Lake Lugano
Lake Lugano in Ticino, Switzerland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 6 m visibility.
- Clarity
- 6 m
Why Lake Lugano has no A–F grade
Lake Lugano in Switzerland is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: Eawag (the Swiss Federal Institute of Aquatic Science and Technology) and cantonal lake-monitoring programmes.
Lake Lugano is a lake in Ticino County, Switzerland.
Source: Eawag (the Swiss Federal Institute of Aquatic Science and Technology) and cantonal lake-monitoring programmes — not the EPA Water Quality Portal, last sampled 2023-12-20. Grade methodology: LakeGrade methodology.
Watch Lake Lugano water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Lugano
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Crystal clear, you can see 19.7 ft down. Trophic State Index: 34.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lake Lugano
Compare lakeside cabins, hotels, and vacation rentals near Lake Lugano in Ticino, Switzerland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lake Lugano
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Lake Lugano
Frequently asked questions about Lake Lugano
What is the water quality of Lake Lugano?
- Lake Lugano in Ticino, Switzerland has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 6 m visibility.
Is Lake Lugano safe to swim in?
- Lake Lugano has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
Explore Lake Lugano across LakeGrade
More lakes in Switzerland
Where this data comes from
359 measurements from 2 monitoring stations, 2016–2023. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- Eawag
eawag-ch359 samples · —
Analytical methods
- Eawag long-term Swiss lake monitoring
Monitoring station identifiers (2)
LowerLakeLuganoUpperLakeLugano
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.