In April, the weather in Petropavlovsk is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Petropavlovsk has 14 cloudy, 9 rainy, 4 partly cloudy, and 3 sunny days in April. The rains are usually light. April as well as January, February, October, and December is considered the most uncomfortable time to visit Petropavlovsk.