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⤴Unusual rise — FloodRadar+Top 1% rise rate for this gauge.
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You'll be notified when this gauge is rising more than 0.10 m/hr — a sign of rapidly increasing water levels.
You'll be notified when a new storm-overflow (sewage) discharge starts within ~3 km of this gauge, based on the water companies' near-real-time feeds.
Get notified when recent rainfall near this gauge crosses its learnt rise trigger — an early "watch"
signal, typically hours before a rise. Experimental; not an official flood warning.
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EA/SEPA data and are best-efforts. Terms
Last Level
0.125 m
⚠ 18h ago · may be out of date
24h Max
0.134 m
24h Min
0.123 m
Typical Range
0.19 - 0.68
m
Highest Recorded
2.11 m
15 Jun 2026
Since Nov 2012
🚽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.
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
🌊 Groundwater-fedSlow and steady — fed largely by groundwater, so levels change gradually, not in sudden spikes.
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
0.71
groundwater-fed — slow & steady
Avg Annual Rainfall
1,007 mm/yr
1991–2020 · -4% since 1941–70
Urban Extent
0.4%
largely rural
Highest Recorded Flow
2.93 m³/s
1 Jan 2003
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.
Natural catchment located on the Lands End Peninsula.
More detail
The catchment
Granite Landsend intrusion with micro-granite. Upper reaches of the catchment flat plateau with a mix of moorland, bog, rough grazing, arable and daffodil agriculture. Very steep, narrow and incised in the lower catchment to the sea.
The station
A 90 degree Vee Notch thin plate weir flanked by bevelled concrete shoulders into which additional boards are set to control water levels in summer . Installed in 1993 to assess water resources on a remote, small natural catchment in response to an abstraction scheme that was never developed. Now used to indicate water resources status on the Lands End Peninsula.
How it measures flow
There is a significant drop to the downstream bed level which allows the weir to remain modular up to bankfull. The site is good for low flow estimation but can suffer from sediment encroachment behind the vee notch. The vee notch prior to July 2006 was installed back to front with unclear impact on the data. High flows are reasonable to bankfull at 0.7m. Gauged to 58% of QMed. 2 ratings cover the por. Boards-in during the summer months and Boards-out during the winter months.
Flow regime
No licenced abstractions or discharges in the catchment. Pronounced diurnal trace manifests in the data during the summer months. Boards in during the summer to back up the water and fill an on-line pond. No impact on the flow record as the pond returns water immediately upstream of the weir.
The flow record
Evidence of bypassing during 2 exceptionally high flows of 24/25 November 2012 and 1 January 2003. Flows under-estimated for these events which were above a stage of 0.9m and a flow of 5 cumecs.
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Gauging structure
Operating since
1993
Station datum
12.0 mAOD
Flow record
1993–2024 · 31 yrs · 100% complete
Hydrometric area
49
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the Penberth Stream at Penberth flooding today?
The current level is 0.13m, which is below the typical range. Flooding is very unlikely at this level.
Is the river level rising or falling at Penberth?
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 Penberth Stream at Penberth?
The typical range at this station is 0.19m to 0.68m, based on Environment Agency historical data. Levels above 0.68m 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.
Embed this gauge on your website
Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.
Preview
📮 Flood risk by postcode near this gauge
Postcodes within 5 km with properties in the Environment Agency’s rivers-and-sea flood-risk bands:
4 Mar 2015 View to upstream section
4 Mar 2015 View across V-notch weir (boards out)
17 Jan 2012 View across V-notch weir (boards in)
