Edinburgh and London are close in September. Edinburgh averages 10–17°C with moderate crowds; London 14–21°C with moderate-high crowds.
By Daan · Last reviewed October 2026
Edinburgh and London
The verdict for September
The festivals end and the city exhales.
+Mild weather + a dramatic drop in crowds after the Fringe
–Daylight starts shrinking noticeably
September brings a dramatic change after the Fringe ends in early September — mild weather, far fewer crowds and a city that feels like itself again.
Summer weather, fewer people
+Summer crowds begin to ease while warm weather and major events continue.
–Fashion Week and other major events can tighten hotel availability.
Close to July weather with noticeably more room to move.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month