Greater London, the United Kingdom, a region in the United Kingdom, typically experiences pleasant weather in September, with maximum daytime temperatures around 20°C (68°F) and nighttime temperatures around 11°C (52°F) in London.
Explore the map below to discover average September temperatures at the top destinations in Greater London. For a deeper dive, simply click on any destination dot.
Pick a month to see the average temperature, rainfall and sunshine in Greater London - and find the best time to visit. See also: Greater London weather by month.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Greater London.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
London averages a daytime high of 20°C (68°F) in September, which is pleasant for Greater London, the United Kingdom.
Nighttime temperatures in London typically drop to around 11°C (52°F) in September.
Most areas experience a moderate amount of sunshine, with approximately 155 hours of sunlight expected in London. This makes it neither too gloomy nor overly bright.
We have much more information about the climate in Greater London.
Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
Need travel inspiration? Check out our bucket list articles and be inspired.
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