Winters in Kuwana are typically cool, with temperatures often below freezing and occasional warmer days. Spring brings a gradual warming trend, with temperatures rising steadily throughout the month of March and into April. Summer is hot and humid, with temperatures frequently reaching above 30°C from June to August. Autumn is mild, with temperatures cooling gradually over September and October before dropping back down in November. Overall, temperature fluctuations are relatively moderate throughout the year, with few extreme variations.