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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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Last Level
0.148 m
⚠ 19h ago · may be out of date
24h Max
0.151 m
24h Min
0.146 m
Typical Range
0.19 - 0.68
m
Highest Recorded
0.97 m
EA official record
A 2.11 reading (15 Jun 2026) sits in our unverified raw history and is not treated as the record
🚽Sewage overflows nearby
Recent Water Levels
🌍 floodradar.co.uk
1 day
EA forecast (official)
Prediction V2
Prediction Eris
Nimbus beta
Experimental model fusing soil moisture, river flow, groundwater and catchment
character. The shaded band is its 10–90% range, widened so that about 80% of recent outcomes fall inside it.
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.
Flow Data: Daily mean flow (m³/s) to 7 Oct (3 days behind — the EA publishes each day's mean a day or two after it ends; unchecked, provisional)via EA Hydrology
None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow. Those nearby are listed below.
Nearby, connection not known
Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.
South West Water · into Atlantic Ocean,off Sennen Cove · 6.0 km away in a straight line · discharges to the sea, an estuary or tidal water
21 spills · 224 hours in 2025
Not discharging now · last
These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Explore the sewage map →
🌊 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 Daily Mean Flow
2.93 m³/s
1 Jan 2003 · daily mean, not the instantaneous peak
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
Frequently asked questions
Is the Penberth Stream at Penberth flooding today?
The current level is 0.15m, 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 12 hours of measurements by default (up to 7 days), 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 supplied by the Environment Agency gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.
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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:
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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)