Val Müstair (German: Münstertal) is a municipality in the Engiadina Bassa/Val Müstair Region in the Swiss canton of Graubünden. It was formed on 1 January 2009 through the merger of Tschierv, Fuldera, Lü, Valchava, Santa Maria Val Müstair and Müstair.

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Quick Facts Country, Canton ...

Val Müstair
Municipality
Flag Coat of arms
Location of Val Müstair
Val Müstair Show map of Switzerland Val Müstair Show map of Canton of Graubünden
Coordinates: 46°36′N 10°25′E
Country	Switzerland
Canton	Graubünden
District	Engiadina Bassa/Val Müstair
Area [1]
• Total	198.65 km2 (76.70 sq mi)
Population  (2021-03-30)[2]
• Total	1,435
• Density	7.2/km2 (19/sq mi)
Time zone	UTC+01:00 (Central European Time)
• Summer (DST)	UTC+02:00 (Central European Summer Time)
Postal code(s)	7537
SFOS number	3847
ISO 3166 code	CH-GR
Surrounded by	Tschierv, Fuldera, Lü, Valchava, Santa Maria Val Müstair and Müstair.
Website	www.cdvm.ch SFSO statistics

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Val Müstair has a population (as of 31 December 2020) of 1,423.^[3]

The Val Müstair (German: Münstertal, Italian: Val Monastero) is a mountain valley in the Swiss Alps. It connects the Fuorn Pass, (2,149 m (7,051 ft)) with the Italian province of South Tyrol and the Vinschgau (914 m (2,999 ft)).

The Benedictine Convent of Saint John at Müstair (monastery), a World Heritage Site, was probably founded by Charlemagne, sharing history with its neighbor, the Marienberg Abbey.

The most important villages in the Val Müstair are: Tschierv (1,660 m (5,450 ft)), Valchava (1,412 m (4,633 ft)), Sta. Maria (1,375 m (4,511 ft)), Müstair (1,247 m (4,091 ft)) (all Swiss) and Taufers im Münstertal in South Tyrol. There are no other inhabited connected valleys, but the road over the Umbrail Pass (and the Stelvio Pass) is connected with Sta. Maria.

The largest part of the valley is part of the Swiss canton of Graubünden. A small part lies within the Italian province of South Tyrol. The border is located at approximately 1245 meter between Müstair (1247 meter) and Taufers im Münstertal (1240 meter).

The river in the valley is the Rom (Il Rom or Rombach).

Contrary to the common notion, where the beginning of a valley is referred as the "upper valley" and the end as the "lower valley", in Val Müstair these are referred to as "inner" and "outer" respectively. This is often reflected in location names.

For instance, the valley is traditionally divided into three thirds:

• Terzal d'Aint (inner third) with Tschierv, Fuldera and Lü
• Terzal d'Immez (middle third) with Valchava and Sta. Maria
• Terzal d'Oura (outer third) with Müstair

Incidentally, this division corresponds to the first three plateaus occurring on the Swiss part of the valley.

The majority of the population in the new municipality speaks Romansh, with a large German speaking minority. The following table lists the historical language distribution of the formerly independent municipalities and also for the combined municipality:

The Benedictine Convent of Saint John is both listed as a Swiss heritage site of national significance and a UNESCO World Heritage Site.^[4]

Müstair village has an average of 86.7 days of rain per year and on average receives 690 mm (27 in) of precipitation. The wettest month is August during which time Müstair receives an average of 86 mm (3.4 in) of precipitation. During this month there is precipitation for an average of 9.3 days. The month with the most days of precipitation is May, with an average of 10, but with only 80 mm (3.1 in) of precipitation. The driest month of the year is February with an average of 33 mm (1.3 in) of precipitation over 9.3 days.^[5]

The higher elevation village of Sta. Maria Val Müstair has an average of 94.6 days of rain per year and on average receives 801 mm (31.5 in) of precipitation. The wettest month is August during which time Sta. Maria Val Müstair receives an average of 105 mm (4.1 in) of precipitation. During this month there is precipitation for an average of 10.6 days. The driest month of the year is February with an average of 34 mm (1.3 in) of precipitation over 10.6 days.^[5]

There is a small amount of car parking in the village. It is the starting point for a number of hiking trails. Above Tschierv, at the mountain Minschuns, is a little ski resort. In 2009, during the International Year of Astronomy, a new public observatory Alpine Astrovillage Lü-Stailas was inaugurated. The center is equipped with robotic telescopes for direct observations, as well as for astrophotography. The equipment is also used to provide introductory courses for amateur astronomers. The Astrovillage is located on a terrace at an elevation of 2,000 m (6,400 ft).^[6]

Val Müstair has hosted several stages of the Tour de Ski, a cross-country skiing stage event.

Donna Leon, American crime novelist.