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Port Isaac water level

River gauge, Coastal Stream, Cornwall, United Kingdom

Directions

Far below the normal range

Water level

0.08m Steady over the last 24 hours

0.0 0.5 1.0 Highest onrecord 1.31 m Lowest on record 0.08 m

History

0.080.090.100.11mOct 10Oct 12Oct 14Oct 15Oct 17Bottom of normal range0.080.090.100.11mOct 10Oct 14Oct 17Bottom of normal range
0.100.15mSep 17Sep 25Oct 2Oct 10Oct 17Bottom of normal range0.100.15mSep 17Oct 2Oct 17Bottom of normal range
Water level Top of normal rangeBottom of normal range

What this means

Low water at Port Isaac: the gauge reads 0.08 m, far below normal.

The usual range here runs from 0.11 m to 0.44 m. The lowest reading on record is 0.08 m (September 22, 2006).

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 0.07 m – 0.16 m.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with the normal range the agency publishes for this gauge. How to read levels

Key numbers

Normal range
0.11 m – 0.44 m
Lowest and highest in 30 days
0.07 m – 0.16 m
Highest on record
1.31 mMarch 11, 2013
Lowest on record
0.08 mSeptember 22, 2006

For anglers and canoeists

Low rivers are hard going for paddlers, with exposed gravel and weirs that are awkward to shoot. Salmon and sea trout usually wait for the next spate to run.

Many angling and canoe clubs check gauges like this one before heading out.

Weather at the gauge

Rain in the last 3 days: 6.0 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 14° 8° 0.4 mm Wind 22 km/h
18 Sun 13° 4° – Wind 16 km/h
19 Mon 11° 8° 2.7 mm, 45% Wind 18 km/h
20 Tue 14° 7° 0.6 mm, 49% Wind 13 km/h
21 Wed 12° 9° 7.1 mm, 67% Wind 50 km/h
22 Thu 13° 10° 4.9 mm, 59% Wind 26 km/h
23 Fri 14° 10° 21 mm, 86% Wind 47 km/h

Forecast: Open-Meteo

Sunrise 07:45 AM Sunset 06:25 PM Daylight 10 hr, 40 min First quarter 42%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
PenvoseRiver gauge, River Allen 0.08 m Very low −0.01 m 6.2 km
SladesbridgeRiver gauge, River Camel 0.16 m Normal ±0 9.1 km
Camelford Enfield ParkRiver gauge, River Camel 0.22 m Low −0.01 m 11 km
Bodmin DunmereRiver gauge, River Camel 0.92 m Very low −0.03 m 14 km
De LankRiver gauge, De Lank River 0.13 m Low −0.02 m 14 km
Boscastle County BridgeRiver gauge, River Valency 0.36 m Normal −0.01 m 15 km
Boscastle New MillsRiver gauge, River Valency 0.82 m Normal −0.01 m 15 km
Bodmin St Petrocs WellRiver gauge, Bodmin Town Leat 0.06 m Normal ±0 16 km

Questions and answers

What is the typical range for the Coastal Stream at Port Isaac?

The Environment Agency gives a typical range of 0.11 m to 0.44 m for this gauge.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 0.08 m on the gauge does not mean the water is that deep.

What is the water level of Port Isaac today?

On 17 Oct 2026, 17:30 BST, the water level was 0.08 m. Steady over the last 24 hours.

Is Port Isaac rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Port Isaac normal?

Far below the normal range. Compared with the normal range the agency publishes for this gauge.

What is the highest water level ever recorded at Port Isaac?

The highest level on record is 1.31 m on March 11, 2013. The lowest is 0.08 m on September 22, 2006.

How often is this data updated?

The Environment Agency publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:49170 (Agency page)
Coordinates
50.58916, -4.83023 (WGS84)
Vertical datum
station datum
Update interval
every 15 minutes
Licence
Open Government Licence v3.0. Contains Environment Agency data licensed under the Open Government Licence v3.0

Published series

ParameterLast valueTime (UTC)Quality
Water level 0.08 m 2026-10-17 16:30 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

Environment Agency: Port Isaac (ea:49170). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/cornwall/port-isaac

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer