Four different seasons are found in the country with warm and dry summers and moderately cold and snowy winters. The range of temperatures recorded throughout the year ranges from  in winter, to  in summer. Low winter temperatures are influenced by winds from the north while heat seasons during summer arise due to the subtropical pressure of the Aegean Sea and climate influences from the Middle East, with the latter causing dry periods. There are three main climatic zones in the country: mildly continental in the north, temperate Mediterranean in the south and mountainous in the zones with high altitude. Along the valleys of the Vardar and Strumica rivers, in the regions of Gevgelija, Valandovo, Dojran, Strumica, and Radoviš, the climate is temperate Mediterranean. The warmest regions are Demir Kapija and Gevgelija, where the temperature in July and August frequently exceeds .