Cool
Average highs are around 19°C, so pack for cooler days.
September verdict
London, England, United Kingdom in September
Weather score44Mixed
Mixed for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 4.7h per day, so this is not one of the brighter months. Rainfall averages 55mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
19°C
Rain
55mm
Sun
4.7h
Weather score
44
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 55mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.7h per day, so this is not one of the brighter months.
Map
Weather map
Compare London, England, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September19°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September55mm average rain
September is close to London's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
September4.7 hours average sun
September sits close to London's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September44 weather score
September sits close to London's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
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