London in september: average Weather, Temperature and Climate
Weather in London in september 2025
The weather in London in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
56°F
Fog
25% of time
23%
22%
21%
Weather at 12pm
68°F
Clear/Sunny
28% of time
28%
26%
14%
Weather at 6pm
63°F
Clear/Sunny
30% of time
27%
21%
20%
Weather at 3am
58°F
26%
25%
23%
15%
Evolution of daily average temperature and precipitation in London in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in London in september.
The climate of London in september is good
The climate in september in London is relatively dry (with 1.9in of rainfall over 3 days). The weather is better from the previous month since in august it receives an average of 3in of rainfall over 5 days.
The climate quite enjoyable in that area september. The high seasonal norm is 68°F. The minimum is 56°F. Thus, the mean temperature average in september in London is 63°F. Note that these seasonal averages are in contrast with those observed in London in the month of september with a maximum record of 86°F in 2016 and a minimum record of 40°F in 2010. You can plan to have about 24 days with temperatures up to 65°F, or 80% of the month.
In september in London, the days on average last 12:38. Sunrise is at 05:36 and sets at 18:14.
With a good weather, this month is recommended to go there.
Seasonal average climate and temperature of London in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 86°F (2016) | ||||
| Lowest record temperature | 40°F (2010) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 24 day(s) (80%) | ||||
| Sea temperature | |||||
| Average sea temperature | 64°F | ||||
| Lowest sea temperature | 62°F | ||||
| Highest sea temperature | 66°F | ||||
| Wind | |||||
| Wind speed | 17km/h | ||||
| Wind temperature | 54°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.9in | ||||
| Number of days with rainfall | 3 day(s) (9%) | ||||
| Record daily rainfall | 1.3in (2019) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 8.68km | ||||
| Cloud cover | 47% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:36 | ||||
| Time of sunset | 18:14 | ||||
| Length of day | 12:38 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in London in september 2024:
63°F to 76°F
65°F to 70°F
61°F to 74°F
58°F to 67°F
59°F to 63°F
61°F to 68°F
59°F to 74°F
59°F to 67°F
58°F to 63°F
56°F to 65°F
49°F to 58°F
47°F to 58°F
47°F to 61°F
50°F to 65°F
52°F to 68°F
54°F to 68°F
54°F to 70°F
56°F to 76°F
59°F to 76°F
61°F to 72°F
59°F to 76°F
63°F to 68°F
58°F to 68°F
56°F to 63°F
54°F to 61°F
54°F to 63°F
49°F to 56°F
45°F to 58°F
49°F to 58°F
59°F to 61°F
Map: other cities in England in september
Cities near London:
| Tunbridge Wells in september | good weather |
| Maidstone in september | good weather |
| Southend-on-Sea in september | good weather |
| Brighton in september | good weather |
| Worthing in september | good weather |
| Cambridge in september | good weather |
| Chilham in september | good weather |
| Oxford in september | good weather |
| Colchester in september | good weather |
| Eastbourne in september | good weather |
| Seven Sisters in september | good weather |
| Hastings in september | good weather |
Click over cities on the map for information about the weather in september.
London
perfect weather
good
tolerable
bad
very bad
Weather data for London in september:
Weather data for London for september are derived from an average of the weather forecast since 2009 in London. There is a margin of error and these forecasts are to be considered as general information only. The weather in London can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to London.