March in Olympia is the rainiest and the windiest month of the year. In March, the weather in Olympia is typically warm. Average daily high temperature in March is about 10 degrees above zero. On average, Olympia has 26 rainy, 3 sunny, 1 cloudy, and 1 partly cloudy day in March. The rains are usually heavy. March as well as January, February, April, and November is considered the most uncomfortable time to visit Olympia.