Best Time to Visit London
London’s rhythm shifts with the seasons, from long summer evenings along the Thames to cozy winter days in its world-class museums. The best time to visit London comes down to what you want most from the trip: lively outdoor time, fewer crowds, or the lowest hotel prices.
Drawing on Expedia Group booking data from 2025, here’s how London demand, prices, and travel patterns change through the year.
When to Visit London at a Glance
- Best weather: April to September
- Most crowded: July, August, and June (about 1.8x busier than the calmest months)
- Cheapest months: February, January, and March (about 37% lower than peak)
- Fewest crowds: January and February
- Major travel spikes: June through October, with demand peaking in July, August, and June
- Best value balance: February, August, and April (about 26% below peak pricing)
When Is the Best Weather in London?
For time outdoors, April through September is the sweet spot. This is when the city warms into the 60s and low 70s, ideal for long walks along the South Bank, browsing open-air markets, and lazy afternoons in the Royal Parks. If you are comparing London weather by month, this stretch offers the mildest, brightest days of the year.
If your plans lean indoors, the cold, damp stretch from December through February can be a comfortable fit. Those chilly weeks are ideal for cultural days at the British Museum or the Tate Modern, and London's free galleries and cosy pubs are perfect for escaping the winter chill.
When Is the Cheapest Time to Visit London?
The cheapest time to visit London is usually February, January, and March, when London hotel prices run about 37% lower than the most expensive months. If you are after savings without a deep-winter feel, April and August often deliver a strong value balance at about 26% below peak.
One more simple way to save is to arrive on Sunday, which is typically the least expensive day to check in. Meanwhile, Wednesday tends to be the priciest arrival day.
When Is London Most Crowded?
London’s peak season lands in the summer months. July, August, and June are the busiest, with crowds about 1.8 times larger than in January and February. If you'd prefer to explore London when it's quieter, and see big sights like the Tower of London or the National Gallery without the crowds, January and February are your best bet.
Top-rated properties in central London also sell out fastest in July, August, and June. If you have your heart set on a stay near the West End or along the river, lock in plans early for these months.
How Far in Advance Should You Book London Hotels?
Travelers book further ahead for busy periods. July stays are typically reserved about 48 days in advance, compared with around 28 days for January trips. For summer and early autumn, start searching earlier and be ready to commit once you find the location and rate you want. Winter dates generally leave a bit more breathing room, so you don't need to book so far ahead.
Because sought-after properties fill fastest in July, August, and June, availability can tighten quickly. Flexible-rate bookings are available throughout the year, with a slight increase in September at about 37%. So you can expect steady flexibility for your London stay, although there are fewer last-minute options in summer.
Insights based on bookings through Expedia Group between January 1–December 31, 2025. [Last updated: July 14, 2026]