Weather in London in september
Climate normals based on 10 years of historical data for London, Storbritannien.
Average high
20°C
Average low
12°C
Rainfall
67 mm
11 rainy days
Sunshine
2.9h/day
Luftfuktighet
68%
How Hot Is London in september?
Indian summer territory: London averages 20°C peak, 12°C low, in September.
Sunshine Hours in september
Heavy overcast keeps sun limited in London: just 2.9h a day in September.
Does It Rain In London In september?
Rain interrupts most days in London: 67mm in 11 days.
Is London Humid In september?
London feels muggy this month with humidity around 68%, especially in calm air.
Wind In London In september
Light breezes typical: London averages 18 kph wind in September.
Cloud Cover In London In september
Cloudy skies dominate London in September — averaging 68% cloud cover.
Cities With Similar Weather In september
Weather in London, month by month
| Month | High / Low | Regn | |
|---|---|---|---|
| Vädret i januari | 8°C / 3°C | 62mm | Details → |
| Vädret i februari | 9°C / 4°C | 54mm | Details → |
| Vädret i mars | 11°C / 4°C | 60mm | Details → |
| Vädret i april | 14°C / 6°C | 41mm | Details → |
| Vädret i maj | 18°C / 9°C | 60mm | Details → |
| Vädret i juni | 21°C / 12°C | 66mm | Details → |
| Vädret i juli | 23°C / 14°C | 63mm | Details → |
| Vädret i augusti | 23°C / 15°C | 60mm | Details → |
| Vädret i september | 20°C / 12°C | 67mm | |
| Vädret i oktober | 16°C / 10°C | 83mm | Details → |
| Vädret i november | 11°C / 6°C | 67mm | Details → |
| Vädret i december | 9°C / 5°C | 67mm | Details → |