Winters in Saijo are mild, with temperatures rarely dropping below freezing and averaging around 6-9°C. Spring brings a gradual warming trend, with temperatures rising steadily from March's average of 13°C to April's peak of 26°C. Summers are hot and humid, with July and August often seeing highs above 35°C. Autumn is pleasant, with comfortable temperatures returning in September, but dropping again in November before the winter chill sets in.