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Things to do in London in September 2021

London comes alive in September with city-wide celebrations, family fun and exciting festivals, as the city basks in the last weeks of summer.
People walking, admiring the floral displays of the RHS Chelsea Flower Show.
Snap away at the flower displays at the RHS Chelsea Flower Show. Credit: RHS/Georgi Mabee. Image courtesy of RHS.

Top September events

  • September is festival season in London. 
  • Top September events each year include Open House London, Totally Thames, the London Design Festival and London Fashion Week
  • This month is your last chance to explore Buckingham Palace gardens.

Make the most of the last few weeks of summer in September, when the weather is normally still warm and there's a whole range of unmissable events in London.

As the summer school holidays come to an end, the city welcomes an exciting lineup of architecture, fashion and music festivals – but there are still plenty of fun things to do for those family days out at the weekends.

Top September activities in London

September events in London

New and returning theatre shows in September

  • See three of London's longest-running shows return to the stage this month, with family favourite Wicked, thrilling Woman in Black and rousing Les Misérables all reopening.

Best London festivals in September

  • Enjoy a month-long celebration of London's river during Totally Thames. Admire artworks, catch concerts in unusual spaces and explore the history of the Thames through free exhibitions and walks.
  • Experience the biggest classical music festival on the planet with the remaining performances of this year's BBC Proms. Stay tuned for confirmation of BBC Proms in the Park in 2021.
  • Spot innovative design projects and large-scale installations as they pop up all over the capital in September during the London Design Festival, including Bring London Together which transforms pedestrian crossings into colourful artworks. 
  • Catch up on the latest fashion trends with part-physical and part-online events, including catwalk shows, pop-up designer shops and expert-led panels at London Fashion Week.
  • And bag yourself some exclusive fashion items or attend fun-filled events during Limited Edition London
  • Step inside some of the capital’s most iconic, unusual and, at times, secret buildings during the free Open House London festival.
  • Celebrate contemporary photography at Photo London, as more than 100 galleries showcase photographers, events and activities.
  • Explore the art of storytelling across three incredible days of live talks, workshops and screenings during Evening Standard Stories Festival in association with Netflix. 
  • Steep yourself in history through the annual Chelsea History Festival's programme of talks by world-class speakers, historians and performers.
  • Make the most of City Beerfest-Lite in Guildhall Yard with an afternoon of beer, street food and live music.   
  • Head beneath St Martin-in-the-Fields church and listen to the smooth sounds of late-night jazz with Crypt Lates.

Outdoor events in London

For more things to do in September in London, download the Visit London app and check out our weekly guide to what's on at the weekend in London.

Find heaps of seasonal special events and activities with our ultimate guide to autumn in London. Alternatively, take a look at the handy events calendar and guide to what's on in London, including the best London theatre shows

WEATHER: For average seasonal temperatures and rainfall, see this London weather page.

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