July weather forecast in Sundsvall

July in Sundsvall is the rainiest, the cloudiest, and the warmest month of the year. In July, the weather in Sundsvall is typically warm. Average daily high temperature in July is about 20 degrees above zero. On average, Sundsvall has 14 rainy, 10 partly cloudy, 4 sunny, and 3 cloudy days in July. The rains are usually heavy.