It is approximately 50 miles (80 km) east of St. Malo and a similar distance northeast of Rennes. A medieval tower in the town centre, the only remainder of the old church, contains frescos by painter Marthe Flandrin.[5]
Geography
Climate
Saint-Hilaire-du-Harcouët has an oceanic climate (Köppen climate classificationCfb). The average annual temperature in Saint-Hilaire-du-Harcouët is 11.4 °C (52.5 °F). The average annual rainfall is 947.2 mm (37.29 in) with December as the wettest month. The temperatures are highest on average in July, at around 18.1 °C (64.6 °F), and lowest in December, at around 5.2 °C (41.4 °F). The highest temperature ever recorded in Saint-Hilaire-du-Harcouët was 37.5 °C (99.5 °F) on 7 August 2020; the coldest temperature ever recorded was −12.0 °C (10.4 °F) on 2 January 1997.
Climate data for Saint-Hilaire-du-Harcouët (1991–2020 normals, extremes 1991–present)