Upper Sûre Lake
Reservoir Reservoir and leisure lake in Luxembourg's nature reserve
Upper Sûre Lake in northwestern Luxembourg serves as a reservoir and recreation area; visitors hike, cycle and launch small boats inside the Upper Sûre Nature Park.
Upper Sûre Lake is an artificial reservoir on the Sûre (Sauer) River in northwestern Luxembourg, created by damming the river and forming a long, narrow lake. It functions both as a regional water supply source and as a recreational area within a protected landscape.
The reservoir shoreline supports walking and cycling routes, watersports and small settlements that cater to visitors, and the surrounding countryside is managed for nature conservation and recreation. The lake lies within the Upper Sûre Nature Park, which combines environmental protection with visitor facilities.
The reservoir is located in the Wiltz area of northern Luxembourg and sits amid rolling wooded hills and agricultural land, reachable from nearby towns by regional roads.
- Nature park designation: The reservoir lies inside the Upper Sûre Nature Park, which combines water supply infrastructure with protected countryside and recreational facilities.
What to See #
- Dam and shoreline recreational areas: The dam and reservoir shoreline provide recreational access points used for walking, boating and water sports, with several small villages on the reservoir's edge.
How to Get to Upper Sûre Lake #
From Wiltz, follow the N27 south-west toward Esch-sur-Sûre (about 18 km, 20-25 minutes by car). Regional buses connect Wiltz with Esch-sur-Sûre in summer; once in Esch-sur-Sûre the main lakeside trails and viewpoints are a short walk or cycle away.
Tips for Visiting Upper Sûre Lake #
- Rent a bicycle in Esch-sur-Sûre or Wiltz and follow the lakeside paths for the quietest views.
- Head to the Belvédère de la Haute-Sûre viewpoint at sunset for the best light on the reservoir and dam - local photographers prize that vantage.
- Bring insect repellent in summer: shallow bays and reed beds attract midges that love still water.
Best Time to Visit Upper Sûre Lake #
The reservoir and the surrounding Parc naturel de la Haute-Sûre are best experienced from late spring through early autumn; crowds are light outside July and August.
Weather & Climate near Upper Sûre Lake #
Upper Sûre Lake's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in August) and cold winters (coldest in January). Temperatures range from -2°C to 21°C. Moderate rainfall (926 mm/year).
January
January is the coolest month with highs of 3°C and lows of -2°C. Regular rainfall (96 mm) and mostly overcast skies.
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February
February is cold with highs of 4°C and lows of -2°C. Moderate rainfall (72 mm) and mostly overcast skies.
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March
March is cold with highs of 8°C and lows of 1°C. Moderate rainfall (78 mm) and mostly overcast skies.
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April
April is cold with highs of 11°C and lows of 3°C. Moderate rainfall (62 mm) and partly cloudy skies.
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May
May is cool with highs of 16°C and lows of 7°C. Moderate rainfall (72 mm) and mostly overcast skies.
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June
June is cool with highs of 19°C and lows of 10°C. Moderate rainfall (73 mm) and mostly overcast skies.
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July
July is cool with highs of 21°C and lows of 12°C. Moderate rainfall (67 mm) and partly cloudy skies.
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August
August is cool with highs of 21°C and lows of 12°C. Moderate rainfall (59 mm) and mostly overcast skies.
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September
September is cool with highs of 17°C and lows of 9°C. Moderate rainfall (70 mm) and partly cloudy skies.
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October
October is cold with highs of 12°C and lows of 6°C. Regular rainfall (82 mm) and mostly overcast skies.
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November
November is cold with highs of 7°C and lows of 2°C. Regular rainfall (90 mm) and mostly overcast skies.
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December
December is cold with highs of 4°C and lows of 0°C. The wettest month with heavy rain (105 mm) and mostly overcast skies.
