Eau d'Heure lakes

Lake Belgian reservoir complex for recreation and hydroelectricity

Belgium’s Eau d’Heure lakes, the country’s largest reservoir complex in Wallonia, provides sailing, windsurfing, cycling routes and lakeside recreation facilities.

Main image

The Eau d’Heure lakes are a managed group of reservoirs in Wallonia, Belgium, forming the country’s largest lake complex and a major regional recreation area. The site combines engineered dams with lakeshore facilities for outdoor leisure.

The lakes and their dams were created in the 20th century as part of regional water‑management and hydro‑engineering works; since then they have been developed to support recreational use and local tourism. Management focuses on balancing water storage, flood control and recreational access.

The lakes lie in southern Belgium in Wallonia, within driving distance of Charleroi and other regional centres; they occupy a rural, forested landscape with road access and visitor parking.

  • Largest lake complex in Belgium: Composed of a group of five interconnected reservoirs, it forms the largest surface area of freshwater in Belgium and is a national centre for water‑based recreation.
  • Water sports: Popular activities include sailing, windsurfing, kayaking and a recreational diving centre, with infrastructure for visitors such as marinas and designated water‑sports areas.

What to See #

  • Plate‑Taille dam: A large masonry dam that forms the largest single reservoir in the lake complex and is the principal structure for water storage and recreation in the site.
Eau d'Heure lakes
50.2075, 4.3909
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https://www.lacsdeleaudheure.be/

How to Get to Eau d'Heure lakes #

The Eau d’Heure lakes lie in Wallonia, roughly southeast of Charleroi and northwest of Philippeville. By car use the E420 and follow local signage to the Lac de la Plate Taille and surrounding marinas. There are local bus links from nearby towns; car access is the most convenient for reaching different lakes and beaches.

Tips for Visiting Eau d'Heure lakes #

  • Drive into the main Lac de l'Eau d'Heure complex to reach the water-sports centre (boat rentals, diving centre) - it's easier than hunting for scattered car parks.
  • Bring a map of cycle routes: the lakes are joined by quiet roads and dedicated bike paths that make a single loop practical for a day trip.
  • Book water‑based activities (diving, wakeboarding) in advance during July-August when operators are busiest.

Best Time to Visit Eau d'Heure lakes #

The Eau d'Heure lakes are Belgium's largest artificial lake complex in Wallonia - a collection of reservoirs and recreation sites that draw sailors, divers, and cyclists.

Summer
June-August · 18-26°C (64-79°F)
Warmest season; busy with swimmers, sailors, and water-sports schools.
Spring
April-May · 8-16°C (46-61°F)
Quieter and good for cycling the lakeside routes; wildflowers appear on the banks.
Autumn
September-October · 8-18°C (46-64°F)
Clear light and fewer crowds; brisk swims for the brave.

Weather & Climate near Eau d'Heure lakes #

Climate

Eau d'Heure lakes's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in August) and cold winters (coldest in January). Temperatures range from 0°C to 22°C. Moderate rainfall (830 mm/year), distributed fairly evenly throughout the year.

Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
38°
Warmest Month
-15°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 5°C and lows of 0°C. Moderate rainfall (71 mm) and mostly overcast skies.

44 Poor

Comfort

2°
Feels Like Cold
2°C
Temperature
0° – 5°
95%
Humidity
Very Humid

Weather

71 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.4h daylight

February

February is cold with highs of 6°C and lows of 0°C. Moderate rainfall (59 mm) and mostly overcast skies.

46 Poor

Comfort

3°
Feels Like Cold
3°C
Temperature
-1° – 6°
92%
Humidity
Very Humid

Weather

59 mm
Rainfall
4.4 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.9h daylight

March

March is cold with highs of 9°C and lows of 2°C. Moderate rainfall (71 mm) and mostly overcast skies.

54 Acceptable

Comfort

6°
Feels Like Cold
6°C
Temperature
2° – 9°
87%
Humidity
Very Humid

Weather

71 mm
Rainfall
4.4 m/s
Wind
Light Breeze
0.4
UV Index
Low
11.7h daylight

April

April is cold with highs of 12°C and lows of 4°C. Moderate rainfall (60 mm) and partly cloudy skies.

58 Acceptable

Comfort

8°
Feels Like Cold
8°C
Temperature
4° – 12°
81%
Humidity
Very Humid

Weather

60 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
13.6h daylight

May

May is cool with highs of 17°C and lows of 7°C. Moderate rainfall (68 mm) and mostly overcast skies.

64 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
7° – 17°
80%
Humidity
Very Humid

Weather

68 mm
Rainfall
3.7 m/s
Wind
Light Breeze
1.1
UV Index
High
15.3h daylight

June

June is cool with highs of 20°C and lows of 10°C. The wettest month with 79 mm of rain and mostly overcast skies.

62 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
10° – 20°
80%
Humidity
Very Humid

Weather

79 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.4
UV Index
High
16.2h daylight

July

July is cool with highs of 22°C and lows of 12°C. Moderate rainfall (71 mm) and partly cloudy skies.

78 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° – 22°
78%
Humidity
Very Humid

Weather

71 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.3
UV Index
High
15.7h daylight

August

August is cool with highs of 22°C and lows of 12°C. Moderate rainfall (61 mm) and mostly overcast skies.

74 Very Good

Comfort

17°
Feels Like Cool
17°C
Temperature
12° – 22°
79%
Humidity
Very Humid

Weather

61 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.1
UV Index
High
14.3h daylight

September

September is cool with highs of 18°C and lows of 9°C. Moderate rainfall (65 mm) and partly cloudy skies.

68 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
9° – 18°
81%
Humidity
Very Humid

Weather

65 mm
Rainfall
3.5 m/s
Wind
Light Breeze
0.7
UV Index
Moderate
12.5h daylight

October

October is cool with highs of 14°C and lows of 6°C. Moderate rainfall (70 mm) and mostly overcast skies.

56 Acceptable

Comfort

10°
Feels Like Cool
10°C
Temperature
6° – 14°
88%
Humidity
Very Humid

Weather

70 mm
Rainfall
3.9 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.6h daylight

November

November is cold with highs of 8°C and lows of 3°C. Moderate rainfall (77 mm) and mostly overcast skies.

44 Poor

Comfort

6°
Feels Like Cold
6°C
Temperature
3° – 9°
93%
Humidity
Very Humid

Weather

77 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.1
UV Index
Low
8.8h daylight

December

December is cold with highs of 6°C and lows of 1°C. Moderate rainfall (78 mm) and mostly overcast skies.

42 Poor

Comfort

4°
Feels Like Cold
4°C
Temperature
1° – 6°
95%
Humidity
Very Humid

Weather

78 mm
Rainfall
4.6 m/s
Wind
Light Breeze
0.0
UV Index
Low
7.9h daylight

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