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Cathedral Rocks

Discover the breathtaking underwater world at Cathedral Rocks, a dive site located just off Cathedral Avenue in Cape Ann, United States. This site offers an incredible dive experience, although the exit may pose some challenges. Cathedral Rocks is renowned for its diverse marine life, abundant fish populations, and stunning topographical formations that inspired its name.

Prepare to encounter an array of fish species, including small pelagics and bottom feeders, as you explore the vibrant underwater ecosystem. Marvel at the rich invertebrate life and fascinating crabs that inhabit this site. With maximum depths reaching 75 feet, Cathedral Rocks promises a rewarding dive with an abundance of marine life to discover.

For beginners and experienced divers alike, Cathedral Rocks provides an ideal setting to embark on an underwater adventure. Its convenient location on Cathedral Avenue in Ocean View, Rockport, Essex County, Massachusetts, ensures easy access, with available street parking for divers. With visibility of approximately 7 meters and a maximum depth of 21 meters, this dive site offers a perfect opportunity to explore and immerse yourself in the underwater wonders of Cape Ann, United States.

Diving Conditions Score for Cathedral Rocks

6
Above Average

Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Cathedral Rocks

Depth

21m

Visibility

7m

Experience Level

beginner

Weather Conditions for Cathedral Rocks

Wave Height

0.92m

Wind Speed

13.4 m/s

Water Temp

17.4°C

Visibility

30.2km

Cloud Cover

0%

Wave Period

7.75s

Air Temperature

22.6°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Cathedral Rocks
Alpha

Dive Score Chart for Cathedral Rocks

Best time to dive: 15:00 with score 7.827956989247312/10. Water conditions: Waves 0.82m, Wind 6 m/s.Best night dive time: 20:00 with score 6.96486485260771/10.

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

Sunrise at Cathedral Rocks: 06:00
Sunset at Cathedral Rocks: 18:00

Optimal diving conditions at Cathedral Rocks 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
15:00

Score: 7.8/10
Waves: 0.82m (7.75s), Wind: 6 m/s

🌙
Best Night
20:00

Score: 7.0/10
Waves: 0.74m, Wind: 15.5 m/s

Seasonal Analysis for Cathedral Rocks
Alpha

Historical patterns and best seasons for diving at Cathedral Rocks

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 Cathedral Rocks

Winter

Avg. Score: 8.1/10

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

Best Months for Cathedral Rocks

January
Score: 8.3
December
Score: 8.0
February
Score: 7.9

Ideal Conditions for Cathedral Rocks

Water Temp

Thermometer Emoji

23.4°C / 74.1°F

July

Visibility

Telescope Emoji

13.1m / 43.0ft

December

Wave Height

Wave Emoji

1.4m / 4.6ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Cathedral Rocks

Cathedral Rocks shows typical northern hemisphere patterns with July being the warmest month (23.4°C) and January the coldest (-6.7°C). The calmest conditions typically occur in January with average wave heights of 1.4m 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). January 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 - Jul 9, 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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