January in Batam is the windiest and the coldest month of the year. In January, the weather in Batam is typically warm. Average daily high temperature in January is about 27 degrees above zero. On average, Batam has 20 rainy, 5 cloudy, 5 partly cloudy, and 1 sunny day in January. The rains are usually heavy. January as well as March, April, May, and June is considered the most uncomfortable time to visit Batam.