Överkalix is a locality and the seat of Överkalix Municipality in Norrbotten County, Sweden with 975 inhabitants in 2010.ClimateÖverkalix has a subarctic climate with significant temperature differences between the warm short summers and the long and cold winters. Its inland position close to sea level ensures Överkalix is more prone to heatwaves than other areas of Norrbotten. Its July temperatures are also due to the perpetual daylight due to its position just below the arctic circle. This results in July being warmer than other European cities as far south as Manchester and Dublin in the British Isles. However, temperatures fall quickly once daylight diminishes, but winters are still warmer than other parts of the world at similar parallels due to mild North Atlantic air. The climate is quite dry for Scandinavia, with average rainfall being at.Buildings and structures 330 metres tall guyed mast for FM-/TV-broadcasting at 66°18'5" N, 22°51'13" EIn FilmÖverkalix was used as location for the Swedish films Frostbite and False Trail.