Sunwu County is a county under the administration of Heihe City in the north of Heilongjiang province, China, situated on the bank of Amur River, which demarcates the Sino-Russian border. The length of border line within Sunwu county is 36 km. Sunwu County is surrounded by Lesser Khingan Mountains, and its forest coverage is 45%. The urbanization level is 40%.

Geography and climate

Sunwu County has a monsoon-influenced humid continental climate (Köppen Dwb) with very warm, humid summers and severely cold, extremely dry winters. The monthly 24-hour average temperature ranges from −23.3 °C in January to 20.4 °C, while the annual mean is +0.18 °C. More than three-fourths of the annual precipitation occurs from June to September. With monthly percent possible sunshine ranging from 52% in July to 73% in February, the area receives 2,576 hours of bright sunshine annually.

Administrative divisions

There are two towns and nine townships in the county: Towns: Townships:

Transport