What is the cheapest month to visit London?
When is the cheapest time to visit london? Usually, the period between january and march is the cheapest time to visit london, due to the cool temperatures, occasional rainfall, and lack of public holidays and events. Avoid august, it’s hot and crowded here during uk school summer holidays. January weather is usually really cold and grim, sometimes goes into feb. January is low season for exhibitions and events, not much on. September through to december is nice in london.