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Mewstone East

Just a short 10-minute boat ride from Plymouth Breakwater in the United Kingdom, you will find the Mewstone dive site. This unique dive spot boasts a distinctive mountain-shaped rock formation that gently slopes down to the seabed. Unlike other areas in the vicinity, the Mewstone has minimal silt, resulting in exceptional visibility of around 7 meters.

Divers of all levels, from beginners to advanced, can enjoy exploring the Mewstone. The underwater canyons formed by the rock structure provide a thriving habitat for a variety of marine life, making it a haven for underwater photography enthusiasts. The site is particularly renowned for being a hotspot for dogfish sightings.

In addition to the captivating marine life, the Mewstone offers the opportunity to experience strong drift currents during spring tides. This adds an extra thrill to your dive adventure, as you navigate through the currents while admiring the captivating surroundings.

Located near prominent landmarks such as HMS Cambridge, Wembury, and Heybrook Bay in the South Hams region of Devon, the Mewstone is easily accessible for divers looking for an unforgettable underwater experience. So whether you are a beginner looking to enhance your skills or an experienced diver seeking new dive sites, the Mewstone won't disappoint.

Diving Conditions Score for Mewstone East

5.1
Average

Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Mewstone East

Depth

14m

Visibility

7m

Experience Level

beginner
advanced

Weather Conditions for Mewstone East

Wave Height

0.6m

Wind Speed

6.8 m/s

Water Temp

16.5°C

Visibility

180m

Cloud Cover

100%

Wave Period

6s

Air Temperature

17.7°C

Precipitation

0.2 mm

Detailed 7-Day Diving Forecast for Mewstone East
Alpha

Dive Score Chart for Mewstone East

Best time to dive: 17:00 with score 7.551855462184874/10. Water conditions: Waves 0.62m, Wind 6.8 m/s.Best night dive time: 18:00 with score 7.190033333333334/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Mewstone East: 06:00
Sunset at Mewstone East: 18:00

Optimal diving conditions at Mewstone East are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.

🌞
Best Overall
17:00

Score: 7.6/10
Waves: 0.62m (5.95s), Wind: 6.8 m/s

🌞
Safest Overall
15:00

Score: 7.5/10
Waves: 0.68m (5.9s), Wind: 5.8 m/s

🌙
Best Night
18:00

Score: 7.2/10
Waves: 0.6m, Wind: 6.5 m/s

Seasonal Analysis for Mewstone East
Alpha

Historical patterns and best seasons for diving at Mewstone East

The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.

Monthly Dive Score Analysis - Seasonal Diving Conditions

Higher values indicate better diving conditions

Seasonal DiveScore Chart

This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.

Higher values indicate better diving conditions

Best Season for Mewstone East

Winter

Avg. Score: 8.0/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for Mewstone East

January
Score: 8.6
December
Score: 7.8
February
Score: 7.7

Ideal Conditions for Mewstone East

Water Temp

Thermometer Emoji

18.1°C / 64.6°F

August

Visibility

Telescope Emoji

15.1m / 49.5ft

January

Wave Height

Wave Emoji

0.9m / 3.0ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Mewstone East

Mewstone East shows typical northern hemisphere patterns with August being the warmest month (18.1°C) and December the coldest (2.7°C). The calmest conditions typically occur in January with average wave heights of 0.9m and wave periods of 8.0s. The most comfortable wave conditions are in January with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). August is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 20, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

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