 Aug 20:45▬ steady6.784 m
23 Aug 20:30▬ steady6.783 m
23 Aug 20:15▬ steady6.783 m
23 Aug 20:00▬ steady6.783 m
23 Aug 19:45▬ steady6.783 m
23 Aug 19:30▬ steady6.783 m
23 Aug 19:15▬ steady6.783 m
23 Aug 19:00▲ +0.1 cm6.783 m
23 Aug 18:45▼ -0.1 cm6.782 m
23 Aug 18:30▲ +0.1 cm6.783 m
23 Aug 18:15▼ -0.1 cm6.782 m
23 Aug 18:00▬ steady6.783 m
23 Aug 17:45▲ +0.1 cm6.783 m
23 Aug 17:30▬ steady6.782 m
23 Aug 17:156.782 m
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2011 for the 10 flood
areas linked to this gauge (nearest 0.8 km away).
Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record.
See also the islip flood history.
Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.
Catchment Character
🌊 Fairly flashyResponds fairly quickly to rain, with moderate baseflow between events.
Your catchment is all the land that drains rainfall into the river above this gauge. Its character — how
steep, wet, wooded, urban or chalky that land is — decides how fast rain here turns into a rising river. A steep, bare or clay
catchment is “flashy” (rises and falls quickly, floods easily); a flat, chalk or well-wooded one is
slow and steady. The tiles below put numbers to that; the flow-duration curve reads left-to-right
from the river’s typical high flows (Q5) down to its low flows (Q95) — a steep curve means a flashy river.
The physical character of the land that drains to this gauge, and how it shapes its flood response — from the National River Flow Archive (UKCEH).
Baseflow Index
0.49
mixed response
Avg Annual Rainfall
669 mm/yr
1991–2020 · +2% since 1941–70
Urban Extent
2.1%
largely rural
Highest Recorded Flow
21.40 m³/s
5 Jan 2024
Flow-Duration Curve
Daily flow (m³/s) exceeded each % of the time — a steep curve is flashy, a flat one is steady. Q5 high · Q50 median · Q95 low.
Land Cover (2023)
Woodland 7%Grassland 55%Arable 30%Urban 8%
Arable 40% → 30% since 1990
About this gauge
Ultrasonic gauging station located in the lower reaches of the River Ray just above the confluence of the River Cherwell.
More detail
The catchment
Relatively flat impermeable (Oxford Clay) catchment given over largely to agriculture (but includes Bicester). The station is just below Otmoor.
The station
Multi-path cross-configuration US (in two-channel section).
How it measures flow
Good hydrometric performance but very low velocities in low flow conditions.
Flow regime
Only minor disturbances to the natural (and responsive) flow regime.
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Ultrasonic
Operating since
1994
Station datum
50.0 mAOD
Flow record
1995–2024 · 29 yrs · 98% complete
Hydrometric area
39
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the River Ray at Islip flooding today?
The current level is 6.78m, which is within the typical range of 6.49 to 7.80m. Flooding is unlikely at this level.
Is the river level rising or falling at Islip?
Based on the most recent readings, the level is currently steady. The chart above shows the last 7 days of measurements, updated roughly every 15 minutes.
What is a normal level for the River Ray at Islip?
The typical range at this station is 6.49m to 7.80m, based on Environment Agency historical data. Levels above 7.80m are higher than usually seen and may indicate a flood risk.
How often is this river level data updated?
Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.
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Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
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📮 Flood risk by postcode near this gauge
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
