Porthleven Sands water quality
GREENdesignated bathing water · · South West Water
Porthleven Sands is a designated bathing water in Cornwall, currently rated GREEN for swimming — No recent overflow, low rainfall, no high samples. Its latest Environment Agency classification is excellent (2025), and 111 storm-overflow spills were recorded nearby in 2025. Below: live risk, recent spills, official samples, rainfall, tides and nearby reports.
Current status
Risk: GREEN No recent overflow, low rainfall, no high samples.
- Active overflows nearby: 0
- Recent overflows (48h): 0
- Rainfall (48h): 2.2 mm
Official EA classification
excellent (2025)
Latest official sample
2026-06-23 — E.coli 10, enterococci 10 cfu/100ml
Latest independent sample
None published
Pollution & environment data
Recent storm overflows nearby (30 days)
- 2026-06-25 23:24 · ended~3.2 km
In the news nearby
No recent local news matched.
Storm-overflow spills near here, by year (EDM)
Recent spills near here (precise, SWW)
- spill, 18 min2026-06-25 · ~3.2 km
- spill, 18 min2026-06-25 · ~3.2 km
- spill, 8 min2026-04-24 · ~3.2 km
- spill, 8 min2026-04-24 · ~3.2 km
Full spill history near Porthleven Sands
Download CSVEvery storm-overflow discharge Glanmor has recorded within 5 km of Porthleven Sands, newest first.
7 discharge events
| Start | End | Outfall | Distance |
|---|---|---|---|
| 2026-06-25 23:24 | 2026-06-25 23:42 | RIVER COBER VIA SWS | ~3.2 km |
| 2026-04-24 00:14 | 2026-04-24 00:22 | RIVER COBER VIA SWS | ~3.2 km |
| 2026-03-30 10:43 | 2026-03-30 10:47 | MOUNTS BAY | ~0.2 km |
| 2026-03-17 09:47 | 2026-03-17 09:49 | RIVER COBER (VIA SWS) | ~3.2 km |
| 2026-03-02 13:29 | 2026-03-03 01:36 | RIVER COBER | ~2.8 km |
| 2026-02-18 21:09 | 2026-02-19 03:02 | RIVER COBER | ~3.3 km |
| 2025-11-12 12:23 | 2025-11-12 12:26 | MOUNTS BAY, ENGLISH CHANNEL | ~0.3 km |
14 precise spill records (duration & volume)
| When | Detail | Distance |
|---|---|---|
| 2026-06-25 23:24 | spill, 18 min | ~3.2 km |
| 2026-06-25 23:24 | spill, 18 min | ~3.2 km |
| 2026-04-24 00:14 | spill, 8 min | ~3.2 km |
| 2026-04-24 00:14 | spill, 8 min | ~3.2 km |
| 2026-03-30 10:43 | spill, 4 min | ~0.2 km |
| 2026-03-30 10:43 | spill, 4 min | ~0.2 km |
| 2026-03-17 09:47 | spill, 1 min | ~3.2 km |
| 2026-03-17 09:47 | spill, 1 min | ~3.2 km |
| 2026-03-02 13:29 | spill, 727 min | ~2.8 km |
| 2026-03-02 13:29 | spill, 727 min | ~2.8 km |
| 2026-02-18 21:09 | spill, 354 min | ~3.3 km |
| 2026-02-18 21:09 | spill, 354 min | ~3.3 km |
| 2025-11-12 12:23 | spill, 3 min | ~0.3 km |
| 2025-11-12 12:23 | spill, 3 min | ~0.3 km |
Water quality trend
Porthleven Sands — frequently asked questions
Is it safe to swim at Porthleven Sands today?
Porthleven Sands is currently rated GREEN: No recent overflow, low rainfall, no high samples. This is guidance only — also check official alerts and use your judgement.
Has there been a sewage spill near Porthleven Sands?
111 storm-overflow spills were recorded near Porthleven Sands in 2025 (EA Event Duration Monitoring), and 6 spill events have been logged nearby so far this year.
What is Porthleven Sands's bathing water classification?
Porthleven Sands is classified excellent for 2025 by the Environment Agency.
Data & provenance
- Last updated
- 3 h ago (2026-06-30 15:15 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, 7 outfalls monitored within 5 km.
- Risk model
- v0.3
- Download
- Sample timeline (JSON) · All beaches (CSV)
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