Fun Events in London – May 2026: Your Ultimate Guide
May in London is nothing short of electric. As the city shakes off the last of spring's chill, the streets, parks, and venues come alive with some of the most exciting events of the year. Whether you're a local looking for something new or a visitor planning your trip, here's your guide to the best fun events happening in London this May 2026.
Chelsea Flower Show – 19–24 May 2026
One of the world's most prestigious horticultural events, the RHS Chelsea Flower Show returns to the Royal Hospital Chelsea for another spectacular year. Expect breathtaking show gardens, floral installations, and expert talks from leading garden designers. It's a sensory experience unlike any other — and a quintessentially London one at that. Tickets sell fast, so book ahead via the RHS official site.
London Marathon Celebrations – Early May
The energy from the iconic London Marathon spills well beyond race day. Surrounding events include community runs, fitness pop-ups across the city, and live entertainment along the South Bank. Whether you're running or cheering, the atmosphere is infectious. Check the latest schedule at londonmarathon.com.
Mighty Hoopla Festival – 30–31 May 2026
Brockwell Park transforms into a celebration of pop culture, music, and pure joy at Mighty Hoopla. Known for its inclusive, euphoric atmosphere, this two-day festival features headline acts, themed stages, and a crowd that's there purely to have a good time. It's one of London's most beloved summer openers. Grab tickets at mightyhoopla.com.
Museums at Night – Mid May
For something a little more cultural, Museums at Night opens London's world-class institutions after dark for special events, late-night tours, and immersive experiences. From the Natural History Museum to the Tate Modern, venues across the city offer unique programming you won't find during regular hours. Find participating venues at museumsatnight.org.uk.
Street Food & Market Festivals
May is prime season for London's legendary street food scene. Maltby Street Market, Borough Market, and pop-up events across Shoreditch and Brixton ramp up their programming throughout the month. Look out for special themed weekends, chef collaborations, and live music pairings. A great starting point is Time Out London's street food guide.
Outdoor Cinema Season Begins
As the evenings get longer, London's outdoor cinema season kicks off in May. Luna Cinema and Rooftop Film Club host screenings at iconic locations — think Blenheim Palace, Tobacco Dock, and rooftops with skyline views. It's the perfect low-key evening out. Browse upcoming screenings at thelunacinema.com and rooftopfilmclub.com.
Summary: Quick Links for London Events in May 2026
- 🌸 RHS Chelsea Flower Show – 19–24 May, Royal Hospital Chelsea
- 🏃 London Marathon Events – Early May, citywide
- 🎉 Mighty Hoopla Festival – 30–31 May, Brockwell Park
- 🏛️ Museums at Night – Mid May, venues across London
- 🍜 Street Food Markets – All month, various locations
- 🎬 Luna Cinema & Rooftop Film Club – From May, iconic London venues
- 📅 Visit London – What's On – Full events calendar
- 🗺️ Time Out London – Curated city guide