Khe Sanh

A small town in Quang Tri, Vietnam, Khe Sanh depends on accurate seasonal forecasts for agriculture and outdoor work.

Like much of Vietnam, Khe Sanh has a tropical monsoon climate — hot temperatures throughout the year with a clear contrast between the rainy season (roughly May to October) and the drier, sunnier months from November onward. Humidity is consistently high, with daytime highs between 30°C and 35°C.

During the rainy season, Khe Sanh can see several centimetres of rain in a single afternoon. Storms often arrive late in the day and clear by evening, leaving humid but cooler conditions overnight.

Visitors looking for the best weather in Khe Sanh should aim for the November–February window, when the monsoon has passed and humidity drops noticeably.

At its elevation, Khe Sanh enjoys noticeably cooler nights than the lowlands, and afternoon temperatures are often a few degrees below the national average.

For the most accurate up-to-the-minute weather in Khe Sanh, see the live current conditions, hourly and 7-day forecast sections above.