17 Things to Do in London This September 2026
September is one of those months when London suddenly feels busy again.
The summer holidays are ending, the cultural calendar is getting going, new exhibitions are opening, major festivals are taking over different parts of the city and there are still plenty of things happening outdoors before autumn properly takes over.
And September 2026 is looking particularly good.
There is a nearly 1,000-year-old tapestry coming to the British Museum, buildings opening their doors across London, the Thames getting its own month-long celebration, London Design Festival returning, London Fashion Week taking over the city and plenty of food, music, theatre and cultural events along the way.
So if you're wondering what to do in London in September 2026, here are 17 things worth putting in your diary.
1. See the Bayeux Tapestry at the British Museum
From 10 September | British Museum
This is arguably the biggest cultural event happening in London this September.
The Bayeux Tapestry is coming to the British Museum for the first time in around 900 years.
The extraordinary 70-metre-long medieval artwork tells the story of the events leading up to the Norman Conquest and the Battle of Hastings in 1066. It will be displayed in London from 10 September 2026 until July 2027.
But there is an important thing to know before you make plans.
The initial September–December ticket release generated enormous demand and sold out, with around 80,000 people reportedly joining the online queue. The next ticket release, for visits from January to March 2027, is scheduled for 21 October, with a later release for visits through July still to come.
So if you already have a September ticket, you're in for something very special.
If you don't, keep an eye on the British Museum's official ticket announcements rather than assuming you can simply turn up.
2. Explore the Thames during Totally Thames
1–30 September | Various riverside locations
For the entire month, the Thames becomes the centre of a huge programme of events.
Totally Thames runs throughout September, bringing art, culture, music, performances, river walks, talks, boat activities and community events to different parts of the river.
One particularly interesting 2026 project is Culture Cargo, where the historic sailing barge Raybel becomes a floating cultural venue travelling along the Thames.
Throughout September, it will host live music, talks and small performances while travelling from the Thames Estuary towards central London.
The festival is a great excuse to explore parts of the river you might normally walk straight past.
Best for: riverside walks, culture and discovering another side of London.
3. Go to Black On The Square
5 September | Trafalgar Square | Free
Trafalgar Square will once again become a huge celebration of Black culture and creativity.
Black On The Square takes place on Saturday 5 September from 12pm to 6pm, and it is free to attend.
The programme includes live music, dance, food, workshops, wellbeing activities and family entertainment.
The 2026 edition also marks several important anniversaries, including 60 years of Notting Hill Carnival, 35 years of Tomorrow's Warriors and 30 years of the MOBO Awards.
The first announced performers include Triniboi Joocie, FIBI and Viva Sound System, with more acts still to be announced.
If you want something lively, cultural and completely free in central London, this is an easy one to add to your September plans.
4. Eat your way through Meatopia
3–6 September | Tobacco Dock
If your idea of a good weekend involves food cooked over fire, Meatopia is back at Tobacco Dock.
The festival brings together chefs, live-fire cooking, music and drinks, making it much more than simply a food market.
Expect meat and other dishes cooked over wood and charcoal, with chefs creating dishes specifically for the festival.
It is a particularly good choice if you're looking for something completely different from London's usual restaurant scene.
Best for: serious food lovers and anyone who likes their food cooked over fire.
5. Catch the final days of Greenwich+Docklands International Festival
Until 6 September | East and southeast London
If you're looking for outdoor theatre, dance and performance, don't miss the final days of Greenwich+Docklands International Festival.
The 2026 festival runs from 21 August to 6 September and is London's major festival of free outdoor theatre and performing arts.
The final September programme includes Dancing City at Queen Elizabeth Olympic Park on 5 September and performances in Woolwich and Thamesmead.
The interesting thing is that you don't necessarily go to a theatre.
The streets, squares, parks and public spaces become the stage.
Best for: unusual performances and free outdoor entertainment.
6. Visit CelebrASIA at Battersea Power Station
11–13 September | Battersea Power Station | Free
Battersea Power Station will host celebrASIA from 11–13 September, celebrating Southeast Asian culture through food, music, performance, art and community.
The free festival includes street food, an artisan market, live music, dance performances, workshops and a Grand Tour celebrating 11 Southeast Asian countries.
There is also a dedicated film programme, cooking classes and ticketed expert panels covering subjects including food, fashion, literature and culture.
It's an easy one to combine with a wider day around Battersea Power Station and the Thames.
Best for: food, culture and a free weekend activity.
7. Explore London's buildings during Open House Festival
12–20 September | Across London | Free
Ever walked past a London building and wondered what is actually inside?
This is your chance to find out.
Open House Festival 2026 runs from 12–20 September, opening buildings and sites across all 33 London boroughs to the public.
The festival is completely free, although some individual activities require booking. Others are drop-in events.
It can be anything from historic buildings and unusual workplaces to architectural tours and places that you normally wouldn't be able to enter.
If you've lived in London for years but still feel like there are hundreds of places you've never properly seen, Open House is one of the best ways to change that.
8. See London turn into a giant design exhibition
12–20 September | Various locations
The London Design Festival returns for its 24th edition from 12–20 September.
Rather than taking place in one exhibition centre, the festival spreads across London.
The 2026 programme includes 11 design districts, with installations, exhibitions, talks and special projects appearing in different parts of the city.
You don't need to be a designer to enjoy it.
Some installations are large public works, while others appear inside galleries, shops and architectural spaces.
One of the best ways to experience it is to choose an area such as Bankside, Shoreditch, Soho or Mayfair and explore several events on foot.
Best for: design, photography, architecture and discovering unusual installations around London.
9. Watch the Great River Race
12 September | Thames
On Saturday 12 September, around 300 crews will take part in the Great River Race.
The race covers around 21.6 miles, travelling from Millwall towards Ham/Richmond and passing beneath London's bridges.
You don't need to enter.
Find a good riverside viewing point, grab something to eat and watch the boats make their way through London.
It is one of those events where an ordinary Thames walk suddenly becomes much more interesting.
Best for: a free riverside day out.
10. Visit the Classic Boat Festival
12–13 September | St Katharine Docks
If you like London's maritime history, head towards St Katharine Docks for the Classic Boat Festival.
The event brings historic vessels to the docks and gives visitors a chance to see boats that are normally far less accessible.
It's a particularly nice event to combine with a walk around Tower Bridge, the Tower of London and the riverside.
You can make a whole day of it without travelling far between attractions.
Best for: boats, history and the Thames.
11. Experience London Fashion Week
17–21 September | Various locations
London Fashion Week returns from 17–21 September 2026.
The event brings together British and international designers, with catwalk shows, presentations, showcases, talks and other fashion events happening around the capital.
But there is an important distinction.
Not everything is open to the public.
The official schedule currently shows a mixture of invite-only events and public events. For example, the BFC Jewellery Showcase at Dover Street Market and Saul Nash's pop-up are listed as open to the public.
So rather than assuming you can attend a runway show, check the official schedule for events specifically marked as public.
12. Catch Harry Potter and the Cursed Child before the format changes
Until 20 September | Palace Theatre
If you've been saying “I'll see Harry Potter and the Cursed Child eventually”, September is a good reason to stop putting it off.
The current two-part production at the Palace Theatre closes on 20 September 2026. From October, the show will return in a single-part format.
So September is your final opportunity to experience the current two-part version.
It is a particularly good choice if you're visiting London with someone who grew up with Harry Potter.
Best for: Harry Potter fans and theatre lovers.
13. Visit the State Rooms at Buckingham Palace
Throughout September | Buckingham Palace
September is your final opportunity of the year to visit the State Rooms at Buckingham Palace.
The annual summer opening gives visitors access to rooms that are normally closed to the public, including the Throne Room and Grand Staircase, as well as part of the palace gardens.
The current opening schedule is Thursday to Monday, with tours running during the day.
If you've lived in London for years but have never actually been inside Buckingham Palace, this is a very different experience from simply taking a photograph outside the gates.
14. Spend an evening at the Soho Jazz Festival
16–19 September | Soho
September isn't only about exhibitions and outdoor festivals.
The Soho Jazz Festival returns in September, bringing live jazz into some of the area's intimate venues.
Rather than sitting in a giant concert hall, this is about experiencing jazz in the bars, clubs and smaller performance spaces that make Soho such an interesting part of London's music history.
If you're looking for an evening activity that feels distinctly different from a West End show, this is worth checking out.
Best for: live music, jazz and Soho after dark.
15. Discover the Music Is Black Festival
Through 13 September | Queen Elizabeth Olympic Park
The Music Is Black Festival continues into September, with free weekends of live music at Queen Elizabeth Olympic Park in Stratford.
The programme explores different aspects of Black British music culture, with live music and spoken-word performances.
It's another strong choice if you want something cultural without necessarily buying a concert ticket.
Best for: music, culture and a free East London day out.
16. See RENT return to the West End
From 26 September | Duke of York's Theatre
September ends with the arrival of a major new West End production.
RENT returns to London from 26 September 2026 at the Duke of York's Theatre.
The new production stars Gaten Matarazzo, known for playing Dustin in Stranger Things, as Mark Cohen.
The musical follows a group of young artists and musicians in New York as they navigate friendship, love, ambition, loss and the AIDS crisis.
If you're looking for a new West End show to book towards the end of September, this is one of the month's biggest theatrical arrivals.
17. Go to London Fashion Week's public events not just the catwalks
17–21 September | Various locations
London Fashion Week deserves another mention because there is more to it than the invite-only catwalks.
The official 2026 schedule currently lists public-facing events alongside industry presentations and invite-only shows.
For example, there are public showcases and pop-ups where visitors can experience the wider fashion-week atmosphere without being part of the fashion industry.
So if you're interested in fashion, don't simply search for “London Fashion Week tickets”.
Check the official schedule and look specifically for events marked “OPEN TO PUBLIC”.
That can turn London Fashion Week into something you can actually experience rather than something you simply see on Instagram.
What should you actually book for September?
A few things deserve particular attention.
The Bayeux Tapestry
If you already have tickets for September–December, keep them.
If you don't, don't assume tickets will be available at the door. The initial release sold out, and the next announced release is for January–March 2027.
Open House Festival
The festival itself is free, but some individual events require booking. Open City's official site confirms the 12–20 September dates and says bookings for ticketed activities opened on 19 August.
London Fashion Week
Check the official schedule carefully because some events are invite-only while others are explicitly open to the public.
RENT
If you're interested in the new production, bookings are already open for performances from 26 September onwards.
What can you do for free?
Quite a lot.
You could go to:
Black On The Square in Trafalgar Square.
celebrASIA at Battersea Power Station.
Open House Festival, where all festival events are free, although some need advance booking.
Many Totally Thames events throughout September.
Music Is Black weekend events at Queen Elizabeth Olympic Park.
And you can watch the Great River Race from public riverside locations.
So you could easily put together several September weekends in London without spending much on tickets.
September might be one of the best months to explore London
August gets the attention because of the summer holidays, outdoor events and Notting Hill Carnival.
But September is when London starts coming back to life in a different way.
Theatres are busy.
New exhibitions arrive.
The Thames becomes a stage.
Buildings that are normally closed open their doors.
Design takes over the city.
Fashion returns.
Food festivals appear.
And one of the most famous medieval objects in the world finally comes to London.
So whether you're looking for free things to do, unusual London experiences, food, culture, theatre, history or something completely new, September 2026 has plenty to choose from.
You don't need to wait until the month starts.
Pick a weekend.
Choose an area.
And go see what London has going on.
Planning your next London day out? Discover more neighbourhood guides, hidden gems, food spots and things to do on LondonYaar.com.
Follow @rohan.londonyaar for more London places, stories and things worth knowing before you visit.