September events diary 2026

It's September again but never fear, London's putting on a last flurry of events, activities and happenings before the nights draw in and we're all invited. Here's my weekend-by-weekend guide to free September delights. All month » Totally Thames (Sep 1-30): Once again a whole month of river-focused events, many ticketed, ranging from art to walks to virtual talks to a folksong singalong. Thankfully the website's events section is easier to scroll through these days, but it's still hard to spot the highlights. » Lambeth Heritage Festival (Sep 1-30): Dozens of free talks, guided walks and openings across the borough (plus a proper 36-page brochure to flick through, bliss). Hats off to whoever organises this every year. If you live locally you should definitely take a look. Weekend 1: September 5/6 » Greenwich+Docklands International Festival (21 Aug - 6 Sep): This significant splurge of spectacular performances delivers artistic wonders annually. The GDIF brochure now mostly tells you…