April in Karlabko is the cloudiest month of the year. In April, the weather in Karlabko is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Karlabko has 14 rainy, 6 sunny, 6 partly cloudy, and 4 cloudy days in April. The rains are usually moderate. April as well as February, March, May, and December is considered the most uncomfortable time to visit Karlabko.