Yasu, Japan experiences a temperate climate with distinct seasonal changes. Winters are chilly but mild, with temperatures ranging from around 0°C to 17°C on average, making them suitable for outdoor activities like skiing and hot springs. Spring is characterized by rapid warming, with temperatures rising from single digits in March to mid-twenties by April. Summers are warm and humid, with peak temperatures often reaching above 30°C in June and July. Autumn brings a slight cooling, with temperatures dropping back into the teens by October, before gradually warming up again for winter.