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L'Île-d'Yeu
L'Île-d'Yeu
Commune
	A satellite image of the island
	Coat of arms
	Location of L'Île-d'Yeu
	L'Île-d'Yeu L'Île-d'Yeu
	Coordinates: 46°43′30″N 2°20′49″W / 46.725°N 2.347°W
Country	France
Region	Pays de la Loire
Department	Vendée
Arrondissement	Les Sables-d'Olonne
Canton	L'Île-d'Yeu
Government
• Mayor (2023–2026)	Carole Charuau
Area 1	23.32 km2 (9.00 sq mi)
Population (2019)	4,850
• Density	210/km2 (540/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	85113 /85350
Elevation	0–32 m (0–105 ft) ; (avg. 20 m or 66 ft)
	1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Île d'Yeu (French pronunciation: [il djø]) or L'Île-d'Yeu, is an island and commune just off the Vendée coast of western France. The island's two harbors, Port-Joinville in the north and Port de la Meule to the south, in a rocky inlet of the southern granite coast, are famous for tuna and lobster fishing, respectively.

Administratively, the commune of L'Île-d'Yeu is part of the Vendée department and the Pays de la Loire region of France.

History

Neolithic markings in the native stone and an unusual concentration of megalithic dolmens and menhirs attest to the island's early sanctity.

Irish monks from Bangor, County Down, dedicated their monastery on the Île d'Yeu to Hilaire; Saint Amand from Poitou received early training there, but it was destroyed by Viking raiders in the ninth century. During the tenth century, monks from Marmoutier near Tours and monks of Saint-Cyprien at Poitiers built a new monastery and dedicated it to Saint Stephen.

A wooden stockade was built by the lords of Belleville to protect their maritime commerce in the area from pirates but this was eventually demolished and a stone castle built by Jeanne de Belleville and improved by her husband Olivier IV de Clisson. The castle built on an islet linked to the coast by a bridge is first mentioned in 1356.

Since the nineteenth century Île d'Yeu has attracted many artists. Jean Rigaud (1912–1999), official painter to the French Navy, had a house there, as did Maurice Boitel (1919–2007). Jean Dufy (1888–1964) made about twenty paintings of l'Ile d'Yeu during several summer stays between 1926 and 1930.^{[citation needed]}

Philippe Pétain, the proclaimed hero of Verdun during World War I who later became the leader of France's wartime collaborationist Vichy régime, was sentenced to life imprisonment for treason on Île d'Yeu. He died in a private home in Port-Joinville in 1951, and is buried in the local cemetery (Cimetière communal de Port-Joinville).^[3]

The poet Marc-Adolphe Guégan, an early French exponent of haiku, lived on the island until his death in 1959.^[4]

The island's seaweeds have been the subject of studies by the French marine biologist Françoise Ardré.^[5]

The children's author Ludwig Bemelmans, who summered on the island, took inspiration from a hospital stay after a bicycle crash for his first Madeline book, published in 1939.

A two year pilot program, called Harmon'Yeu, was initiated in the spring of 2020 to interconnect 23 houses in the Ker Pissot neighborhood and surrounding areas with a microgrid that was automated as a smart grid with software from Engie. Sixty-four solar panels with a peak capacity of 23.7 kW were installed on five houses and a battery with a storage capacity of 15 kWh was installed on one house. Six houses store excess solar energy in their hot water heaters. A dynamic system apportions the energy provided by the solar panels and stored in the battery and hot water heaters to the system of 23 houses. The smart grid software dynamically updates energy supply and demand in five minute intervals, deciding whether to pull energy from the battery or from the panels and when to store it in the hot water heaters. This pilot program was the first such project in France.^[6]^[7]

Population

Historical population
Year	Pop.	±% p.a.
1968	4,786	—
1975	4,766	−0.06%
1982	4,880	+0.34%
1990	4,941	+0.16%
1999	4,788	−0.35%
2007	4,906	+0.30%
2012	4,575	−1.39%
2017	4,809	+1.00%
Source: INSEE^[8]

Transport

The island is reached by ferry from Fromentine or Saint-Gilles-Croix-de-Vie. Air transportation is available at Île d'Yeu Aerodrome (IATA: IDY, ICAO: LFEY), with commercial service from Nantes Airport.

Climate

Île d'Yeu has an oceanic climate (Köppen: Cfb) with mild weather year-round and significantly more precipitation in winter than in summer.

Comparison of local Meteorological data with other cities in France^[9]
Town	Sunshine (hours/yr)	Rain (mm/yr)	Snow (days/yr)	Storm (days/yr)	Fog (days/yr)
National average	1,973	770	14	22	40
Île d'Yeu	N/A	762.4	1.9	7.9	21.5^[10]
Paris	1,661	637	12	18	10
Nice	2,724	767	1	29	1
Strasbourg	1,693	665	29	29	56
Brest	1,605	1,211	7	12	75

Climate data for Île d'Yeu (1981−2010 normals, extremes 1949−present)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	15.4 (59.7)	17.4 (63.3)	23.1 (73.6)	26.3 (79.3)	30.6 (87.1)	35.2 (95.4)	34.8 (94.6)	35.1 (95.2)	32.9 (91.2)	26.0 (78.8)	20.1 (68.2)	16.8 (62.2)	35.2 (95.4)
Mean daily maximum °C (°F)	9.7 (49.5)	9.9 (49.8)	12.2 (54.0)	14.4 (57.9)	17.6 (63.7)	20.5 (68.9)	22.6 (72.7)	22.9 (73.2)	20.9 (69.6)	17.2 (63.0)	13.2 (55.8)	10.4 (50.7)	16.0 (60.8)
Daily mean °C (°F)	7.5 (45.5)	7.4 (45.3)	9.4 (48.9)	11.2 (52.2)	14.3 (57.7)	17.1 (62.8)	19.0 (66.2)	19.3 (66.7)	17.4 (63.3)	14.5 (58.1)	10.8 (51.4)	8.2 (46.8)	13.0 (55.4)
Mean daily minimum °C (°F)	5.3 (41.5)	4.8 (40.6)	6.5 (43.7)	8.0 (46.4)	11.1 (52.0)	13.7 (56.7)	15.5 (59.9)	15.6 (60.1)	13.9 (57.0)	11.8 (53.2)	8.4 (47.1)	6.0 (42.8)	10.1 (50.2)
Record low °C (°F)	−9.8 (14.4)	−9.4 (15.1)	−7.1 (19.2)	0.0 (32.0)	2.8 (37.0)	5.4 (41.7)	9.1 (48.4)	10.0 (50.0)	5.5 (41.9)	1.8 (35.2)	−3.5 (25.7)	−7.9 (17.8)	−9.8 (14.4)
Average precipitation mm (inches)	83.7 (3.30)	62.3 (2.45)	57.9 (2.28)	57.8 (2.28)	57.7 (2.27)	40.0 (1.57)	38.0 (1.50)	36.9 (1.45)	61.9 (2.44)	91.9 (3.62)	91.6 (3.61)	90.1 (3.55)	769.8 (30.31)
Average precipitation days (≥ 1.0 mm)	13.2	10.3	10.4	10.1	9.4	6.7	7.3	6.2	8.1	12.3	13.5	13.9	121.3
Average relative humidity (%)	88	87	84	83	84	82	81	82	83	86	86	88	84.5
Mean monthly sunshine hours	74.7	111.2	149.2	201.3	231.2	252.5	274.7	260.3	195.5	137.6	94.0	72.1	2,053.8
Source 1: Meteo France^[11]^[12]^[13]
Source 2: Infoclimat.fr (humidity, 1961–1990)^[14]^[15]^[16]