Best Times to Visit London
The best time to visit London is in the spring, when the temperatures are mild and the city's parks are green and blooming. However, spring—along with summer—is also prime tourist season, and hotel and flight prices reflect the surge. You're more likely to find airfare and accommodation deals in the fall and winter, though you'll also encounter chilly temperatures. And no matter when you travel, you should pack an umbrella: "Foggy Londontown" experiences misty days and showers throughout the year (hence the creation of Burberry).
Peak tourist season in London is pretty much all year-round, but spring (and summer) are especially busy. By making your London Town jaunt in late spring, you'll have the opportunity to witness the royal parks and gardens blossoming, and hit the city's weather sweet spot. While fall and winter can be especially rainy, and summer can get muggy, spring in London enjoys a happy medium, with average temperatures hovering between the 50s and 60s.
London is still crowded with tourists into mid-September, thanks to the photo-worthy autumn colors, and mild 60 to 70 degree temperatures. But even with the agreeable temperatures, you should keep in mind that October is when London schools take "half-term." This week-long break can result in top attractions being overcrowded with local students, so plan accordingly.
If you're looking to save a pound or two, travel during the chilly, winter season (except for December when rates skyrocket). Though temperatures average in the 30- to 40-degree range, you'll be able to enjoy a more authentic London experience sans tourist hordes. Because the city sparkles with twinkling lights and festive events during the holiday season, central London is usually overrun with holiday shoppers. If you're in London for the holidays, plan to take in the city's Christmas splendour away from popular shopping hot spots.
Fortunately, comfortable summertime temperatures (mid-70s Fahrenheit) make the tourist crowds bearable. Don't leave your shorts home just yet; in recent years, London has experienced record highs in the lower 90s. Also, summer affords no relief from rain and subsequent humidity. Packing an umbrella is a must.