Merdrignac (French pronunciation: [mɛʁdʁiɲak]; Breton: Medrigneg) is a commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2025, the former commune of Saint-Launeuc was merged into Merdrignac.

The commune is listed as a Village étape.

Geography

The River Meu forms most of the commune's northern border.

Climate

Merdrignac has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Merdrignac is 11.5 °C (52.7 °F). The average annual rainfall is 931.5 mm (36.67 in) with December as the wettest month. The temperatures are highest on average in July, at around 17.9 °C (64.2 °F), and lowest in December, at around 5.5 °C (41.9 °F). The highest temperature ever recorded in Merdrignac was 39.2 °C (102.6 °F) on 5 August 2003; the coldest temperature ever recorded was −8.3 °C (17.1 °F) on 12 January 2010.

Climate data for Merdrignac (1981–2010 averages, extremes 1998−present)
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Record high °C (°F)17.7 (63.9)22.0 (71.6)23.5 (74.3)27.2 (81.0)30.5 (86.9)34.4 (93.9)36.4 (97.5)39.2 (102.6)31.7 (89.1)29.0 (84.2)20.3 (68.5)16.2 (61.2)39.2 (102.6)
Mean daily maximum °C (°F)8.6 (47.5)9.5 (49.1)12.1 (53.8)15.0 (59.0)18.4 (65.1)22.0 (71.6)23.3 (73.9)23.1 (73.6)21.1 (70.0)16.5 (61.7)11.8 (53.2)8.4 (47.1)15.8 (60.4)
Daily mean °C (°F)5.6 (42.1)6.2 (43.2)8.1 (46.6)10.2 (50.4)13.5 (56.3)16.6 (61.9)17.9 (64.2)17.8 (64.0)15.7 (60.3)12.4 (54.3)8.4 (47.1)5.5 (41.9)11.5 (52.7)
Mean daily minimum °C (°F)2.7 (36.9)3.0 (37.4)4.0 (39.2)5.5 (41.9)8.6 (47.5)11.2 (52.2)12.6 (54.7)12.5 (54.5)10.4 (50.7)8.4 (47.1)5.1 (41.2)2.7 (36.9)7.2 (45.0)
Record low °C (°F)−8.3 (17.1)−7.6 (18.3)−7.0 (19.4)−2.6 (27.3)−0.8 (30.6)3.0 (37.4)4.9 (40.8)5.5 (41.9)1.7 (35.1)−1.9 (28.6)−6.5 (20.3)−7.8 (18.0)−8.3 (17.1)
Average precipitation mm (inches)97.0 (3.82)73.9 (2.91)80.9 (3.19)64.9 (2.56)68.0 (2.68)40.0 (1.57)73.5 (2.89)56.8 (2.24)60.2 (2.37)104.6 (4.12)105.0 (4.13)106.7 (4.20)931.5 (36.67)
Average precipitation days (≥ 1.0 mm)15.012.612.811.311.16.89.87.98.113.614.514.9138.5
Source: Meteociel

Population

Inhabitants of Merdrignac are called merdrignaciens in French.

Historical population
YearPop.±% p.a.
19682,576
19752,704+0.70%
19822,780+0.40%
19902,791+0.05%
19992,830+0.15%
20072,921+0.40%
20122,895−0.18%
20172,930+0.24%
20233,139+1.15%
Source: INSEE

See also

External links