August in Nong Bua Lamphu is the rainiest month of the year. In August, the weather in Nong Bua Lamphu is typically hot. Average daily high temperature in August is about 31 degrees above zero. On average, Nong Bua Lamphu has 25 rainy and 6 cloudy days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Nong Bua Lamphu.