Nab Tower
Diving near the Nab Tower will allow you to encounter diverse marine life, including Edible Crabs, Lobsters, Wrasse, Bib, Blennies, and Gobies. Venturing away from the Tower may even lead you to spot Cat-Sharks. This circular structure can be dived at any state of the tide, following the wall closely. However, it's advised to plan your dive when low currents are expected, as the tide direction rotates. This consideration ensures the peace of mind of the Skippers, especially due to the proximity to shipping lanes.
Referred to as a wedding cake because of its descending profile in expanding layers, the Nab Tower offers varying visibility depending on its position in the middle of the Solent. However, generally, you can expect good visibility ranging from 5-6m. While there are rumors of wrecks around the base, including a submarine, our dives on the N/NE side haven't presented any evidence of these claims.
With a maximum depth of 21m, the Nab Tower welcomes divers of all levels, from beginners to advanced. Its location in England, United Kingdom makes it easily accessible, offering an exciting diving opportunity in the waters of the Solent.
Diving Conditions Score for Nab Tower
Average conditions, be alert.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Nab Tower
Depth
21m
Visibility
1m
Experience Level
Weather Conditions for Nab Tower
Wave Height
1.02m
Wind Speed
22.3 m/s
Water Temp
18.5°C
Visibility
32.64km
Cloud Cover
0%
Wave Period
4.2s
Air Temperature
19.8°C
Precipitation
0 mm
Dive Score Chart for Nab Tower
Best time to dive: 10:00 with score 6.9078333333333335/10. Water conditions: Waves 0.76m, Wind 24.5 m/s.Best night dive time: 3:00 with score 6.086666666666666/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Nab Tower 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.
Score: 6.9/10
Waves: 0.76m (3.8s), Wind: 24.5 m/s
Score: 6.1/10
Waves: 0.7m, Wind: 21.2 m/s
Seasonal Analysis for Nab TowerAlpha
Historical patterns and best seasons for diving at Nab Tower
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 Nab Tower
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Nab Tower
Ideal Conditions for Nab Tower
Water Temp
25.1°C / 77.2°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Nab Tower
Nab Tower shows typical northern hemisphere patterns with June being the warmest month (25.1°C) and December the coldest (21.1°C). The calmest conditions typically occur in January with average wave heights of 0.2m 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