weather in london for a month
London: Annual Weather Averages. July is the hottest month in London with an average temperature of 19Â°C (66Â°F) and the coldest is January at 5Â°C (41Â°F) with the most daily sunshine hours at 7 in June. The wettest month is October with an average of 71mm of rain. Average Temperature: London. Loading weather data.