The Ultimate Guide: What Is the Best Time of Year to Visit London?: A Complete Guide Introduction: Decoding London’s Seasonal Charm The British capital dresses up every season in its distinct costume – sometimes with a frosty and elegant touch, other times with a sunny and relaxed feel to it. “When is the best time to visit London” – a popular question among those visiting this amazing place for the first time and repeat tourists. It all depends on the purpose of your visit –