United Kingdom
Best Time to Visit London
London is visitable year-round, but weather and crowds vary markedly. Spring and early autumn offer the optimal balance of mild conditions and manageable tourism; summer draws peak crowds and premium prices, whilst winter trades grey skies for festive atmosphere and lower costs.
✦ Visit in May or September for near-flawless conditions and accessible pricing; avoid July–August unless festive crowds energise you.
✅ Best months
May and September. May delivers warm, dry weather (15–20°C), longer daylight, and pre-summer crowds. September maintains similar temperatures with autumn clarity, post-summer price drops, and fewer tourists after the school holiday rush.
🔥 Peak season
July and August dominate peak season. Hotels charge 30–50% premiums, major attractions queue for 90+ minutes, and pavements throughout the West End and South Bank are congested. School summer holidays (mid-July to early September) and fine weather drive sustained high demand.
💷 Shoulder (best value)
April and October are London's underrated sweet spots. April averages 10–15°C with spring blooms; October holds 10–14°C with golden light. Hotel discounts reach 20–30% versus summer, queues shorten considerably, and restaurants and galleries feel less hectic.
🌙 Quietest & cheapest
January to early March is coldest (4–8°C) and greyest, with frequent rain and short daylight. Hotel rates drop 40–50% and attractions are quiet, but wet weather curtails outdoor exploration. December trades bleak weather for Christmas markets and festive lights—a worthwhile exception to winter's downsides.
London season by season
Spring (Mar–May)
Weather: 4–18°C; increasing sunshine; showers taper toward May
Crowds: low to medium
Cherry blossoms and green parks; ideal for walking tours and outdoor museums. Late May is near-perfect but prices creep upward.
Summer (Jun–Aug)
Weather: 15–24°C; longest days; occasional rain
Crowds: very high
Open-air theatre, Promenade Concerts, beer gardens. Heat rarely excessive, but crowds and cost are at annual peaks.
Autumn (Sep–Nov)
Weather: 8–18°C; crisp, clear; low precipitation
Crowds: medium to low
Golden light; literary and design festivals. September rivals May in quality with lower prices. November grows quiet and grey.
Winter (Dec–Feb)
Weather: 2–8°C; frequent overcast and rain; rare snow
Crowds: low (except Dec 20–Jan 2)
Christmas markets, pantomimes, and festive lights transform grey days. January–February: emptiest, cheapest, and dampest; ideal for museums and galleries.
🎭 Events worth timing a trip around
Trooping the Colour (second Saturday in June) showcases royal pageantry along the Mall with military precision. The Promenade Concerts at the Royal Albert Hall run July–September, culminating in the patriotic Last Night broadcast nationwide. Chelsea Flower Show (May) draws horticulture enthusiasts but requires advance booking.
🧳 What to pack
Layer consistently: London's weather shifts within hours from drizzle to sun, and buildings vary wildly in heating. A compact umbrella and windproof jacket are non-negotiable year-round.
Found your dates? Get your hotel briefing.
Room tips, the 14-day forecast for your exact stay, dining, transport and more — free for any London hotel.
Guide last updated June 2026.