Rostrenen (French pronunciation: [ʁɔstʁənɛ̃]; Breton: Rostrenenn) is a commune in the Côtes-d'Armor department and Brittany region of northwestern France.

Rostrenen
Rostrenenn
The church of Notre-Dame du Roncier in Rostrenen
The church of Notre-Dame du Roncier in Rostrenen
Flag of Rostrenen
Coat of arms of Rostrenen
Location of Rostrenen
Map
Rostrenen is located in France
Rostrenen
Rostrenen
Rostrenen is located in Brittany
Rostrenen
Rostrenen
Coordinates: 48°14′14″N 3°18′56″W / 48.2372°N 3.3155°W / 48.2372; -3.3155
CountryFrance
RegionBrittany
DepartmentCôtes-d'Armor
ArrondissementGuingamp
CantonRostrenen
IntercommunalityKreiz-Breizh
Government
 • Mayor (2020–2026) Guillaume Robic[1]
Area
1
32.17 km2 (12.42 sq mi)
Population
 (2021)[2]
3,207
 • Density100/km2 (260/sq mi)
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
22266 /22110
Elevation152–262 m (499–860 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Geography

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Neighbouring communes

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Rostrenen is border by Mellionnec to the south, Plouguernevel to the east, Kergrist-Moëlou to the north, and Glomel to the west.

Climate

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Rostrenen has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Rostrenen is 10.7 °C (51.3 °F). The average annual rainfall is 1,145.7 mm (45.11 in) with January as the wettest month. The temperatures are highest on average in August, at around 17.0 °C (62.6 °F), and lowest in January, at around 5.2 °C (41.4 °F). The highest temperature ever recorded in Rostrenen was 37.9 °C (100.2 °F) on 9 August 2003; the coldest temperature ever recorded was −13.9 °C (7.0 °F) on 20 January 1963.

Climate data for Rostrenen (1981–2010 averages, extremes 1954−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 15.8
(60.4)
21.3
(70.3)
24.1
(75.4)
27.2
(81.0)
28.5
(83.3)
33.9
(93.0)
35.1
(95.2)
37.9
(100.2)
32.3
(90.1)
27.8
(82.0)
19.2
(66.6)
16.0
(60.8)
37.9
(100.2)
Mean daily maximum °C (°F) 7.6
(45.7)
8.1
(46.6)
10.8
(51.4)
12.9
(55.2)
16.2
(61.2)
19.4
(66.9)
21.4
(70.5)
21.5
(70.7)
19.0
(66.2)
14.9
(58.8)
10.8
(51.4)
8.1
(46.6)
14.3
(57.7)
Daily mean °C (°F) 5.2
(41.4)
5.3
(41.5)
7.4
(45.3)
9.0
(48.2)
12.2
(54.0)
14.9
(58.8)
17.0
(62.6)
17.0
(62.6)
15.0
(59.0)
11.7
(53.1)
8.1
(46.6)
5.7
(42.3)
10.7
(51.3)
Mean daily minimum °C (°F) 2.7
(36.9)
2.5
(36.5)
4.0
(39.2)
5.1
(41.2)
8.1
(46.6)
10.5
(50.9)
12.5
(54.5)
12.5
(54.5)
10.9
(51.6)
8.5
(47.3)
5.3
(41.5)
3.3
(37.9)
7.2
(45.0)
Record low °C (°F) −13.9
(7.0)
−12.0
(10.4)
−7.9
(17.8)
−3.2
(26.2)
−0.2
(31.6)
2.9
(37.2)
5.9
(42.6)
5.6
(42.1)
3.0
(37.4)
−1.9
(28.6)
−5.2
(22.6)
−9.6
(14.7)
−13.9
(7.0)
Average precipitation mm (inches) 137.3
(5.41)
104.9
(4.13)
92.3
(3.63)
82.2
(3.24)
85.3
(3.36)
55.0
(2.17)
63.1
(2.48)
58.5
(2.30)
83.3
(3.28)
126.2
(4.97)
120.6
(4.75)
137.0
(5.39)
1,145.7
(45.11)
Average precipitation days (≥ 1.0 mm) 16.6 13.7 13.8 12.6 11.6 8.8 9.6 9.5 10.6 15.1 15.5 16.2 153.6
Mean monthly sunshine hours 60.4 76.9 117.1 146.5 173.0 195.8 175.5 167.8 157.2 99.0 73.4 61.5 1,504.2
Source: Météo France[3]

Population

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In French the inhabitants of Rostrenen are known as Rostrenois.

Historical population
YearPop.±% p.a.
1968 3,658—    
1975 3,875+0.83%
1982 3,868−0.03%
1990 3,664−0.67%
1999 3,616−0.15%
2007 3,392−0.80%
2012 3,256−0.82%
2017 3,060−1.23%
Source: INSEE[4]
Topographic map

Breton language

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On 13 September 2004 the municipality launched a linguistic plan as part of the Ya d'ar brezhoneg (Yes to Breton) campaign. In 2008, 34.5% of primary children attended bilingual schools.[5]

 
The former railway station (1898–1967)

See also

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References

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  1. ^ "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 13 September 2022.
  2. ^ "Populations légales 2021" (in French). The National Institute of Statistics and Economic Studies. 28 December 2023.
  3. ^ "Climate of Rostrenen 1981-2010" (PDF) (in French). Météo-France. Retrieved 19 June 2022.
  4. ^ Population en historique depuis 1968, INSEE
  5. ^ (in French) Ofis ar Brezhoneg: Enseignement bilingue
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