January in Kuala Lumpur is the rainiest and the cloudiest month of the year. In January, the weather in Kuala Lumpur is typically hot. Average daily high temperature in January is about 28 degrees above zero. On average, Kuala Lumpur 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 Kuala Lumpur.