Lai da Marmorera

Monastery Reservoir lake in Grisons, created by hydroelectric dam

Lai da Marmorera is a reservoir in Graubünden created by a dam near the village of Marmorera; hikers use surrounding trails and the lake sits on routes crossing the Albula valley.

Main image

Lai da Marmorera is an artificial reservoir in the canton of Graubünden (Grisons), Switzerland, formed by the Marmorera dam. The reservoir occupies a valley near the village of Marmorera in the Surses area.

The lake and surrounding shoreline are used for walking, local recreation and alpine views; paths around the reservoir allow short hikes and vantage points over the water. The most visible human feature is the dam at the outlet, which is integral to regional hydroelectric infrastructure.

The reservoir was created with the construction of the Marmorera dam; when the dam filled in the mid-20th century the original village of Marmorera was inundated and its inhabitants were relocated to a new settlement built above the reservoir.

The lake lies adjacent to the village of Marmorera in the Surses region of Graubünden, accessible from local mountain roads and situated within the highland valleys of eastern Switzerland.

  • Dam completion and village relocation: The dam was completed in 1954, creating the reservoir and leading to the inundation and relocation of the original village of Marmorera.

What to See #

  • Marmorera dam: The concrete gravity dam completed in 1954 that impounds the reservoir and supplies hydroelectric power.
  • Submerged old village site: The site of the former village that was inundated when the reservoir filled; the original village was relocated to higher ground and a new Marmorera was built nearby.
Lai da Marmorera
46.4997, 9.6369

How to Get to Lai da Marmorera #

Lai da Marmorera is reached via the Julier Pass road (Route 3) in Graubünden. From Savognin or Bivio the dam is a short drive; in summer the pass provides straightforward access by car. Local buses serve nearby villages seasonally.

Tips for Visiting Lai da Marmorera #

  • Visit the dam viewpoint for the surreal sight of the post-war modern village perched above the buried older settlement.
  • Combine the visit with the Surses valley drive; the Julier Pass road provides dramatic alpine scenery en route.
  • Respect private property: some lakeside paths cross private land, so stick to marked public trails.

Best Time to Visit Lai da Marmorera #

Summer through early autumn is the most straightforward for road access and walking; winter creates a different, snow-sculpted experience.

Summer
June-September · 5-20°C
Alpine access roads open, walking and boating conditions favourable.
Winter-Spring
December-April · -10-5°C
Snowbound scenery; winter sports in nearby resorts-roads may be closed periodically.

Weather & Climate near Lai da Marmorera #

Climate

Lai da Marmorera's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -11°C to 18°C. Abundant rainfall (1152 mm/year), wettest in August.

Air Quality: AQI 37 Good
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-35°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 0°C and lows of -11°C. Moderate rainfall (62 mm) and partly cloudy skies.

38 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-11° -1°
90%
Humidity
Very Humid

Weather

62 mm
Rainfall
2.4 m/s
Wind
Calm
0.2
UV Index
Low
8.9h daylight

February

February is freezing with highs of 0°C and lows of -11°C. Moderate rainfall (46 mm) and partly cloudy skies.

40 Poor

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-11°
92%
Humidity
Very Humid

Weather

46 mm
Rainfall
2.6 m/s
Wind
Calm
0.3
UV Index
Low
10.2h daylight

March

March is freezing with highs of 3°C and lows of -7°C. Moderate rainfall (64 mm) and partly cloudy skies.

46 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-7°
93%
Humidity
Very Humid

Weather

64 mm
Rainfall
2.8 m/s
Wind
Calm
0.7
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 6°C and lows of -4°C. Regular rainfall (89 mm) and mostly overcast skies.

41 Poor

Comfort

Feels Like Cold
C
Temperature
-4°
87%
Humidity
Very Humid

Weather

89 mm
Rainfall
2.9 m/s
Wind
Calm
1.0
UV Index
High
13.4h daylight

May

May is cold with highs of 11°C and lows of 1°C. Significant rainfall (115 mm) and mostly overcast skies.

49 Poor

Comfort

Feels Like Cold
C
Temperature
11°
81%
Humidity
Very Humid

Weather

115 mm
Rainfall
2.7 m/s
Wind
Calm
1.3
UV Index
High
14.8h daylight

June

June is cold with highs of 15°C and lows of 4°C. Significant rainfall (132 mm) and mostly overcast skies.

47 Poor

Comfort

Feels Like Cold
C
Temperature
15°
79%
Humidity
Very Humid

Weather

132 mm
Rainfall
2.6 m/s
Wind
Calm
1.7
UV Index
Very High
15.6h daylight

July

July is cool with highs of 18°C and lows of 6°C. Significant rainfall (128 mm) and partly cloudy skies.

61 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
18°
79%
Humidity
Very Humid

Weather

128 mm
Rainfall
2.5 m/s
Wind
Calm
1.7
UV Index
Very High
15.2h daylight

August

August is cool with highs of 17°C and lows of 6°C. The wettest month with heavy rain (134 mm) and partly cloudy skies.

61 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
81%
Humidity
Very Humid

Weather

134 mm
Rainfall
2.4 m/s
Wind
Calm
1.4
UV Index
High
14.0h daylight

September

September is cold with highs of 14°C and lows of 3°C. Significant rainfall (125 mm) and partly cloudy skies.

51 Acceptable

Comfort

Feels Like Cold
C
Temperature
14°
83%
Humidity
Very Humid

Weather

125 mm
Rainfall
2.4 m/s
Wind
Calm
1.0
UV Index
Moderate
12.4h daylight

October

October is cold with highs of 9°C and lows of -1°C. Significant rainfall (110 mm) and partly cloudy skies.

51 Acceptable

Comfort

Feels Like Cold
C
Temperature
-1°
86%
Humidity
Very Humid

Weather

110 mm
Rainfall
2.4 m/s
Wind
Calm
0.5
UV Index
Low
10.7h daylight

November

November is freezing with highs of 3°C and lows of -6°C. Regular rainfall (85 mm) and partly cloudy skies.

44 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-6°
90%
Humidity
Very Humid

Weather

85 mm
Rainfall
2.5 m/s
Wind
Calm
0.2
UV Index
Low
9.3h daylight

December

December is freezing with highs of 0°C and lows of -10°C. Moderate rainfall (62 mm) and partly cloudy skies.

38 Poor

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-10°
89%
Humidity
Very Humid

Weather

62 mm
Rainfall
2.4 m/s
Wind
Calm
0.1
UV Index
Low
8.5h daylight

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