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Excellent: 16Good: 1
✅ Not a single site in Luxembourg is rated Poor this season.
✅ The safest bets in Luxembourg
Sites that have held the top rating five seasons in a row — not a one-year fluke.
- Lac de la Haute Sure-lultzhausen Excellent ✅ Excellent five seasons straight
- Lac de Weiswampach-zone 3 Excellent ✅ Excellent five seasons straight
- Etangs Remerschen-zone 1 Excellent ✅ Excellent five seasons straight
- Lac de Weiswampach-zone 4 Excellent ✅ Excellent five seasons straight
- Etangs Remerschen-zone 3 Excellent ✅ Excellent five seasons straight
- Lac de la Haute Sure-fuussefeld Excellent ✅ Excellent five seasons straight
- Lac de la Haute Sure-burgfried Excellent ✅ Excellent five seasons straight
- Lac de la Haute Sure-insenborn Excellent ✅ Excellent five seasons straight
- Lac de la Haute Sure-liefrange Excellent ✅ Excellent five seasons straight
- Lac de Weiswampach-zone 2 Excellent ✅ Excellent five seasons straight
- Lac de la Haute Sure-rommwiss Excellent ✅ Excellent five seasons straight
📍 Destinations in Luxembourg
Common questions about swimming in Luxembourg
Is it safe to swim in Luxembourg?
Mostly yes. 94% of Luxembourg's 17 officially monitored bathing sites hold the top "Excellent" class in the 2025 assessment, and not a single one is rated Poor.
Which beaches in Luxembourg should I avoid?
None. No bathing site in Luxembourg carries a Poor classification in the 2025 assessment.
Where is the water cleanest in Luxembourg?
11 sites have held the top rating five seasons running — a far better signal than a single good year. Around Luxembourg City you will find the densest clusters.
How often is water quality tested in Luxembourg?
Through the whole bathing season. National sanitary authorities sample each official site for E. coli and intestinal enterococci, report to the European Environment Agency, and the published class reflects the last four seasons combined.
Ratings are the official season-long classification, computed from the last four seasons of sampling — not a live reading. After a storm any site can be temporarily worse; local advisories win.