Winters in Miyoshi are cold, with temperatures often below freezing, but can occasionally rise into the mid-teens. As spring approaches, temperatures gradually warm up, reaching averages around 14°C by April and continuing to climb throughout May and June, when highs reach the low-to-mid 30s. Summers are hot and humid, with July and August experiencing peak temperatures often above 34°C. Autumn brings a welcome cooling trend, with temperatures dropping back down into the mid-teens by November, only to rise again in December, which is similar to winter conditions.