April in Kamloops is the windiest month of the year. In April, the weather in Kamloops is typically cold. Average daily high temperature in April is about 7 degrees above zero. On average, Kamloops has 16 rainy, 11 cloudy, 2 sunny, and 1 partly cloudy day in April. The rains are usually moderate. April as well as March, May, and June is considered the most uncomfortable time to visit Kamloops.