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Aberdyfi

Gwynedd, Wales
Excellent Water Quality
Data last verified: 08 Aug 2026

Situated in Gwynedd, Wales, Aberdyfi offers bathers a sandy environment. Environment Agency monitoring has evaluated the location since 1990, giving it an official annual rating of Excellent. In addition, dogs are permitted during winter months.

16.4°C
Air Temp
8.3 mph
Wind Speed
Low Tide
in 2h 5m
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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
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Air Temp

16.4°C
Comfortable

Weather

Clear sky
16.4°C

Tide

Low Tide
in 2h 5m

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

Beach Information View all details

Beach Type
Sand
Water Quality
Excellent
Avg. Air Temp
16.4°C
Swimming
Highly recommended

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Coast Deli and Dining
coffee shop
4.8 • 120m away
Bear of Amsterdam Cafe
cafe
4.8 • 120m away
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Reference Information

Full Tide Times
High 04:14 1.1m
Low 11:13 -0.9m
High 16:52 1.0m
Low 23:51 -1.1m
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
Estuary / Transitional Water

Monitored as a transitional or estuarine bathing water. Estuarine sites experience a mix of tidal ocean flushing and river discharge, causing fluctuating salinity and water quality.

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
1990

Officially designated as a protected bathing water site in 1990. This designation mandates regular public health monitoring.

County / District
Gwynedd

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

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