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Benllech

Isle of Anglesey, Wales
Good Water Quality
Data last verified: 12 Nov 2026

Benllech Beach on the Isle of Anglesey boasts a picturesque shoreline of golden sand, surrounded by rugged coastline and scenic views. The beach consistently receives a Good water quality rating from Natural Resources Wales, making it an ideal spot for swimming and sunbathing. During the summer months, the water temperature typically ranges from 15-18°C, perfect for a refreshing dip.

9.3°C
Air Temp
26.6 mph
Wind Speed
Low Tide (1.91m)
in 4h 41m (06:11) • Spring Tide
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Live Water Quality

80
Good
Safe for swimming
• Updated 10 mins ago
Today's Conditions • Updated 10 mins ago

Lifeguards

Unknown
Help us verify

Air Temp

9.3°C
Comfortable

Weather

Partly cloudy
9.3°C

Tide

Low Tide (1.91m)
in 4h 41m (06:11) • Spring Tide

Water Quality

Good
Safe for swimming

Pollution Alerts

None
No alerts today

Quick Overview

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

Beach Information View all details

Beach Type
Sand
Water Quality
Good
Avg. Air Temp
9.3°C
Swimming
Highly recommended

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The Wendon Cafe & Seaside Shop
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4.8 • 120m away
The Bay Cafe
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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 87
Current Water Level
Falling ↓ (6.66m)
27% through current tide cycle (LAT)
Upcoming High & Low
▲ High: 12:01 (7.76m • in 10h 31m)
▼ Low: 06:11 (1.91m • in 4h 41m)
Tidal Range & Coefficient
Range: 5.85m (Coeff 87/120)
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: Bangor (5.68 km)
8.7m 5m 1.2m 00:0004:0008:0012:0016:0020:00 Low 06:11 (1.9m)High 12:01 (7.8m)Low 18:36 (1.9m) NOW
📅 7-Day High & Low Tide Table
Day High & Low Tides (Local Time) Tidal Range Coeff / Phase
Wed 11 Nov ▼ Low 18:02 (1.74m)▲ High 23:46 (7.64m) 5.90m Spring (88)
Today ▼ Low 06:11 (1.91m)▲ High 12:01 (7.76m)▼ Low 18:36 (1.95m) 5.85m Spring (87)
Fri 13 Nov ▲ High 00:20 (7.39m)▼ Low 06:43 (2.16m)▲ High 12:34 (7.55m)▼ Low 19:13 (2.18m) 5.39m Coeff 79
Sat 14 Nov ▲ High 00:57 (7.10m)▼ Low 07:17 (2.43m)▲ High 13:10 (7.29m)▼ Low 19:53 (2.42m) 4.87m Coeff 70
Sun 15 Nov ▲ High 01:37 (6.78m)▼ Low 07:56 (2.71m)▲ High 13:51 (6.98m)▼ Low 20:40 (2.66m) 4.32m Coeff 60
Mon 16 Nov ▲ High 02:26 (6.47m)▼ Low 08:44 (2.99m)▲ High 14:42 (6.68m)▼ Low 21:39 (2.84m) 3.84m Coeff 52
Tue 17 Nov ▲ High 03:29 (6.22m)▼ Low 09:47 (3.20m)▲ High 15:51 (6.45m)▼ Low 22:44 (2.89m) 3.56m Neap (47)
Reference Station: Bangor • Model: Harmonic Port Transfer (Llandudno) • Datum: LAT Tide predictions via TidesAtlas
Next 4 Tides
Spring Tide
Low 06:11 1.91m
High 12:01 7.76m
Low 18:36 1.95m
High 00:20 7.39m
Current: Falling (6.66m) • 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
Good

Water quality is clean and fully compliant with safety directives. It regularly meets bacterial limits under standard environmental conditions.

Rainfall Impact
Low Risk

This bathing water is generally resilient and has a low risk of quality degradation after heavy summer storm events.

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
1988

Officially designated as a protected bathing water site in 1988. This designation mandates regular public health monitoring.

County / District
Isle of Anglesey

Governed under local district sanitation and environmental safety regulations in the Isle of Anglesey area.

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