In May, the weather in Thủ Dầu Một is typically hot. Average daily high temperature in May is about 31 degrees above zero. On average, Thủ Dầu Một has 30 rainy and 1 sunny day in May. The rains are usually heavy. May as well as April, June, July, and August is considered the most uncomfortable time to visit Thủ Dầu Một.