In May, the weather in Bandar-e Mahshahr is typically hot. Average daily high temperature in May is about 40 degrees above zero. On average, Bandar-e Mahshahr has 25 sunny, 5 partly cloudy, and 1 rainy day in May. The rains are usually light. May as well as June, July, August, and September is considered the most uncomfortable time to visit Bandar-e Mahshahr.