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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 mASD/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.
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Current Level
1.213 mASD
▬ Steady
24h Max
1.222 mASD
24h Min
1.205 mASD
Typical Range
1.10 - 2.60
mASD
Highest Recorded
7.10 mASD
4 Mar 2025
Since Feb 1996
Current level is 17% of this
Current Flow
Loading...
🚽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.
Long Term
🌍 floodradar.co.uk
—
Consecutive rainy days0 → 10+
Days Above Normal
This year vs 5-year monthly range
Recent Readings
Rising · +0.6 cm over 6h
23 Aug 23:15▬ steady1.213 mASD
23 Aug 23:00▲ +0.1 cm1.213 mASD
23 Aug 22:45▬ steady1.212 mASD
23 Aug 21:30▬ steady1.211 mASD
23 Aug 21:15▲ +0.1 cm1.211 mASD
23 Aug 21:00▼ -0.1 cm1.210 mASD
23 Aug 20:45▲ +0.1 cm1.211 mASD
23 Aug 20:30▬ steady1.210 mASD
23 Aug 20:15▲ +0.1 cm1.209 mASD
23 Aug 20:00▬ steady1.208 mASD
23 Aug 19:45▬ steady1.207 mASD
23 Aug 19:30▼ -0.1 cm1.208 mASD
23 Aug 19:15▲ +0.3 cm1.209 mASD
23 Aug 19:00▼ -0.3 cm1.206 mASD
23 Aug 18:45▲ +0.1 cm1.209 mASD
23 Aug 18:30▬ steady1.208 mASD
23 Aug 18:15▬ steady1.207 mASD
23 Aug 18:00▬ steady1.208 mASD
23 Aug 17:45▬ steady1.207 mASD
23 Aug 17:301.207 mASD
Rainfall & Weather
Loading rainfall and weather data...
Flood history near this gauge
Official Environment Agency warnings issued since 2012 for the 11 flood
areas linked to this gauge (nearest 2.2 km away).
Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record.
See also the Guildford flood history.
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
0.76
groundwater-fed — slow & steady
Avg Annual Rainfall
889 mm/yr
1991–2020 · +6% since 1941–70
Urban Extent
4.8%
partly urbanised
Highest Recorded Flow
91.50 m³/s
24 Dec 2013
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.
How this gauging station is built and how long it has measured (NRFA / UKCEH).
Gauge type
Ultrasonic
Operating since
1995
Station datum
30.4 mAOD
Flow record
1996–2024 · 28 yrs · 96% complete
Hydrometric area
39
Measured by
Environment Agency
Nearby Groundwater
Soil Moisture
Possible storm-overflow correlation
🚽 Storm overflows on this river
Frequently asked questions
Is the River Wey at Guildford flooding today?
The current level is 1.21m, which is within the typical range of 1.10 to 2.60m. Flooding is unlikely at this level.
Is the river level rising or falling at Guildford?
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 River Wey at Guildford?
The typical range at this station is 1.10m to 2.60m, based on Environment Agency historical data. Levels above 2.60m 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.
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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:
