July in London is the sunniest and the warmest month of the year. In July, the weather in London is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, London has 14 sunny, 9 partly cloudy, and 8 rainy days in July. The rains are usually moderate. July as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit London.