# Đông Hà

Đông Hà (listen) is the capital of Quảng Trị Province, Vietnam. Đông Hà is situated at the crossroads of National Highway 1A and Route 9, part of the East–West Economic Corridor (EWEC). It lies on the North–South Railway (Reunification Express) and is served by Đông Hà Railway Station. EWEC is an economic development program which includes northeast Thailand, Southern Laos, and central Vietnam.

## History

The city was initially part of Champa, until it was conquered by the Qin Empire who were in control of most of Vietnam at the time. In the 2nd century CE, the Cham people rebelled against Chinese rule. During the 14th and 15th century, ethnic Vietnamese gradually admixed with the Cham inhabitants.
During the Vietnam War, Đông Hà was the northernmost town in South Vietnam and was the location of a strategically important United States Marine Corps Đông Hà Combat Base, to support Marine positions along the Vietnamese Demilitarized Zone (DMZ). During the so-called Easter Offensive in 1972, the town was the scene of a ferocious battle between the South Vietnamese army and invading North Vietnamese armored forces. The North Vietnamese army captured the town on 28 April 1972, and it was never regained by the South Vietnamese.
Tourists come to Đông Hà nowadays, especially ex-servicemen from the U.S. and Vietnam, who nearly always include a DMZ tour in their programs. The contemporary Vietnamese singer Như Quỳnh was born in Đông Hà in 1970.

## Climate

Đông Hà has a tropical monsoon climate (Köppen Am). There is a wet season due to the northeast monsoon between August and December, peaking in October with around 629.7 millimetres or 25 inches of rain and frequent typhoon landfalls. The dry season lasts from January to July, though there is a secondary rainfall peak in May. The highest temperature recorded was 44.0 °C on 28 April 2024, while the lowest was 9.4 °C on 2 March 1986.
Climate data for Đông Hà :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 35.0 (95.0) | 37.9 (100.2) | 39.8 (103.6) | 44.0 (111.2) | 43.2 (109.8) | 41.4 (106.5) | 39.7 (103.5) | 39.5 (103.1) | 38.9 (102.0) | 34.9 (94.8) | 35.6 (96.1) | 33.0 (91.4) | 44.0 (111.2) |
| Mean daily maximum °C (°F) | 22.9 (73.2) | 24.0 (75.2) | 27.1 (80.8) | 31.3 (88.3) | 33.9 (93.0) | 34.8 (94.6) | 34.6 (94.3) | 33.8 (92.8) | 31.7 (89.1) | 28.7 (83.7) | 26.0 (78.8) | 23.2 (73.8) | 29.3 (84.7) |
| Daily mean °C (°F) | 19.6 (67.3) | 20.5 (68.9) | 22.7 (72.9) | 25.9 (78.6) | 28.4 (83.1) | 29.8 (85.6) | 29.5 (85.1) | 28.9 (84.0) | 27.3 (81.1) | 25.3 (77.5) | 23.0 (73.4) | 20.3 (68.5) | 25.1 (77.2) |
| Mean daily minimum °C (°F) | 17.5 (63.5) | 18.3 (64.9) | 20.2 (68.4) | 23.0 (73.4) | 25.0 (77.0) | 26.5 (79.7) | 26.3 (79.3) | 25.8 (78.4) | 24.5 (76.1) | 23.0 (73.4) | 20.9 (69.6) | 18.3 (64.9) | 22.5 (72.5) |
| Record low °C (°F) | 10.0 (50.0) | 11.1 (52.0) | 9.4 (48.9) | 15.0 (59.0) | 17.4 (63.3) | 19.8 (67.6) | 22.2 (72.0) | 22.7 (72.9) | 18.6 (65.5) | 16.9 (62.4) | 13.0 (55.4) | 9.8 (49.6) | 9.4 (48.9) |
| Average rainfall mm (inches) | 52.9 (2.08) | 32.0 (1.26) | 35.2 (1.39) | 63.7 (2.51) | 116.8 (4.60) | 92.2 (3.63) | 81.4 (3.20) | 159.6 (6.28) | 400.6 (15.77) | 629.7 (24.79) | 402.4 (15.84) | 189.7 (7.47) | 2,252.7 (88.69) |
| Average rainy days | 14.0 | 11.4 | 11.3 | 10.0 | 10.8 | 7.8 | 8.1 | 11.0 | 15.9 | 20.4 | 20.0 | 18.4 | 158.5 |
| Average relative humidity (%) | 74.8 | 76.4 | 70.8 | 64.1 | 57.8 | 53.2 | 51.0 | 55.5 | 65.0 | 73.1 | 74.8 | 75.6 | 66.0 |
| Mean monthly sunshine hours | 95.3 | 88.9 | 123.4 | 170.2 | 228.2 | 225.1 | 227.5 | 199.1 | 161.7 | 127.9 | 94.2 | 72.2 | 1,815.1 |
| Source: Vietnam Institute for Building Science and Technology ||||||||||||||