July in Wicklow is the rainiest and the warmest month of the year. In July, the weather in Wicklow is typically warm. Average daily high temperature in July is about 16 degrees above zero. On average, Wicklow has 25 rainy, 3 sunny, and 3 cloudy days in July. The rains are usually heavy. July as well as January, February, March, and April is considered the most uncomfortable time to visit Wicklow.