Which lakes in Luxembourg are best to swim in?

16 of 17 designated bathing waters in Luxembourg are rated Excellent for 2025 under the EU Bathing Water Directive. That class measures E. coli and intestinal enterococci only — it is not a safety clearance.

Is it safe to swim in Luxembourg lakes?

The official class is a bacteriological rating, not a safety clearance. It does not cover algal blooms, nutrients, water clarity, currents, or depth. Conditions change after heavy rain. Check local signage and the operator's current notices before entering the water.

Whose ratings do the Luxembourg lake pages show?

The publishing authority's own. Pages for lakes in Luxembourg show the values and classes that authority reports, with the season or year each was taken.

Lakes in Luxembourg, 17 Swim Sites (2025)

Excellent: 16Good: 1

Lake map

Map shows 17 lakes with coordinates

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Best-rated lakes to swim in Luxembourg

Officially classified Excellent for the 2025 bathing season, ranked by how often that class has held. Full best-lakes list →

Etangs Remerschen-Zone 1Excellent · Excellent 11/11 seasons
Etangs Remerschen-Zone 3Excellent · Excellent 11/11 seasons
Lac de la Haute Sure-BurgfriedExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-FuussefeldExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-InsenbornExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LiefrangeExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LultzhausenExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-RommwissExcellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 2Excellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 1Excellent · Excellent 10/11 seasons
Etangs Remerschen-Zone 2Excellent · Excellent 9/11 seasons
Etangs Remerschen-Zone 4Excellent · Excellent 5/8 seasons
Lac de Weiswampach-Zone 3Excellent · Excellent 5/5 seasons
Lac de Weiswampach-Zone 4Excellent · Excellent 5/5 seasons
Lac d'Echternach - Auberge de JeunesseExcellent · Excellent 3/6 seasons

Every rated bathing water in Luxembourg

Etangs Remerschen-Zone 1Excellent · Excellent 11/11 seasons
Etangs Remerschen-Zone 3Excellent · Excellent 11/11 seasons
Lac de la Haute Sure-BurgfriedExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-FuussefeldExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-InsenbornExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LiefrangeExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-LultzhausenExcellent · Excellent 11/11 seasons
Lac de la Haute Sure-RommwissExcellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 2Excellent · Excellent 11/11 seasons
Lac de Weiswampach-Zone 1Excellent · Excellent 10/11 seasons
Etangs Remerschen-Zone 2Excellent · Excellent 9/11 seasons
Etangs Remerschen-Zone 4Excellent · Excellent 5/8 seasons
Lac d'Echternach - L' Île des PêcheursGood · Excellent 5/6 seasons
Lac de Weiswampach-Zone 3Excellent · Excellent 5/5 seasons
Lac de Weiswampach-Zone 4Excellent · Excellent 5/5 seasons
Lac d'Echternach - Auberge de JeunesseExcellent · Excellent 3/6 seasons
Lac d'Echternach - Ponton Grande ÎleExcellent · Excellent 2/6 seasons

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Frequently asked questions

Which lakes in Luxembourg are best to swim in?: 16 of 17 designated bathing waters in Luxembourg are rated Excellent for 2025 under the EU Bathing Water Directive. That class measures E. coli and intestinal enterococci only — it is not a safety clearance.
Is it safe to swim in Luxembourg lakes?: The official class is a bacteriological rating, not a safety clearance. It does not cover algal blooms, nutrients, water clarity, currents, or depth. Conditions change after heavy rain. Check local signage and the operator's current notices before entering the water.
Whose ratings do the Luxembourg lake pages show?: The publishing authority's own. Pages for lakes in Luxembourg show the values and classes that authority reports, with the season or year each was taken.