River Thames at Grafton Lock
The River Thames at Grafton Lock read 0.187 m at .
- Newest reading
- 0.187 mProvisional
- Change
- +0.01 m in a day
- +0.016 m in a week
That is within the typical range of 0 m to 0.38 m that the Environment Agency gives for this station.
The last 90 days
- Level
- Our record
Table: The last 90 days
| Day | Daily average (m) |
|---|---|
| no value | |
| no value | |
| no value | |
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| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| no value | |
| 0.192 m | |
| 0.187 m | |
| 0.186 m | |
| 0.179 m | |
| 0.180 m | |
| 0.185 m | |
| 0.212 m | |
| 0.192 m | |
| 0.176 m | |
| 0.174 m | |
| 0.175 m | |
| 0.181 m | |
| 0.175 m | |
| 0.171 m | |
| 0.167 m | |
| 0.165 m | |
| 0.161 m | |
| 0.160 m | |
| 0.162 m | |
| 0.167 m | |
| 0.165 m | |
| 0.163 m | |
| 0.161 m | |
| 0.165 m | |
| 0.171 m | |
| 0.176 m | |
| 0.177 m | |
| 0.177 m | |
| 0.186 m | |
| 0.187 m | |
| no value | |
| no value |
Normal range and official levels
- Typical range, low: 0 m. The newest reading is 0.187 m above it.Set by This uses Environment Agency flood and river level data from the real-time data API (Beta).
- Typical range, high: 0.38 m. The newest reading is 0.193 m below it.Set 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: 0.22 m at 15:00 BST on 10 September 2026. Provisional data.
- Lowest reading in our series since 2 October 2025: 0.03 m at 09:30 BST on 8 October 2025. Provisional data.
- Highest daily average in our series since 2 October 2025: 0.212 m on 10 September 2026. Provisional data.
- Lowest daily average in our series since 2 October 2025: 0.082 m on 7 October 2025. Provisional data.
As the source publishes them
- Lowest on record: -0.404 m, on 3 February 2009.Set by This uses Environment Agency flood and river level data from the real-time data API (Beta).
- Highest in recent years: 0.919 m, on 26 November 2012.Set by This uses Environment Agency flood and river level data from the real-time data API (Beta).
- Highest on record: 1.11 m, on 22 July 2007.Set by This uses Environment Agency flood and river level data from the real-time data API (Beta).
About this gauge
Grafton Lock is a gauge on the River Thames in the United Kingdom.
It lies at 51.6909° N, 1.6079° W.
Its readings come from the Environment Agency.
The gauge reads the height of the water above a fixed zero, not the depth of the river.
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.