Hakodate experiences a continental climate with distinct seasonal variations. Winters are cold and snowy, with temperatures often below freezing, especially in January and February. As spring approaches, temperatures gradually warm up, with March and April seeing significant increases in average temperature. Summers are mild to hot, with July and August being the warmest months, while September marks a gentle decline back into milder temperatures. Autumn brings crisp air and cooler temperatures, followed by another cold winter.