Wales · the Vale of Glamorgan
Jackson's Bay, Barry Island
No. Sewage discharged 1.9km away 3 hours ago.
Water quality only This says nothing about tides, rip currents, cold water shock or lifeguard cover. Cold water and currents are dangerous even when the water is clean. Read the local signs before you go in. What we cannot tell you.
Checked UK time
Why this verdict
- Bathing season
- Closed until 15 May (neutral factor)
- Recent sewage discharge
- 1.9km away, 3 hours ago (negative factor)
- Annual classification
- Good (positive factor)
- Latest E. coli
- 10 cfu/100ml (positive factor)
- Latest intestinal enterococci
- 530 cfu/100ml (negative factor)
Out of season
Weekly sampling and the daily pollution-risk forecast pause on 30 September and resume on 15 May. This verdict rests on the annual classification, live storm-overflow data and rainfall in the last 24 hours.
Storm overflows are driven by rain, so they spill more in autumn and winter than in summer. See every spill happening now across the UK.
Water temperature
18.3°C Mild
Sea surface, modelled by Open-Meteo.
Tide
Tide is rising
- High water Today
- Low water Today
- High water Today
- Low water Tomorrow
Modelled by Open-Meteo and approximate. Checked against tide gauges these times ran up to half an hour early, so treat them as a guide to whether the water is coming in or going out, not as a tide table. For exact times see Admiralty EasyTide.
Recent sewage discharges nearby
Storm overflows operated by Welsh Water within ten kilometres in the last 48 hours.
- Ended 3 hours agoBarry Docks Pumped Storm Overflow · into Barry No, 2 Dock1.9km from the bathing water
- Ended yesterdayCold Knap Storm Overflow · into Bristol Channel1.9km from the bathing water
- Ended yesterdayBarry Town Long Sea Storm Overflow · into Severn Estuary2.6km from the bathing water
- Ended yesterdayCog Moors WwTW Storm Overflow · into Coastal Waters - Lavernock Point7.2km from the bathing water
- Ended 2 days agoBrockhill Rise Storm Overflow · into Bristol Channel7.2km from the bathing water
- Ended 2 days agoPenarth Road Storm Overflow · into River Ely8.5km from the bathing water
- Ended 2 days agoPenarth Kymin Storm Overflow · into Bristol Channel8.6km from the bathing water
- Ended yesterdayBonvilston East WwTW Overflow · into Nant Llancarfan8.7km from the bathing water
- Ended 2 days agoPenarth Head Storm Overflow · into Severn Estuary8.8km from the bathing water
- Ended 2 days agoGrangetown Storm Overflow · into River Taff9.7km from the bathing water
- Ended 2 days agoTrelai Park Storm Overflow · into River Ely9.9km from the bathing water
See Welsh Water's own storm-overflow map(opens in a new tab) →
Latest bacteria reading
Latest sample · 14 September 2026 · 2 weeks ago
- E. coli
- 10cfu/100ml
- Intestinal enterococci
- 530cfu/100ml
This is the most recent reading. Sampling resumes on 15 May. E. coli and intestinal enterococci are the indicator organisms used in the official classification.
Classification record, 2015 to 2025
Rated Good in both 2015 and 2025.
The regulator republishes this every November as a percentile over readings from up to four bathing seasons, so it describes the water's record rather than today. No classification was made for 2020, when the pandemic cut the bathing season short.
Common questions
- Can you swim at Jackson's Bay, Barry Island?
- No. Sewage discharged 1.9km away 3 hours ago. Jackson's Bay, Barry Island is a designated bathing water, so it is sampled and rated every season. This answer covers water quality only, not tides, currents or lifeguard cover.
- What is the water quality like at Jackson's Bay, Barry Island?
- Jackson's Bay, Barry Island is rated Good in the regulator's 2025 annual classification, a percentile taken over readings from up to four bathing seasons. The most recent sample, taken 14 September 2026, showed 10 cfu/100ml of E. coli and 530 cfu/100ml of intestinal enterococci.
- Has there been sewage at Jackson's Bay, Barry Island recently?
- Yes. 11 storm overflows within ten kilometres of Jackson's Bay, Barry Island: 11 in the last 48 hours.
Where this data comes from
- Contains Natural Resources Wales information © NRW and database right
- Contains water-company storm overflow data, licensed under OGL v3
- View the regulator's full profile
Other beaches nearby
Cleanest beaches in the Vale of Glamorgan →
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Gareth Clubb