January in Johor Bahru is the rainiest and the cloudiest month of the year. In January, the weather in Johor Bahru is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Johor Bahru has 31 rainy days in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Johor Bahru.