September weather forecast
City of London, United Kingdom

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The famed River Thames and the city of London in England, United Kingdom
The famed River Thames and the city of London in England, United Kingdom

Weather in September

As September adorns the City of London, it marks the onset of Autumn. The temperature now descends from 19.3°C to 12.5°C, with daylight hours reducing gradually. London's sprawling scenery begins to morph into different shades of yellow, orange, and red, adding a picturesque contrast to the urban skyline. October continues the cooling trend as London strolls into the heart of the Fall season.

Temperature

City of London, United Kingdom, experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a pleasant 22.5°C in August to a refreshing 19.3°C. Throughout the month of September, City of London reports a steady low-temperature average of 12.5°C.

Daylight

In September, the average length of the day in City of London, United Kingdom, is 12h and 38min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:48 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:41 pm BST.
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FAQ

What are the temperatures in City of London in September?

In September, in City of London, the average high-temperature is 19.3°C, and the average low-temperature is 12.5°C.

What is the average length of the day in September in City of London?

In City of London, the average day length in September is 12h and 38min.

When is the sunrise / sunset in September in City of London?

In September, on the first day of the month, sunrise is at 6:12 am and sunset at 7:48 pm. On the last day of the month, in City of London, United Kingdom, sunrise is at 6:59 am and sunset at 6:41 pm BST.
Average high temperature
Average low temperature
Average daylight

Average temperature in September
City of London, United Kingdom

Average temperature in September - City of London, United Kingdom
  • Average high temperature in September: 19.3°C

The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (3.4°C).

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Average daylight in September
City of London, United Kingdom

Average daylight in September - City of London, United Kingdom
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

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City of London, United Kingdom

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