In May, the weather in Nong Bua Lamphu is typically hot. Average daily high temperature in May is about 32 degrees above zero. On average, Nong Bua Lamphu has 27 rainy, 3 cloudy, and 1 sunny day in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Nong Bua Lamphu.