Cagnes-sur-Mer is a commune in southeastern
France on the shores of the
Mediterranean Sea between
Saint-Laurent-du-Var and
Villeneuve-Loubet. The largest suburb of
Nice, it stretches along a cove offering nearly of beach and is surrounded by hills, including that of the castle, which rises to above sea level. The municipality covers an area of 1,795 hectares; the elevation ranges from 0 to 187 meters. It is classified as seismic zone 4 (moderate seismicity) and some earthquakes are felt in Cagnes-sur-Mer.
Hydrography A coastal river and its main tributary run through the town: the Cagne and the Malvan. The Loup river also borders the commune and, in some places, forms the boundary with the commune of Villeneuve-Loubet.
Climate In 2010, the municipality’s climate was classified as
Mediterranean climate, according to a study by the
National Center for Scientific Research based on a method combining climate data and environmental factors (topography, land use, etc.) and data covering the period 1971–2000. In 2020, the climate was classified as Csa (a temperate climate with hot, dry summers), according to the
Köppen-Geiger classification for the period 1988–2017. Also in 2020,
Météo-France published a new
climate typology for metropolitan France which classified the commune within the Mediterranean climate as part of the climatic region Var, Alpes-Maritimes, which is characterized by heavy rainfall in autumn and winter (250-300mm in autumn), abundant sunshine in summer (>75% solar insolation), a mild winter (8°C), and little fog. For the period 1971–2000, the average annual temperature was 15.8°C, with an annual temperature range of 0°C. The average annual precipitation was 834 mm, with 6.5 days of precipitation in January and 2.1 days in July. The highest temperature recorded at this station is 38.5 °C, reached on July 17, 2003; the lowest temperature is −4.4 °C, reached on March 1, 2005 (based on data collected between July 1, 1988 and October 2, 2025). ==History==