Koosugi, Japan's climate is characterized by a distinct seasonal pattern. Winters are cold and variable, with temperatures often dropping below freezing in January and December, but rising to mild highs in February. As spring approaches, temperatures gradually warm up, reaching comfortable levels by April and May, with highs sometimes soaring above 30°C. Summer months bring sweltering heatwaves, with July and August frequently seeing temperatures reach over 35°C. Autumn sees a welcome return to cooler conditions, with September and October experiencing mild temperatures, before the cycle begins anew in winter.