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Mwnt

Ceredigion, Wales
Excellent Water Quality
Data last verified: 12 Nov 2026

Mwnt, a picturesque coastal village in Ceredigion, Wales, boasts a stunning sandy beach surrounded by rugged cliffs and scenic views. The beach's crystal-clear waters, consistently rated Excellent by Natural Resources Wales, offer a perfect spot for swimming and sunbathing. During the summer months, the water temperature typically ranges from 15°C to 18°C, making it ideal for a refreshing dip.

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Live Water Quality

95
Excellent
Safe for swimming
• Updated 10 mins ago
Today's Conditions • Updated 10 mins ago

Lifeguards

Unknown
Help us verify

Air Temp

6°C
Comfortable

Weather

Partly cloudy
6°C

Tide

Low Tide (1.5m)
in 1h 40m (02:32) • Spring Tide

Water Quality

Excellent
Safe for swimming

Pollution Alerts

None
No alerts today

Quick Overview

Sandy beach
Family friendly
Dog friendly
(winter)
Parking nearby
Toilets
Café
Verified Information

Beach Information View all details

Beach Type
Sand
Water Quality
Excellent
Avg. Air Temp
6°C
Swimming
Highly recommended

Community Photos

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Waters edge Cafe
cafe
4.8 • 120m away
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Reference Information

🌊 Live Tide Curve, Tidal Range & 7-Day Schedule

Harmonic astronomical predictions, tidal coefficients & flow rate

Spring Tide • Coeff 86
Current Water Level
Falling ↓ (2.00m)
73% through current tide cycle (LAT)
Upcoming High & Low
▲ High: 08:35 (4.59m • in 7h 43m)
▼ Low: 02:32 (1.50m • in 1h 40m)
Tidal Range & Coefficient
Range: 3.10m (Coeff 86/120)
Large tidal range — faster tidal currents and higher high water.
Current Tidal Flow
Peak Ebbing Flow
Rule of Twelfths: fastest flow occurs in mid-tide hours 3 & 4.
📈 24-Hour Harmonic Tide Curve (LAT)
Station: Fishguard (5.24 km)
5.1m 3.1m 1.1m 23:0003:0007:0011:0015:0019:00 Low 02:32 (1.5m)High 08:35 (4.6m)Low 15:00 (1.5m)High 20:52 (4.3m) NOW
📅 7-Day High & Low Tide Table
Day High & Low Tides (Local Time) Tidal Range Coeff / Phase
Wed 11 Nov ▼ Low 14:29 (1.35m)▲ High 20:18 (4.49m) 3.14m Spring (87)
Today ▼ Low 02:32 (1.50m)▲ High 08:35 (4.59m)▼ Low 15:00 (1.49m)▲ High 20:52 (4.29m) 3.10m Spring (86)
Fri 13 Nov ▼ Low 02:58 (1.64m)▲ High 09:09 (4.42m)▼ Low 15:32 (1.65m)▲ High 21:26 (4.08m) 2.78m Coeff 79
Sat 14 Nov ▼ Low 03:26 (1.79m)▲ High 09:45 (4.23m)▼ Low 16:08 (1.82m)▲ High 22:02 (3.86m) 2.44m Coeff 70
Sun 15 Nov ▼ Low 03:58 (1.96m)▲ High 10:24 (4.04m)▼ Low 16:52 (1.98m)▲ High 22:45 (3.66m) 2.08m Coeff 61
Mon 16 Nov ▼ Low 04:40 (2.14m)▲ High 11:11 (3.86m)▼ Low 17:49 (2.12m)▲ High 23:39 (3.48m) 1.74m Coeff 53
Tue 17 Nov ▼ Low 05:42 (2.30m)▲ High 12:11 (3.72m)▼ Low 19:04 (2.17m) 1.55m Neap (48)
Reference Station: Fishguard • Model: Primary Harmonic Gauge (TICON) • Datum: LAT Tide predictions via TidesAtlas
Next 4 Tides
Spring Tide
Low 02:32 1.50m
High 08:35 4.59m
Low 15:00 1.49m
High 20:52 4.29m
Current: Falling (2m) • Peak Ebbing Flow
Sediment Type
Sand

The shoreline consists primarily of sand. Sediment type dictates underfoot comfort, wave energy absorption, and the water's clarity when currents stir up the seabed.

Annual Rating
Excellent

Water quality is classified as excellent, meeting the highest cleanliness standards. Bacterial counts (E. coli & Intestinal Enterococci) are consistently low, posing negligible health risks.

Rainfall Impact
High Risk

Bacterial levels are highly susceptible to storm runoff. Heavy rainfall in the local catchment is likely to trigger storm overflows and agricultural runoff, rendering the water temporarily unsafe.

Monitoring Authority
Environment Agency

Tested weekly by the Environment Agency England for bacteria levels (E. coli & Intestinal Enterococci) between May and September.

Water Body Type
Coastal Beach

Monitored as a coastal beach. Coastal beaches are subject to tidal flows and marine dilution, whereas inland lakes/rivers suffer from low water circulation, meaning bacteria can linger longer.

Sewerage Provider
Unknown

Unknown is the regional utility responsible for waste water treatment, sewage infrastructure, and storm overflow management in this catchment area.

Designated Year
2011

Officially designated as a protected bathing water site in 2011. This designation mandates regular public health monitoring.

County / District
Ceredigion

Governed under local district sanitation and environmental safety regulations in the Ceredigion area.

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