London weather by month › September
London in September: weather and what to expect
It’s fine, but not the best. June to August are more pleasant.
September weather in London
Daytime high68°F 20°C
Night low52°F 11°C
Rain2.2 in 55 mm
AirComfortable
SunModerate sun
In September, London averages highs of 68°F (20°C) and lows of 52°F (11°C), with 2.2 in (55 mm) of rain. The air feels comfortable and the sun is moderate. 1991–2020 averages, not a forecast.
Pack: light layers, a sweater for evenings.
Places with the same weather in September
Match out of 100 for September, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec