September in London is the perfect blend of late‑summer sunshine and new‑season excitement, making it an ideal month for families to explore the city. From cultural festivals and outdoor adventures to hands‑on workshops and weekend outings, there’s plenty to keep little ones entertained and parents inspired. Here are our top 10 things to do in London this September to help you make the most of the month together.
1. Open House Festival 2026
London’s most exciting architecture festival returns — with free family tours, behind‑the‑scenes building access, and child‑friendly workshops. Perfect for curious kids who love exploring.
2. Wonderlab at the Science Museum
A must‑visit for families — 50+ interactive exhibits, live science demonstrations, and immersive experiments. Great for: ages 5–12, weekend outings, after‑school fun.
3. Greenwich and Dockland International Festival
GDIF 2026 brings free outdoor theatre, dance, and spectacular street performances to Greenwich and Docklands. It’s a brilliant family day out with colourful shows, interactive installations, and open‑air entertainment that kids love. Expect a lively, welcoming atmosphere and plenty of space to explore, play, and enjoy world‑class arts together.
4. Frida the Making of an Icon
Frida: The Making of an Icon at Tate Modern traces how Kahlo became a global cultural force, showcasing over 30 key works, personal objects, and hundreds of pieces by artists she inspired. A vivid journey through her many identities — artist, activist, icon — culminating in the phenomenon of “Fridamania.” Showing until 3 January 2027.
5. Family Fun (5 – 10 yrs): Dream Home with Dioramas
Frederic Leighton designed his artist house as the ultimate ‘dream home’, filled with imaginative features like fireplaces with no visible chimneys and even an indoor fountain with fish. Inspired by his creativity, this fun and hands-on workshop invites children to design and build a diorama of their own dream home. Booking required for 26 September at the Leighton House Museum.
6. Diana Memorial Playground – Now Open Again
The beloved Peter Pan‑themed playground in Kensington Gardens has officially reopened, and it’s better than ever for little adventurers. Expect the iconic pirate ship, sandy play areas, musical features, and plenty of imaginative spaces for toddlers and young children. It’s a perfect weekend stop‑off after a family walk through the gardens — and an easy meet‑up spot for mums.
7. Make and Meet at the V&A
An evening of connection and creative making with free workshops, free food, and free tickets to Schiaparelli: Fashion Becomes Art or Rising Voices: Contemporary Art from Asia, Australia and the Pacific. For ages 16 – 26 taking place on 25 September 2026.
8. Music in the Museum at the London Transport Museum
Enjoy live performances from some of London’s most talented young classical and jazz musicians, set against the unique backdrop of our iconic collection. Various dates in September.
9. London Design Festival
London Design Festival celebrates and promotes our city as the design capital of the world. The 24th edition will take place from 12–20 September 2026.
10. Thames Festival Trust
Celebrating rivers with arts events, active adventures, environmental initiatives, heritage and education programmes.
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