The Oyo River is a river in southern

Central Java Central Java ( id, Jawa Tengah) is a province of Indonesia, located in the middle of the island of Java. Its administrative capital is Semarang. It is bordered by West Java in the west, the Indian Ocean and the Special Region of Yogyakarta in t ...

and

Yogyakarta Yogyakarta (; jv, ꦔꦪꦺꦴꦒꦾꦏꦂꦠ ; pey, Jogjakarta) is the capital city of Special Region of Yogyakarta in Indonesia, in the south-central part of the island of Java. As the only Indonesian royal city still ruled by a monarchy, ...

, in the central south area of

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

island,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

.Kali Oyo
at Geonames.org (cc-by); Last updated 2013-06-04; Database dump downloaded 2015-11-27 It is a tributary of the

Opak River Opak River is a river in central south area of Java island, Indonesia. Hydrology It flows from its source on the slopes of Mount Merapi in the north, heading southward and passes the west side of 9th-century Prambanan temple compound, located t ...

. It was the river on which the historical palaces of Mataram were located -

Sultan Agung Sultan Anyakrakusuma is known as Sultan Agung ( jv, ꦱꦸꦭ꧀ꦠꦤ꧀ꦲꦒꦸꦁꦲꦢꦶꦥꦿꦧꦸꦲꦚꦏꦿꦏꦸꦱꦸꦩ, Sultan Agung Adi Prabu Anyakrakusuma) was the third Sultan of Mataram in Central Java ruling from 1613 to 1645. ...

's Karta palace, and his son's

Plered Plered (also Pleret) was the location of the palace of Amangkurat I of Mataram (1645–1677). Amangkurat moved the capital there from the nearby Karta in 1647. During the Trunajaya rebellion, the capital was occupied and sacked by the rebels, an ...

palace.

Geography

The river flows in the southwest area of Java with predominantly

tropical monsoon climate An area of tropical monsoon climate (occasionally known as a sub-equatorial, tropical wet climate or a tropical monsoon and trade-wind littoral climate) is a tropical climate sub-type that corresponds to the Köppen climate classification category ...

(designated as ''Am'' in the Köppen-Geiger climate classification). The annual average temperature in the area is 23 °C. The warmest month is October, when the average temperature is around 24 °C, and the coldest is January, at 22 °C. The average annual rainfall is 2970 mm. The wettest month is January, with an average of 537 mm rainfall, and the driest is September, with 22 mm rainfall.

References

External links

* Upstream coordinates:
About Oyo River
{{Rivers of Java Rivers of Yogyakarta Sleman Regency Landforms of the Special Region of Yogyakarta Rivers of Indonesia

Geography

See also

References

External links