Back To All Beaches
Back to all beaches

St Mary's Bay (Kent)

Folkestone and Hythe, South East
Sufficient Water Quality
Data last verified: 27 Sep 2026

St Mary's Bay in Kent boasts a picturesque shoreline of sand and shingle, offering a tranquil escape from the hustle and bustle of city life. The beach's official water quality rating, as tested by the Environment Agency, is Sufficient, making it a great spot for swimming and water activities. During the summer months, the water temperature at St Mary's Bay can be expected to reach around 18°C, perfect for a refreshing dip.

18.3°C
Air Temp
17.3 mph
Wind Speed
High Tide
in 3h 56m
Get Directions

Live Water Quality

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

Lifeguards

Unknown
Help us verify

Air Temp

18.3°C
Comfortable

Weather

Partly cloudy
18.3°C

Tide

High Tide
in 3h 56m

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
18.3°C
Swimming
Highly recommended

Community Photos

Insider Tips & Community Feed for St Mary's Bay (Kent)

No insider tips yet

Every local tip helps other beachgoers make the most of their visit.
Be the first to share your knowledge about this beach!

Nearby Businesses View all

Advertisement
Grow Your Business

Promote Your
Business

Reach thousands of beachgoers looking for the best local spots.

Stay Near St Mary's Bay (Kent)

Hand-picked holiday cottages & coastal retreats near St Mary's Bay (Kent) (Folkestone and Hythe) & surrounds

Reference Information

Full Tide Times
Low 18:48 -4.0m
High 00:13 4.2m
Low 07:05 -4.2m
High 12:30 4.3m
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.

Explore More Beaches

Previous
Dymchurch
Random
Saunton Sands
Next
Littlestone

Promote Your Business

Own a local café, surf shop, or accommodation near St Mary's Bay (Kent)? Fill out the form below to inquire about premium banner placements.

Thank you! Your advertising inquiry has been submitted. We'll send you our rate card shortly.

Upload a Photo

Share your photo of St Mary's Bay (Kent) with the community!

We require this to prevent spam. It won't be displayed publicly.
If provided, we will credit you on the photo.
You can select up to 10 photos.

Share Local Knowledge

Share hidden gems, parking tips, or hazard warnings for St Mary's Bay (Kent)!

We require this to prevent spam. It won't be displayed publicly.
If provided, we will credit you.
JPG, PNG, or WEBP up to 5MB.

Help Us Update Our Research

Noticed incorrect information for St Mary's Bay (Kent)? Submit updates below and our team will verify and publish them!

Required to prevent spam. We never share your email.
Amenities & Features: