Heiliger See
The lake is part of the Prussian Palaces and Gardens Foundation Potsdam (New Garden) and has limited access for diving. However, it is easily accessible for up to 10 divers per day. To secure a spot, simply register via email at info@200bar.de or by phone at 0331/2701613. The registration process is typically straightforward.
The lakebed consists of sandy substrate with shells, with sediment beginning at a depth of approximately 3 meters. Divers can expect to encounter perch, lead, rudd, pike, catfish, and occasionally eels. Visibility ranges from 0.5 to 4 meters, depending on the season.
Please note that only divers are allowed access to the lake. The entrance is located at the Rondell Seestraße corner Mühlenweg. Additionally, there is a platform situated at a depth of 6 meters, offering a great viewpoint.
For your convenience, here are some additional details:
- Visibility: 2 meters
- Maximum depth: 7 meters
- Recommended Diver Level: beginner, advanced
- Country: Germany
- Close Location: 43, Seestraße, Berliner Vorstadt, Nördliche Vorstädte, Potsdam, Brandenburg, 14467, Germany
The lakebed consists of sandy substrate with shells, with sediment beginning at a depth of approximately 3 meters. Divers can expect to encounter perch, lead, rudd, pike, catfish, and occasionally eels. Visibility ranges from 0.5 to 4 meters, depending on the season.
Please note that only divers are allowed access to the lake. The entrance is located at the Rondell Seestraße corner Mühlenweg. Additionally, there is a platform situated at a depth of 6 meters, offering a great viewpoint.
For your convenience, here are some additional details:
- Visibility: 2 meters
- Maximum depth: 7 meters
- Recommended Diver Level: beginner, advanced
- Country: Germany
- Close Location: 43, Seestraße, Berliner Vorstadt, Nördliche Vorstädte, Potsdam, Brandenburg, 14467, Germany
Diving Conditions Score for Heiliger See
6.8
Above AverageDecent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Heiliger See
Depth
7m
Visibility
2m
Experience Level
beginner
advanced
Weather Conditions for Heiliger See
Wave Height
1m
Wind Speed
10.7 m/s
Water Temp
18°C
Visibility
20.98km
Cloud Cover
0%
Wave Period
8s
Air Temperature
25.2°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Heiliger See
Alpha
Dive Score Chart for Heiliger See
Best time to dive: 7:00 with score 7.846933333333333/10. Water conditions: Waves 1m, Wind 4.6 m/s.Best night dive time: 3:00 with score 7.643333333333333/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Heiliger See: 06:00
Sunset at Heiliger See: 18:00
Optimal diving conditions at Heiliger See 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
7:00Score: 7.8/10
Waves: 1m (8s), Wind: 4.6 m/s
Best Night
3:00Score: 7.6/10
Waves: 1m, Wind: 2.5 m/s
Seasonal Analysis for Heiliger SeeAlpha
Historical patterns and best seasons for diving at Heiliger See
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 Heiliger See
Winter
Avg. Score: 8.4/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Heiliger See
December
Score: 8.8
January
Score: 8.6
March
Score: 8.0
Ideal Conditions for Heiliger See
Water Temp
20.4°C / 68.7°F
August
Visibility
16.6m / 54.5ft
December
Wave Height
0.5m / 1.6ft
December
Wave Period
8.0s
January
Seasonal Insights for Heiliger See
Heiliger See shows typical northern hemisphere patterns with August being the warmest month (20.4°C) and December the coldest (-2.2°C). The calmest conditions typically occur in December with average wave heights of 0.5m and wave periods of 8.0s. The most comfortable wave conditions are in December 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). March is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during December to February, 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 21, 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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