St Johns Weir

Sherston Avon · Malmesbury · Bristol Avon Little Avon Axe and North Somerset St

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RiverSherston AvonWatercourse named by the publisher

CatchmentBristol Avon Little Avon Axe and North Somerset StEnvironment Agency catchment context

Station ID531158Use this when checking the official source

Published location

Where is St Johns Weir?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

51.580872, -2.094819

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Map data © OpenStreetMap contributors

What this reading tells you

It is the latest value published for this monitoring instrument at the stated observation time. The unit mASD is retained from the Environment Agency measure record.

This page does not currently have an approved typical range or warning threshold for this measure, so it does not label the reading as high, normal or low.

Need a current safety answer?

A gauge reading is not a flood warning or a property-risk assessment. Use the official warning service for current alerts and follow emergency-service advice.

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Technical record and provenance

Station reference

531158

Station opened

17 Feb 2003

Latitude

51.580872

Longitude

-2.094819

Source

Environment Agency Flood Monitoring API

API retrieval

31 Aug 2026, 02:59

Raw measure identifier

http://environment.data.gov.uk/flood-monitoring/id/measures/531158-level-stage-i-15_min-mASD

Source, licence and methodology