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St Mary's Bay (Kent)

Folkestone and Hythe, South East
Sufficient Water Quality
Data last verified: 08 Aug 2026

St Mary's Bay (Kent) is a well-known coastal bathing water in Folkestone and Hythe, South East, recognized for its sand and shingle terrain. Official water quality sampling at this location currently carries an annual rating of Sufficient. Designated in 1988, the site is maintained under national environmental monitoring standards.

19.5°C
Air Temp
13.7 mph
Wind Speed
Low Tide
in 5h 14m
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Live Water Quality

60
Sufficient
Safe for swimming
Updated 10 mins ago
Today's Conditions Updated 10 mins ago

Lifeguards

Unknown
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Air Temp

19.5°C
Comfortable

Weather

Clear sky
19.5°C

Tide

Low Tide
in 5h 14m

Water Quality

Sufficient
Safe for swimming

Pollution Alerts

None
No alerts today

Quick Overview

Sand & Shingle beach
Family friendly
Dog friendly
(winter)
Parking nearby
Toilets
Café

Beach Information View all details

Beach Type
Sand, Shingle
Water Quality
Sufficient
Avg. Air Temp
19.5°C
Swimming
Highly recommended

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Reference Information

Full Tide Times
High 06:49 2.0m
Low 13:31 -1.7m
High 19:28 2.1m
Low 02:48 -1.7m
Sediment Type
Sand, Shingle

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

Annual Rating
Sufficient

Water complies with minimum legal safety limits. However, higher bacterial levels are occasionally recorded, indicating moderate vulnerability to runoff.

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
Southern Water Services Limited

Southern Water Services Limited 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
Folkestone and Hythe

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

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