July in Karlskrona is the warmest month of the year. In July, the weather in Karlskrona is typically warm. Average daily high temperature in July is about 19 degrees above zero. On average, Karlskrona has 14 sunny, 13 partly cloudy, and 4 rainy days in July. The rains are usually light. July as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Karlskrona.