Countess of Erne
This dive site is home to a historic paddle steamer that was built in the late 1800s. In its final years, it was repurposed as a barge to transport coal to the battleships docked in the harbor. Unfortunately, in 1935, it was forcefully detached from its moorings and has since become a fascinating wreck resting against the breakwater wall.
Situated on a silty seabed, this dive offers a maximum depth of 16 meters. The wreck remains upright and its empty holds provide an opportunity for divers to swim in and out of them. It serves as an excellent training site for divers of all levels or simply as a site to explore and discover.
Located in the United Kingdom, specifically in Portland, Castletown, Dorset, this dive site showcases a visibility of 5 meters and a maximum depth of 13 meters. It is particularly suitable for beginner divers who are looking to gain experience in an intriguing and historically significant underwater environment.
Plan your dive to this captivating wreck and immerse yourself in the rich maritime heritage of the United Kingdom.
Situated on a silty seabed, this dive offers a maximum depth of 16 meters. The wreck remains upright and its empty holds provide an opportunity for divers to swim in and out of them. It serves as an excellent training site for divers of all levels or simply as a site to explore and discover.
Located in the United Kingdom, specifically in Portland, Castletown, Dorset, this dive site showcases a visibility of 5 meters and a maximum depth of 13 meters. It is particularly suitable for beginner divers who are looking to gain experience in an intriguing and historically significant underwater environment.
Plan your dive to this captivating wreck and immerse yourself in the rich maritime heritage of the United Kingdom.
Diving Conditions Score for Countess of Erne
6.4
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Countess of Erne
Depth
13m
Visibility
5m
Experience Level
beginner
Weather Conditions for Countess of Erne
Wave Height
0.64m
Wind Speed
15.1 m/s
Water Temp
17°C
Visibility
54.26km
Cloud Cover
0%
Wave Period
3.65s
Air Temperature
21.4°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Countess of Erne
Alpha
Dive Score Chart for Countess of Erne
Best time to dive: 15:00 with score 7.3133333333333335/10. Water conditions: Waves 0.8m, Wind 22 m/s.Best night dive time: 3:00 with score 7.033150684931507/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Countess of Erne: 06:00
Sunset at Countess of Erne: 18:00
Optimal diving conditions at Countess of Erne 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
15:00Score: 7.3/10
Waves: 0.8m (4s), Wind: 22 m/s
Safest Overall
17:00Score: 7.2/10
Waves: 0.78m (3.95s), Wind: 4 m/s
Best Night
3:00Score: 7.0/10
Waves: 0.46m, Wind: 15.5 m/s
Seasonal Analysis for Countess of ErneAlpha
Historical patterns and best seasons for diving at Countess of Erne
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 Countess of Erne
Winter
Avg. Score: 8.2/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Countess of Erne
January
Score: 8.8
December
Score: 8.1
February
Score: 7.8
Ideal Conditions for Countess of Erne
Water Temp
18.4°C / 65.1°F
July
Visibility
16.4m / 53.8ft
January
Wave Height
0.7m / 2.3ft
January
Wave Period
8.0s
January
Seasonal Insights for Countess of Erne
Countess of Erne shows typical northern hemisphere patterns with July being the warmest month (18.4°C) and December the coldest (1.9°C). The calmest conditions typically occur in January with average wave heights of 0.7m 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.
Last updated: 1 min. ago - Jun 22, 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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