Petroupoli's climate is characterized by a significant temperature fluctuation throughout the year. Winters are cool, with temperatures ranging from around -6°C in February to 24°C in January, averaging around 10-11°C. As spring approaches, temperatures gradually rise, reaching an average high of 14°C in April and 21°C in May. Summer is hot and dry, with temperatures often soaring above 40°C in June, July, and August, while autumn brings a welcome decrease in temperature, returning to cooler averages around 10-11°C by winter.