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River Ray (Oxfordshire) water level at Grendon Underwood today

How high is the River Ray (Oxfordshire) at Grendon Underwood today?

The River Ray (Oxfordshire) at Grendon Underwood read 0.073 m at .

Level now

0.073 m

Provisional

Where the water stands

That is within the typical range of 0.008 m to 0.939 m that the Environment Agency gives for this station.

0.073 mTypical range0.008 m to 0.939 mHighest 0.887 mLowest -0.234 m
The newest reading against the official levels and our records near it.
Table: where the water stands
LevelValue
Newest reading0.073 m,
Typical range0.008 m to 0.939 m
Highest in our series0.887 m
Lowest in our series-0.234 m
Past day
-0.018 m
Past week
+0.048 m

The gauge reads the height of the water above a fixed zero, not the depth of the river.

The last 12 months, week by week

The last 12 months, week by week -0.2 m 0.0 m 0.2 m 0.4 m Lowest -0.234 m 0.065 m
  • Level
  • Our record
Weekly averages of the River Ray (Oxfordshire) at Grendon Underwood from 20 October 2025 to 25 October 2026. The newest value is provisional.
Table: The last 12 months, week by week
Week startingWeekly average (m)
no value
0.031 m
0.026 m
0.103 m
0.090 m
0.121 m
0.158 m
0.184 m
0.296 m
0.123 m
0.072 m
0.161 m
0.367 m
0.268 m
0.221 m
0.349 m
0.310 m
0.268 m
0.143 m
0.100 m
0.109 m
0.078 m
0.054 m
0.048 m
0.042 m
0.044 m
0.032 m
0.030 m
0.032 m
0.033 m
0.034 m
0.024 m
0.058 m
0.047 m
0.031 m
0.021 m
-0.011 m
-0.020 m
-0.067 m
-0.092 m
-0.128 m
-0.166 m
-0.194 m
-0.223 m
-0.227 m
-0.220 m
-0.119 m
0.025 m
0.028 m
0.032 m
0.032 m
0.032 m
0.065 m

Official levels

  • Typical range, low: 0.008 m. The newest reading is 0.065 m above it.Published by This uses Environment Agency flood and river level data from the real-time data API (Beta).
  • Typical range, high: 0.939 m. The newest reading is 0.866 m below it.Published by This uses Environment Agency flood and river level data from the real-time data API (Beta).

Records

  • Highest reading in our series since 2 October 2025: 1.42 m at 01:15 GMT on 16 January 2026. Provisional data.
  • Lowest reading in our series since 2 October 2025: -0.234 m at 07:15 BST on 28 August 2026. Provisional data.
  • Highest daily average in our series since 2 October 2025: 0.887 m on 16 January 2026. Provisional data.
  • Lowest daily average in our series since 2 October 2025: -0.234 m on 28 August 2026. Provisional data.

As the source publishes them

  • Lowest on record: -0.211 m, on 16 November 1990.Published by This uses Environment Agency flood and river level data from the real-time data API (Beta).
  • Highest in recent years: 1.858 m, on 3 June 2008.Published by This uses Environment Agency flood and river level data from the real-time data API (Beta).
  • Highest on record: 1.86 m, on 3 June 2008.Published by This uses Environment Agency flood and river level data from the real-time data API (Beta).

Our series holds a lower value (-0.234 m) than the record the Environment Agency publishes (-0.211 m); the published value may come from another period or may not be updated yet.

Also on this water

About this gauge

Grendon Underwood is a gauge on the River Ray (Oxfordshire) in the United Kingdom.

It lies at 51.8845° N, 1.0129° W.

Its readings come from the Environment Agency.

The Environment Agency says its real-time data should not be relied upon for safety critical applications.

The newest reading is provisional: the source may still correct it.

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Sources