The climate is generally classed as continental, with rainfall concentrated in summer. Summer months are warm, but winter temperatures can fall as low as -30 degrees C. Late spring droughts are often followed by severe flooding. There are occasional typhoons during the early Autumn.
Mostly hills and mountains separated by deep, narrow valleys; coastal plains wide in west, discontinuous in east. Mountainous interior is isolated and sparsely populated.
In North Korea, the vast majority of people are Korean. There are also a few hundred foreigners to be found, however, most of them are fellow tourists. Because of the lack of immigration, North Korea is one of the most ethnically homogeneous nations on earth.