Les Moutiers-en-Retz

Les Moutiers-en-Retz (French pronunciation: [le mutje ɑ̃ ʁɛ] (listen), literally Les Moutiers in Retz; Breton: Mousteroù-Raez) is a commune in the Loire-Atlantique department in western France.

Les Moutiers-en-Retz
Commune
Coat of arms
Location of Les Moutiers-en-Retz
Les Moutiers-en-Retz Show map of France Les Moutiers-en-Retz Show map of Pays de la Loire
Coordinates: 47°03′48″N 2°00′01″W / 47.063369°N 2.000159°W / 47.063369; -2.000159
Country	France
Region	Pays de la Loire
Department	Loire-Atlantique
Arrondissement	Saint-Nazaire
Canton	Pornic
Intercommunality	CA Pornic Agglo Pays de Retz
Government
• Mayor (2020–2026)	Pascale Briand^[1]
Area ^1	9.57 km^2 (3.69 sq mi)
Population  (Jan. 2020)^[2]	1,805
• Density	190/km^2 (490/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	44106 /44760
Elevation	0–39 m (0–128 ft)
^1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km^2 (0.386 sq mi or 247 acres) and river estuaries.

Climate

The climate which characterises the town was classified, in 2010, as a “frank oceanic climate” (French: climat océanique franc), according to the typology of climates of France [fr] which identified eight major types of climates in metropolitan France.^[3] In 2020, the town was classified as having an “oceanic climate” type using the classification established by Météo-France, which only has five main types of climates for mainland France. This type of climate is characterised by mild temperatures and relatively abundant rainfall (in conjunction with disturbances from the Atlantic), distributed throughout the year with a slight maximum from October to February.^[4]

The climatic parameters which made it possible to establish the 2010 typology include six variables for temperature and eight for precipitation, the values of which correspond to the monthly data for the 1971–2000 norm.^[5] The seven main variables characterising the municipality are presented in the box below.

Municipal climatic parameters over the period 1971–2000^[3] Average annual temperature: 12.3°C Number of days with a temperature below −5°C  : 1.1 days Number of days with a temperature above 30°C  : 3.3 days Annual thermal amplitude: 13°C^[Note 1] Annual cumulative precipitation: 714mm Number of days of precipitation in January: 12.1 days Number of days of precipitation in July: 6.1 days

These variables have evolved with climate change. A study carried out in 2014 by the General Directorate of Energy and Climate [fr],^[6] supplemented by regional studies,^[7] indeed predicts that the average temperature should increase and the average rainfall decrease, but with strong regional variations. These changes have been recorded on the nearest Météo-France meteorological station in Pornic, in service since 1919,^[8] 10km north of Moutiers-en-Retz, where the mean annual temperature is 13°C and the rainfall is 738.1 mm for the period 1981–2010.^[9] At the next closest historical meteorological station, "Nantes-Bouguenais", 31 km east inland of Moutiers-en-Retz in the town of Bouguenais, operational since 1945, the annual average temperature changes by 12.2 °C for the period 1971–2000,^[10] 12.5 °C for 1981–2010, then 12.7 °C for 1991–2020.^[11]

Population

Historical population

Year Pop. ±% 1793 1,900 —     1806 1,461 −23.1% 1821 1,676 +14.7% 1831 1,718 +2.5% 1841 1,692 −1.5% 1851 1,755 +3.7% 1861 1,699 −3.2% 1872 732 −56.9% 1881 690 −5.7% 1891 800 +15.9% 1901 796 −0.5% 1911 758 −4.8%

Year Pop. ±% 1921 680 −10.3% 1931 651 −4.3% 1946 659 +1.2% 1954 628 −4.7% 1962 654 +4.1% 1968 614 −6.1% 1975 635 +3.4% 1982 693 +9.1% 1990 739 +6.6% 1999 908 +22.9% 2009 1,293 +42.4% 2017 1,640 +26.8%

Transport

Les Moutiers-en-Retz station is served by train services between Pornic and Nantes.

See also

• Communes of the Loire-Atlantique department

Notes

1. Annual thermal amplitude measures the difference between the average temperature of July and January. This variable is generally recognised as a discriminating criterion between oceanic and continental climates.

References

1. "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 13 September 2022.
2. "Populations légales 2020". The National Institute of Statistics and Economic Studies. 29 December 2022.
3. Joly, Daniel; Brossard, Thierry; Cardot, Hervé; Cavailhes, Jean; Hilal, Mohamed; Wavresky, Pierre (18 June 2010). "Les types de climats en France, une construction spatiale" [Climate types in France, a spatial construction]. Cybergéo, revue européenne de géographie - European Journal of Geography (in French) (501). doi:10.4000/cybergeo.23155.
4. "Le climat en France métropolitaine" [The climate in metropolitan France] (in French). 4 February 2020. Retrieved 16 July 2021.
5. "Définition d'une normale climatologique" [Definition of a climatological norm] (in French). Retrieved 16 July 2021.
6. "Le climat de la France au XXIe siècle - Volume 4 - Scénarios régionalisés : édition 2014 pour la métropole et les régions d'outre-mer" [The climate of France in the 21st century - Volume 4 - Regionalized scenarios: 2014 edition for metropolitan France and overseas regions] (PDF) (in French). Direction générale de l'Énergie et du Climat. Retrieved 12 June 2021..
7. "Observatoire régional sur l'agriculture et le changement climatique (ORACLE) - Pays de la Loire" [Regional Observatory on Agriculture and Climate Change (ORACLE) - Pays de la Loire] (PDF) (in French). Pays de la Loire Chambers of Agriculture. 2018. Retrieved 16 July 2021.
8. "Station Météo-France Pornic - métadonnées" (PDF). Météo-France. Retrieved 16 July 2021.
9. "Station Météo-France Pornic - fiche climatologique - statistiques 1981-2010 et records" (PDF) (in French). Météo-France. Retrieved 16 July 2021..
10. "Station météorologique de Nantes-Bouguenais - Normales pour la période 1971-2000" [Nantes-Bouguenais meteorological station - Norms for the period 1971-2000] (in French). www.infoclimat.fr. Retrieved 16 July 2021.
11. "Station météorologique de Nantes-Bouguenais - Normales pour la période 1991-2020" [Nantes-Bouguenais meteorological station - Norms for the period 1991-2020] (in French). www.infoclimat.fr/. Retrieved 16 July 2021.

 

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