I. Coordinates
Located in Central Coast region of Vietnam, Thua Thien Hue province consists of mainland and territorial sea of East Sea continental shelf. Below is the coordinates of its mainland
- North pole: 160 44'30'' N and 107023'48'' E Giap Tay hamlet, Dien Huong commune, Phong Dien district.
- South pole: 15059'30'' N and 1070 41'52'' E, Thuong Nhat commune, Nam Dong district.
- West pole: 160 22'45'' N and 107 0 00'56'' E, Paré, Hong Thuy commune, A Luoi district.
- East pole: 16013'18'' N and 108 012'57'' E, the East of Son Cha island, Lang Co townlet, Phu Loc district.
2. Border and area
Thua Thien Hue shares border with Quang Tri province, Quang Nam province, Da Nang city, Lao People's Democracy Republic (81km long border with Laos) and the East Sea.
- In the North, from East to West, Thua Thien Hue has 111.671 long shared border with Hai Lang, Dakrong, Huong Hoa district, Quang Tri province.
- In the South, the province shares 56,66km long shared border with Hien district, Quang Nam province and 55, 82km long border with Hoa Vang district, Da Nang city.
- The West, provincial border (national border also) stretches from the North (the border of Thua Thien Hue, Quang Tri and Lao People's Democracy Republic) to the South (the border of Thua Thien Hue province, Quang Nam province and Lao People's Democracy Republic) is 87,97km in length.
- The East, Thua Thien Hue borders the East Sea. The total has 120km coastline.
- Continent area, ThuaThien Hue cover the area of 5025,30 km2 in West North - East South. The
- Internal waters area: 12 sea miles
- Exclusive economic zone is up to 200 sea mile from the baseline.
- An island called Son Cha is located in East sea continental shelf. It is about 600m from Khem sea gate. Despite its limited size (160 hectares), Son Cha plays an important role in socio-economic development, national defense of entire country in general and Thua Thien Hue in particular.
- Thua Thien Hue is located in important trans-North and South traffic axis, East-West corridor connecting Thailand - Laos and Vietnam through Road 9. Located in Central Vietnam, Thua Thien Hue is about 660km from Hanoi city and 1.080 km from Ho Chi Minh city.
- Thua Thien Hue has 120 km long coastal line. The province is home to Phu Bai airport, Thuan An port, especially Chan May bay which enable the province to construct a deep sea port. 1A high way and trans-Vietnam train ran across province.
3. Climate and weather
Located in tropical monsoon climate zone, Thua Thien Hue has 4 seasons spring, summer, autumn and winter. The average temperature in province is 25. The number of yearly sunny hour is 2000 hours. The best time for traveling is from November to April of the following year.
4. Terrain features
Thua Thien Hue has pretty clear hierarchical structure.
- Mountain terrain stretches from Viet-Laos border to Danang city and accounts for 1/4 area.
- Midland terrain accounts for 1/2 area. Its average height is less than 500m.
- Local delta is a typical delta which has sand dunes and lagoon. Delta area accounts for about 1,400 km2.
5. Tam Giang lagoon
- Tam Giang - Cau Hai lagoon stretches over 68 km across 04 districts: Phong Dien, Quang Dien, Phu Vang, Phu Loc and Huong Tra town with the area of 22,000 hectares.
- Regards to geographical side, the lagoon systems includes 4 lagoons from North to South i.e. Tam Giang lagoon; Sam lagoon; Ha Trung - Thuy Tu lagoon; Cau Hai lagoon.
- Tam Giang lagoons covers an area of 5.200 hectares from O Lau river to Huong river estuary. It joins sea via Thuan An gate.
- Sam lagoon is much smaller with the total area of 1,620 hectares. Unlike Tam Giang lagoon, Sam lagoon is not connected with the sea.
- Ha Trung-Thuy Tu lagoon is long and narrow with the area of 3,600 hectares. Similar to Sam lagoon, it is not connected with the East Sea.
- Cau Hai is the largest lagoon which covering the area of 11.200 hectares. Tu Hien gate connects Cau Hai lagoon and the East Sea.
6. River system
The total length of river, streams and dug river is 1.055km. Total basin area is up to 4.195km2. River density is about 0,3-1km/km2, and up to 1.5-2.5 km/km2 in some areas.
Rivers located in Thua Thien Hue province from the North to the South are
- O Lau river
- Huong river