Schloss Heroldeck, Millstätter See
The dive site becomes particularly fascinating between the surface and 15m depth, where you'll encounter a captivating array of rocky formations, tree trunks, and dense underwater vegetation. This underwater habitat provides a sanctuary for pike, perch, tench, rudd, roach, catfish, and zander. As you explore further, approximately 15 minutes into the dive, you'll come across a sunken rowboat resting at 5m depth.
If you proceed about 50m towards Millstadt from the parking bay, you will discover another entrance. Access to the water is facilitated by a sturdy staircase, leading you to a small plateau for ease of entry. Once submerged, you'll navigate through a remarkable underwater world characterized by large rocks, tree trunks, and a densely overgrown bank. As you venture deeper, the sandy to stony bottom emerges at around 20m depth. After approximately 15-20 minutes, you'll encounter a more gently sloping terrain devoid of underwater vegetation. This is where the buoy field of the local fishing association begins. It is recommended to transition to the shallow shore zone, as you make your way back, where you will pass a sunken rowing boat standing upright on the rocks at a depth of 5m. Meanwhile, you will find yourself surrounded by schools of fish, as you navigate through the upper part of the vegetation. Bask in the sight of pike basking in the milfoil and tench playing a game of hide and seek.
Following the contour of the shore and descending to about 4m, you will encounter majestic tree trunks, serving as a haven for catfish and pike. With good visibility, you may even have a clear view of the staircase from below, marking your return to the starting point.
Located in Austria, close to B98, Millstatt, Pesenthein am Millstätter See, Millstatt am See, and Bezirk Spittal an der Drau in Carinthia, this dive site offers an unforgettable experience for divers of all levels. Whether you are a beginner or an advanced diver, this underwater paradise is yours to explore. With a maximum depth of 22m and visibility of approximately 5m, dive enthusiasts will be captivated by the diverse and thriving aquatic ecosystem that awaits beneath the surface.
Diving Conditions Score for Schloss Heroldeck, Millstätter See
Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Schloss Heroldeck, Millstätter See
Depth
22m
Visibility
5m
Experience Level
Weather Conditions for Schloss Heroldeck, Millstätter See
Wave Height
1m
Wind Speed
3.7 m/s
Water Temp
18°C
Visibility
37.88km
Cloud Cover
0%
Wave Period
8s
Air Temperature
30.2°C
Precipitation
0 mm
Dive Score Chart for Schloss Heroldeck, Millstätter See
Best time to dive: 13:00 with score 7.980933333333334/10. Water conditions: Waves 1m, Wind 2.2 m/s.Best night dive time: 5:00 with score 7.683333333333334/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Optimal diving conditions at Schloss Heroldeck, Millstätter 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.
Score: 8.0/10
Waves: 1m (8s), Wind: 2.2 m/s
Score: 7.7/10
Waves: 1m, Wind: 0.5 m/s
Seasonal Analysis for Schloss Heroldeck, Millstätter SeeAlpha
Historical patterns and best seasons for diving at Schloss Heroldeck, Millstätter 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 Schloss Heroldeck, Millstätter See
Winter
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Schloss Heroldeck, Millstätter See
Ideal Conditions for Schloss Heroldeck, Millstätter See
Water Temp
21.2°C / 70.2°F
July
Visibility
20.0m / 65.6ft
November
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Schloss Heroldeck, Millstätter See
Schloss Heroldeck, Millstätter See shows typical northern hemisphere patterns with July being the warmest month (21.2°C) and January the coldest (-2.9°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 20, 2026