October in Vanimo is the hottest month of the year. In October, the weather in Vanimo is typically hot. Average daily high temperature in October is about 28 degrees above zero. On average, Vanimo has 26 rainy, 4 sunny, and 1 partly cloudy day in October. The rains are usually heavy. October as well as January, February, March, and April is considered the most uncomfortable time to visit Vanimo.