In April, the weather in Ylöjärvi is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Ylöjärvi has 10 rainy, 10 cloudy, 5 sunny, and 5 partly cloudy days in April. The rains are usually light. April as well as March, October, and November is considered the most uncomfortable time to visit Ylöjärvi.