Perranporth water quality

AMBER

designated bathing water · · South West Water

Perranporth is a designated bathing water in Cornwall, currently rated AMBER for swimming — A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore. Its latest Environment Agency classification is good (2025), and 223 storm-overflow spills were recorded nearby in 2025. Below: live risk, recent spills, official samples, rainfall, tides and nearby reports.

Safe to swim right now?
Take care
A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore.
Do not rely solely on this website for health decisions. Check official alerts and use your own judgement. Seek medical advice if you are unwell.

Current status

Risk: AMBER A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore.

  • Active overflows nearby: 0
  • Recent overflows (48h): 8
  • Rainfall (48h): 14.9 mm

Official EA classification

good (2025)

Latest official sample

2026-08-21 — E.coli 10, enterococci 10 cfu/100ml

Latest independent sample

None published

Pollution & environment data

14.9 mm
Rainfall 48h
16.2 mm
Rainfall 7d
5
Outfalls within 5 km
223
Spills (2025, official)
20
Spills 2026 so far (live)
12
Spills last 30d
falling 1.58m
Tide now

Recent storm overflows nearby (30 days)

In the news nearby

No recent local news matched.

Storm-overflow spills near here, by year (EDM)

Recent spills near here (precise, SWW)

Full spill history near Perranporth

Download CSV

Every storm-overflow discharge Glanmor has recorded within 5 km of Perranporth, newest first.

21 discharge events
StartEndOutfallDistance
2026-08-27 04:002026-08-27 04:30TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-27 03:242026-08-27 04:00TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-27 02:302026-08-27 03:45TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-27 02:252026-08-27 03:15TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-27 00:152026-08-27 07:00TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-27 00:002026-08-27 01:15TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-26 23:502026-08-27 06:45TRIB OF THE BOLINGEY STREAM~2.7 km
2026-08-26 23:312026-08-26 23:32STREAM (S)~3.9 km
2026-08-25 10:452026-08-25 11:15STREAM (S)~3.9 km
2026-08-25 10:272026-08-25 10:47STREAM (S)~3.9 km
2026-08-25 07:302026-08-25 07:45STREAM (S)~3.9 km
2026-08-25 07:122026-08-25 07:19STREAM (S)~3.9 km
2026-06-30 20:262026-06-30 20:43STREAM (S)~3.9 km
2026-06-30 20:002026-06-30 21:30STREAM (S)~3.9 km
2026-06-30 19:062026-06-30 21:15STREAM (S)~3.9 km
2026-06-30 17:152026-06-30 18:00STREAM (S)~3.9 km
2026-06-24 11:442026-06-24 11:48STREAM (S)~3.9 km
2026-06-10 10:382026-06-10 12:46TRIB OF THE BOLINGEY STREAM~2.7 km
2026-06-10 09:392026-06-10 10:38TRIB OF THE BOLINGEY STREAM~2.7 km
2026-05-18 01:352026-05-18 01:50TREVAUNANCE STREAM(S)~4.7 km
2025-07-22 14:242025-07-22 14:40BOLINGEY STREAM~0.7 km
23 precise spill records (duration & volume)
WhenDetailDistance
2026-08-27 14:08spill, 2 min~3.9 km
2026-08-27 03:24spill, 36 min~2.7 km
2026-08-27 02:25spill, 19 min~2.7 km
2026-08-26 23:50spill, 401 min~2.7 km
2026-08-26 23:31spill, 1 min~3.9 km
2026-08-26 23:13spill, 103 min~2.7 km
2026-08-25 10:27spill, 20 min~3.9 km
2026-08-25 07:12spill, 6 min~3.9 km
2026-06-30 20:26spill, 17 min~3.9 km
2026-06-30 19:06spill, 53 min~3.9 km
2026-06-30 18:50spill, 1 min~3.9 km
2026-06-24 11:44spill, 3 min~3.9 km
2026-06-24 11:44spill, 3 min~3.9 km
2026-06-10 10:38spill, 128 min~2.7 km
2026-06-10 10:38spill, 128 min~2.7 km
2026-06-10 09:39spill, 60 min~2.7 km
2026-06-10 09:39spill, 60 min~2.7 km
2026-05-18 01:35spill, 15 min~4.7 km
2026-05-18 01:35spill, 15 min~4.7 km
2026-03-07 05:37spill, 90 min~4.2 km
2026-03-07 05:37spill, 90 min~4.2 km
2025-07-22 14:24spill, 15 min~0.7 km
2025-07-22 14:24spill, 15 min~0.7 km
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Water quality — 7-year trend

Water quality improved in 2026: average E. coli was 30% lower than 2025.

YearEA classificationSamplesE. coli (geo-mean)Enterococci (geo-mean)High readings
2019—1215 cfu/100ml17 cfu/100ml0
2020—312 cfu/100ml10 cfu/100ml0
2021—2019 cfu/100ml20 cfu/100ml1 of 20
2022—2015 cfu/100ml13 cfu/100ml0
2023—2112 cfu/100ml16 cfu/100ml0
2024—1514 cfu/100ml14 cfu/100ml1 of 15
2025good2021 cfu/100ml34 cfu/100ml2 of 20
2026—1515 cfu/100ml16 cfu/100ml1 of 15

Geometric mean of Environment Agency samples per calendar year (the standard bathing-water statistic). "High readings" are samples at or above 500 E. coli or 200 enterococci cfu/100ml.

Perranporth — frequently asked questions

Is it safe to swim at Perranporth today?

Perranporth is currently rated AMBER: A storm overflow discharged within 5 km in the last 48 hours. Falling tide may draw discharge along the shore. This is guidance only — also check official alerts and use your judgement.

Has there been a sewage spill near Perranporth?

223 storm-overflow spills were recorded near Perranporth in 2025 (EA Event Duration Monitoring), and 20 spill events have been logged nearby so far this year.

What is Perranporth's bathing water classification?

Perranporth is classified good for 2025 by the Environment Agency.

Data & provenance

Last updated
2 h ago (2026-08-27 15:45 UTC)
Sources
Environment Agency (samples & classification), South West Water (overflows), EA EDM (annual spills), Open-Meteo (rainfall & tide). Full list on about.
Confidence
High — official classification, 5 outfalls monitored within 5 km.
Risk model
v0.4
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Sample timeline (JSON) · All beaches (CSV)
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