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Events in London in September 2026

London has 9 sourced events in September 2026. Compare dates, venues, and ticket sources below, then build the rest of your trip around the events you choose.

The London calendar for September 2026 leads with these:

Plan LondonFree and No sign-up

By TripSapien · Updated November 1, 2026

Sourced events

  • Sep 12 - Sep 13

    Waterworks Festival 2026

    London. Waterworks is back in Gunnersbury Park in London with 70+ artists playing bass, house, and techno during this single day fest.

    Source: festival calendar

  • Sep 18 - Sep 20

    Cosmic Void Festival 2026

    London. This black metal festival takes place in various venues across 3 days in Camden Town.

    Source: festival calendar

  • Sep 18

    Hidden Film Festival

    London. International Music Video Contest.

    Source: festival calendar

  • Sep 19 - Oct 19

    British Horror Film Festival

    London. Horror Film Festival in Great Britain.

    Source: festival calendar

  • Sep 19 - Sep 20

    HowTheLightGetsIn London 2026

    London. There will be political rebels, Nobel Laureates, best-selling authors, live headlining bands and more in store at this 2-day festival.

    Source: festival calendar

  • Sep 24 - Sep 26

    AVA Festival London 2026

    London. AVA, the beloved Northern Irish festival comes to London this March.

    Source: festival calendar

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