In April, the weather in Lahdenpohya is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Lahdenpohya has 11 partly cloudy, 7 rainy, 7 sunny, and 5 cloudy days in April. The rains are usually light. April as well as September, October, and November is considered the most uncomfortable time to visit Lahdenpohya.