July in Happy Valley-Goose Bay is the rainiest and the warmest month of the year. In July, the weather in Happy Valley-Goose Bay is typically warm. Average daily high temperature in July is about 20 degrees above zero. On average, Happy Valley-Goose Bay has 16 rainy, 7 partly cloudy, 5 cloudy, and 3 sunny days in July. The rains are usually heavy.