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West Mersea

Colchester, Anglian
Good Water Quality
Data last verified: 08 Aug 2026

West Mersea is a shingle bathing spot situated in Colchester, Anglian. Designated as an official bathing water site in 1991, the site is monitored regularly by environmental authorities and holds a current annual water quality rating of Good. In addition, dogs are permitted during winter months.

18.7°C
Air Temp
7.9 mph
Wind Speed
High Tide
in 0h 1m
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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
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Air Temp

18.7°C
Comfortable

Weather

Clear sky
18.7°C

Tide

High Tide
in 0h 1m

Water Quality

Good
Safe for swimming

Pollution Alerts

None
No alerts today

Quick Overview

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

Beach Information View all details

Beach Type
Mud, Shingle
Water Quality
Good
Avg. Air Temp
18.7°C
Swimming
Highly recommended

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Reference Information

Full Tide Times
Low 02:08 -1.5m
High 08:17 1.3m
Low 14:20 -1.4m
High 20:51 1.8m
Sediment Type
Mud, Shingle

The shoreline consists primarily of mud, shingle. 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
Anglian Water Services Limited

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

Designated Year
1991

Officially designated as a protected bathing water site in 1991. This designation mandates regular public health monitoring.

County / District
Colchester

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

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