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Port, Lac de Nantua

The dive site reaches a maximum depth of 42m and can be accessed either through steps or a pontoon. As you descend, the site quickly becomes darker and may even appear black at greater depths. The visibility in shallow water can vary depending on the season, but improves significantly below 10m. The bottom of the site is covered in muddy sediment.

One of the highlights of this dive is the visible aircraft wreck located at a depth of 27m. In addition to the wreck, divers can also spot common perch in shallow water and occasionally even at the same level as the plane. Other species such as pike and plate can also be encountered during the dive.

This dive site is recommended for advanced and expert level divers due to its maximum depth of 42m. Located in France, the site is conveniently situated close to 1, Rue du Lac, Port, Nantua, Ain, Auvergne-Rhône-Alpes, Metropolitan France, 01460.

Diving Conditions Score for Port, Lac de Nantua

6.3
Above Average

Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Port, Lac de Nantua

Depth

24m

Visibility

4m

Experience Level

advanced
expert

Weather Conditions for Port, Lac de Nantua

Wave Height

1m

Wind Speed

10.7 m/s

Water Temp

18°C

Visibility

39.08km

Cloud Cover

0%

Wave Period

8s

Air Temperature

22.8°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Port, Lac de Nantua
Alpha

Dive Score Chart for Port, Lac de Nantua

Best time to dive: 9:00 with score 8.083333333333332/10. Water conditions: Waves 1m, Wind 1.1 m/s.Best night dive time: 18:00 with score 7.453333333333333/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at Port, Lac de Nantua: 06:00
Sunset at Port, Lac de Nantua: 18:00

Optimal diving conditions at Port, Lac de Nantua 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
9:00

Score: 8.1/10
Waves: 1m (8s), Wind: 1.1 m/s

🌙
Best Night
18:00

Score: 7.5/10
Waves: 1m, Wind: 2.4 m/s

Seasonal Analysis for Port, Lac de Nantua
Alpha

Historical patterns and best seasons for diving at Port, Lac de Nantua

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 Port, Lac de Nantua

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 Port, Lac de Nantua

January
Score: 10.0
February
Score: 9.9
December
Score: 9.9

Ideal Conditions for Port, Lac de Nantua

Water Temp

Thermometer Emoji

24.6°C / 76.3°F

June

Visibility

Telescope Emoji

20.1m / 65.9ft

October

Wave Height

Wave Emoji

0.2m / 0.7ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Port, Lac de Nantua

Port, Lac de Nantua shows typical northern hemisphere patterns with June being the warmest month (24.6°C) and December the coldest (20.6°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.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

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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