August in Akureyri is the rainiest month of the year. In August, the weather in Akureyri is typically warm. Average daily high temperature in August is about 11 degrees above zero. On average, Akureyri has 17 rainy, 6 partly cloudy, 5 cloudy, and 3 sunny days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Akureyri.