March in Port Hedland is the hottest month of the year. In March, the weather in Port Hedland is typically hot. Average daily high temperature in March is about 34 degrees above zero. On average, Port Hedland has 16 partly cloudy, 13 sunny, and 2 rainy days in March. The rains are usually light. March as well as January, February, April, and December is considered the most uncomfortable time to visit Port Hedland.