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St Helens

Isle of Wight, South East
Excellent Water Quality
Data last verified: 12 Nov 2026

St Helens, on the picturesque Isle of Wight, boasts a stunning estuary coastline with soft sand shores. The Environment Agency consistently rates the bathing water quality as Excellent, making it an ideal spot for families and water sports enthusiasts. During the summer months, the water temperature reaches a pleasant 17-18°C, perfect for swimming and water activities.

8.7°C
Air Temp
15.5 mph
Wind Speed
Low Tide (1.49m)
in 4h 59m (05:52) • Spring Tide
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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
Help us verify

Air Temp

8.7°C
Comfortable

Weather

Partly cloudy
8.7°C

Tide

Low Tide (1.49m)
in 4h 59m (05:52) • Spring Tide

Water Quality

Excellent
Safe for swimming

Pollution Alerts

None
No alerts today

Quick Overview

Sand & Shingle beach
Family friendly
Dog friendly
(year-round)
Parking nearby
Toilets
Café
Verified Information

Beach Information View all details

Beach Type
Sand & Shingle
Water Quality
Excellent
Avg. Air Temp
8.7°C
Swimming
Highly recommended

Community Photos

Insider Tips & Community Feed for St Helens

J
Jacky Matthews - local resident
August 20, 2026
Insider Tip
Car park is a pay and display. Cafe open tourist season.
Toilets facilities open all year. Defib equipment at the toilet block.

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Reference Information

🌊 Live Tide Curve, Tidal Range & 7-Day Schedule

Harmonic astronomical predictions, tidal coefficients & flow rate

Spring Tide • Coeff 86
Current Water Level
High Tide (Slack) • (4.61m)
6% through current tide cycle (LAT)
Upcoming High & Low
▲ High: 12:41 (4.64m • in 11h 47m)
▼ Low: 05:52 (1.49m • in 4h 59m)
Tidal Range & Coefficient
Range: 3.30m (Coeff 86/120)
Large tidal range — faster tidal currents and higher high water.
Current Tidal Flow
Slack Water (Calmest)
Rule of Twelfths: fastest flow occurs in mid-tide hours 3 & 4.
📈 24-Hour Harmonic Tide Curve (LAT)
Station: Portsmouth (9.51 km)
5.2m 3.1m 0.9m 23:0003:0007:0011:0015:0019:00 Low 05:52 (1.5m)High 12:41 (4.6m)Low 18:10 (1.3m) NOW
📅 7-Day High & Low Tide Table
Day High & Low Tides (Local Time) Tidal Range Coeff / Phase
Wed 11 Nov ▼ Low 17:35 (1.22m) --
Today ▲ High 00:36 (4.63m)▼ Low 05:52 (1.49m)▲ High 12:41 (4.64m)▼ Low 18:10 (1.34m) 3.30m Spring (86)
Fri 13 Nov ▲ High 01:16 (4.54m)▼ Low 06:28 (1.66m)▲ High 13:15 (4.50m)▼ Low 18:45 (1.50m) 3.04m Coeff 78
Sat 14 Nov ▲ High 01:56 (4.42m)▼ Low 07:05 (1.85m)▲ High 13:51 (4.33m)▼ Low 19:21 (1.69m) 2.73m Coeff 70
Sun 15 Nov ▲ High 02:39 (4.29m)▼ Low 07:46 (2.05m)▲ High 14:31 (4.15m)▼ Low 20:02 (1.88m) 2.41m Coeff 61
Mon 16 Nov ▲ High 03:27 (4.17m)▼ Low 08:35 (2.22m)▲ High 15:19 (3.97m)▼ Low 20:53 (2.06m) 2.11m Coeff 53
Tue 17 Nov ▲ High 04:24 (4.08m)▼ Low 09:42 (2.35m)▲ High 16:23 (3.84m)▼ Low 22:03 (2.19m) 1.89m Neap (47)
Reference Station: Portsmouth • Model: Primary Harmonic Gauge (TICON) • Datum: LAT Tide predictions via TidesAtlas
Next 4 Tides
Spring Tide
Low 05:52 1.49m
High 12:41 4.64m
Low 18:10 1.34m
High 01:16 4.54m
Current: High Tide (Slack) (4.61m) • Slack Water (Calmest)
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
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
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
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
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
Isle of Wight

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

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