July in Kalgoorlie-Boulder is the coldest month of the year. In July, the weather in Kalgoorlie-Boulder is typically warm. Average daily high temperature in July is about 14 degrees above zero. On average, Kalgoorlie-Boulder has 17 sunny, 10 partly cloudy, 2 rainy, and 2 cloudy days in July. The rains are usually light. July as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most uncomfortable time to visit Kalgoorlie-Boulder.