HB Rorschach
The entrance to the popular dive site "HB" has undergone changes due to the construction of the Würth building. As a result, divers can no longer access the site through its dedicated parking lot. Instead, parking is available on the opposite side of the HB, near the sailing club building. From there, divers need to follow a 200m shoreline path towards the east to reach the HB entrance.
The dive site boasts a diverse range of flora and fauna, similar to the TP boat ramp. However, it is important to avoid diving eastwards towards the harbor. Always ensure that you stay west of the water pipe, which starts directly below the entrance.
For reference, a dive site map showcasing the boat ramp is available.
Key details about the site:
- Visibility: 6m
- Maximum depth: 16m
- Recommended diver level: beginner, advanced, expert
This dive site is located in Switzerland, near the Würth Group on Churerstrasse in Rorschach, Wahlkreis Rorschach, St. Gallen, 9400, Switzerland.
The dive site boasts a diverse range of flora and fauna, similar to the TP boat ramp. However, it is important to avoid diving eastwards towards the harbor. Always ensure that you stay west of the water pipe, which starts directly below the entrance.
For reference, a dive site map showcasing the boat ramp is available.
Key details about the site:
- Visibility: 6m
- Maximum depth: 16m
- Recommended diver level: beginner, advanced, expert
This dive site is located in Switzerland, near the Würth Group on Churerstrasse in Rorschach, Wahlkreis Rorschach, St. Gallen, 9400, Switzerland.
Diving Conditions Score for HB Rorschach
7.1
GoodGood diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for HB Rorschach
Depth
16m
Visibility
6m
Experience Level
beginner
advanced
expert
Weather Conditions for HB Rorschach
Wave Height
1m
Wind Speed
7.6 m/s
Water Temp
18°C
Visibility
39.98km
Cloud Cover
100%
Wave Period
8s
Air Temperature
26.7°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for HB Rorschach
Alpha
Dive Score Chart for HB Rorschach
Best time to dive: 6:00 with score 8.353333333333332/10. Water conditions: Waves 1m, Wind 1.6 m/s.Best night dive time: 4:00 with score 7.610933333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at HB Rorschach: 06:00
Sunset at HB Rorschach: 18:00
Optimal diving conditions at HB Rorschach 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
6:00Score: 8.4/10
Waves: 1m (8s), Wind: 1.6 m/s
Best Night
4:00Score: 7.6/10
Waves: 1m, Wind: 3.7 m/s
Seasonal Analysis for HB RorschachAlpha
Historical patterns and best seasons for diving at HB Rorschach
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 HB Rorschach
Winter
Avg. Score: 9.9/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for HB Rorschach
January
Score: 10.0
February
Score: 9.9
December
Score: 9.9
Ideal Conditions for HB Rorschach
Water Temp
24.7°C / 76.5°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for HB Rorschach
HB Rorschach shows typical northern hemisphere patterns with June being the warmest month (24.7°C) and December the coldest (20.7°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
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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