Today's and tonight's professional weather forecast for Vietnam. Precipitation radar, HD satellite images, and current weather warnings, hourly temperature, chance of rain, and sunshine hours. Get the Vietnam weather forecast including weather radar and current conditions in Vietnam across major cities. Latest weather forecast for Vietnam for today's, hourly weather forecast, including today's temperatures in Vietnam, wind, rain and more. The best time to visit Vietnam is between November and April. The weather in Vietnam can be split by region. In Hanoi & the north, May to October is hot and humid with high rainfall; November to April is cooler and dry. In the far north, December & January can be particularly cold. Central Vietnam experiences hot, dry weather between January & August when temperatures can hit the mid-30°C’s; whilst high levels of rainfall can occur in September, October & November. Southern Vietnam is ...