Noisy, vibrant and truly multicultural, London is a megalopolis of people, ideas and energy. The capital and largest city of both the United Kingdom
and of England, it is also the largest city in Western Europe and the European Union. Situated on the River Thames in South-East England, Greater London has an official population of nearly 8 million people — although the figure of over 14 million for the city's total metropolitan area more accurately reflects London's size and importance. London is one of the great "world cities," and remains a global capital of culture, fashion, finance, politics and trade.
London will host the 2012 Summer Olympics.
London EyeDespite a perhaps unfair reputation for being unsettled, London enjoys a dry and mild climate on average. Only one in three days on average will bring rain and often only for a short period. In some years such as 2010 there is no rain for several weeks.
Winter in London is mild compared to nearby continental European cities, due to both the presence of the Gulf Stream and urban heat effect. Average daily maximum is 8°C (46°F) in December and January. Snow does occur, usually a few times a years but rarely heavy (a few years being exceptions such as the winters of 2010 and 2009, with temperatures dipping down to sub-zeros regularly). Snow in London can be crippling, as seen at the end of 2010. Just 7cm of snow will cause trains to stop running, airports to see significant delays, and mail service will halt. London is a city which does not cope well with snow; walkways, stairs, and streets will not be cleared by shovels or plows. The streets will be salted/gritted, but will remain slick and snow/slush covered until the sun melts it away. Daylight hours are short with darkness filling up the sky by 4pm in December.
Summer is perhaps the best season for tourists as it has long daylight hours as well as mild temperatures. The average daily high temperatures in July and August are around 24°C (75°F) The highest temperature since 2000 was recorded once in August at 38°C (100°F). This means London can feel hot and humid for several days in the summer months. Also, because of urban heat effect, during night time it could feel muggy.
Regardless of which time of the year, the weather in London could change quickly from sunny to rain and from hot to cold.