Hiraya, Nagano

 is a village located in Nagano Prefecture, Japan. , the village had an estimated population of 414 in 192 households, and a population density of 5.4 persons per km². The total area of the village is .
Geography.
Hiraya is located in mountainous southwestern Nagano Prefecture, surrounded by 1500 meter mountains, and bordered by Gifu Prefecture to the west. Hiraya is at an average altitude of 900 meters, and contains Mount Ōkawairi and the source of the Yahagi River.
Demographics.
Per Japanese census data, the population of Hiraya has decreased over the past 50 years.
Climate.
The village has a climate characterized by hot and humid summers, and cold winters (Köppen climate classification "Cfb"). The average annual temperature in Hiraya is 9.8 °C. The average annual rainfall is 2106 mm with September as the wettest month. The temperatures are highest on average in August, at around 21.8 °C, and lowest in January, at around -2.1 °C.
History.
The area of present-day Hiraya was part of ancient Shinano Province. The village of Namiai was established on April 1, 1889 by the establishment of the modern municipalities system. A portion of Namiai separated to become the village of Hiraya on April 1, 2006.
Economy.
The economy of Hiraya is based on tourism to its ski and hot spring resorts.
Education.
Hiraya has one public elementary school operated by the village government and one public middle school shared with the neighbouring village of Achi. The village does not have a high school.