London is one of the world's great cities — the capital of England and the United Kingdom, a former heart of a global empire, and today a cosmopolitan metropolis of nine million people drawing visitors from every country. The city holds more UNESCO-listed sites, Michelin-starred restaurants, and free world-class museums than almost any other capital. From the medieval Tower of London and the palaces of Westminster to the street food of Borough Market, the theatres of the West End, and the galleries of Tate Modern, London offers an almost inexhaustible range of experiences across its 33 boroughs.
London has a temperate oceanic climate (Köppen classification Cfb), characterised by mild temperatures year-round, frequent cloud cover, and moderate rainfall spread across all months with no distinct dry season. Summers are warm rather than hot (typically 18–24°C), winters are cool but rarely freezing (3–10°C), and rainfall is relatively modest by reputation — London receives less annual precipitation than Rome or New York — but occurs frequently as drizzle or light rain. Snow is rare and usually brief when it does occur. The city is subject to weather variability on any given day: a visitor should always be prepared for cloud or light rain regardless of the season. UV levels in summer are higher than the latitude suggests due to long daylight hours.
Best time to visit
Best: May–June and September–October
Avoid: November–January for the dreariest weather with minimal daylight and frequent drizzle
Peak Season: July–August
Notes: May and June offer the best combination of pleasant weather (15–21°C), long daylight hours (sunset after 21:00 in June), blooming Royal Parks, and fewer crowds than the peak summer holiday period. September and October deliver similar temperatures with spectacular autumn colours, excellent cultural programming (London Film Festival, Last Night of the Proms), and more manageable crowds. July–August brings the warmest temperatures and most events but also peak hotel prices and the longest attraction queues.
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- Season
- Spring (March–May)
- Description
- London's parks emerge from winter with daffodils, crocuses, and cherry blossom from mid-March. Easter weekend brings domestic and European visitors. May is widely considered the finest month to visit: comfortable temperatures, long days, green parks, and no summer pricing yet in effect. The Chelsea Flower Show (May) and Wimbledon ballot decisions are spring highlights.
- Weather
- 8–18°C (46–64°F); variable with sunny spells and occasional showers
- Crowd level
- Moderate (rising toward High in late May)
- Recommended for
- Gardens and parks · Walking tours · Museum visits · Chelsea Flower Show · Cultural events · Photography in parks
- Season
- Summer (June–August)
- Description
- London's longest days (up to 16.5 hours of daylight in late June) make summer ideal for outdoor activities: picnics in Hyde Park, rooftop bars, open-air theatre at Regent's Park Open Air Theatre, and the Serpentine Lido. Wimbledon Championships (late June–early July), Notting Hill Carnival (August bank holiday), and the BBC Proms (July–September) are signature summer events. Temperatures occasionally exceed 30°C during brief heat waves; the city has limited air conditioning outside newer buildings.
- Weather
- 18–28°C (64–82°F); occasional heat waves above 30°C; can also have cool rainy spells
- Crowd level
- Very High
- Recommended for
- Outdoor events · Parks and open spaces · Rooftop bars · Thames River trips · Wimbledon · Notting Hill Carnival · Open-air theatre
- Season
- Autumn (September–November)
- Description
- Autumn is London's cultural season. The London Film Festival (October), Last Night of the Proms (September), Frieze Art Fair (October), and the Totally Thames festival make it an exceptional period for arts lovers. Temperatures drop gradually from 20°C in September to 9°C in November. Autumn colours in Hampstead Heath, Greenwich Park, and Richmond Park peak in October. Bonfire Night (5 November) offers spectacular free firework displays at parks and commons across the city.
- Weather
- 9–20°C (48–68°F); increasing rainfall from October; beautiful clear days common in September
- Crowd level
- Moderate (September) to Low (November)
- Recommended for
- Film festivals · Art fairs · Autumn foliage · Bonfire Night · Cultural exhibitions · Theatre season opening · Comfortable walking tours
- Season
- Winter (December–February)
- Description
- December transforms London with Christmas lights along Oxford Street, Regent Street, and Carnaby Street; Winter Wonderland in Hyde Park (free entry, rides charged); and ice skating at Somerset House (WC2R 1LA), the Natural History Museum, and Canary Wharf. New Year's Eve fireworks on the Thames are ticketed from 2024 onwards. January and February are the quietest and cheapest months with short daylight (sunset at 16:00), cold temperatures, and frequent overcast days — but also uncrowded museums and hotel bargains.
- Weather
- 3–10°C (37–50°F); frequent overcast skies; occasional frost; rare but possible snow
- Crowd level
- Low (January–February); Moderate–High (December Christmas period)
- Recommended for
- Christmas markets · Winter Wonderland · Ice skating · New Year's Eve fireworks · Museum deep-dives · Budget travel · January sales shopping
Month-by-month weather
Typical conditions throughout the year.
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The seasons
What to expect in each part of the year.
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Crowds & peak times
When to expect tourists and when to avoid them.
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- Period
- July–August
- Level
- Very High
- Notes
- Peak tourist season; accommodation prices are highest of the year. Major attractions (Tower of London, Madame Tussauds, London Eye) have the longest queues — up to 60–90 minutes for walk-in visitors. Pre-booking timed entry tickets is essential. School summer holidays from late July push family visitor numbers further.
- Period
- December (Christmas week)
- Level
- High
- Notes
- Oxford Street, Regent Street, and Covent Garden are extremely crowded with Christmas shoppers in the weeks before Christmas. Winter Wonderland in Hyde Park draws large weekend crowds. Restaurants and theatre shows are heavily booked — advance reservations essential.
- Period
- Easter weekend
- Level
- High
- Notes
- Bank holiday weekend brings many domestic and European short-break visitors. Attraction queues are long; transport is busy. Good Friday and Easter Sunday see some shop closures. Pre-booking all activities strongly recommended.
- Period
- May–June (non-Wimbledon weeks)
- Level
- Moderate
- Notes
- The best balance of pleasant weather, manageable crowds, and competitive hotel rates. Museums and galleries are busy but not overwhelmingly so. Advance booking for popular restaurants and theatre still recommended.
- Period
- January–February
- Level
- Very Low
- Notes
- The cheapest time to visit for flights and accommodation. Museums and galleries have minimal queues — the British Museum and National Gallery can be enjoyed without crowds. Cold and dark, but the post-Christmas city has a calm, local character.
- Period
- September–October
- Level
- Moderate
- Notes
- A strongly recommended time to visit. Warm enough for outdoor activities, cultural calendar is at its richest, and hotel prices drop from summer peaks. The Film Festival and Frieze Art Fair add to an already excellent programme.
Major events & festivals
Time your visit around what matters.