London in September
In September, London averages 20°C (68°F) during the day and 13°C (55°F) at night, with around 8 days of rain (49 mm total).
Conditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.
September is a great month to visit London: pleasant temperatures and relatively few wet days.
20°C
Avg high
13°C
Avg low
8
Rain days
49 mm
Rainfall
London in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 8°C / 46°F | 3°C / 37°F | 55 mm | 11 | 2 |
| February | 9°C / 48°F | 3°C / 37°F | 41 mm | 9 | 2 |
| March | 12°C / 54°F | 5°C / 41°F | 42 mm | 9 | 1 |
| April | 15°C / 59°F | 7°C / 45°F | 44 mm | 9 | 0 |
| May | 18°C / 64°F | 10°C / 50°F | 49 mm | 9 | 0 |
| June | 22°C / 72°F | 13°C / 55°F | 45 mm | 8 | 0 |
| July | 24°C / 75°F | 15°C / 59°F | 45 mm | 8 | 0 |
| August | 23°C / 73°F | 15°C / 59°F | 50 mm | 8 | 0 |
| September | 20°C / 68°F | 13°C / 55°F | 49 mm | 8 | 0 |
| October | 16°C / 61°F | 10°C / 50°F | 69 mm | 10 | 0 |
| November | 11°C / 52°F | 6°C / 43°F | 59 mm | 11 | 1 |
| December | 8°C / 46°F | 3°C / 37°F | 55 mm | 11 | 2 |
Other cities with similar September weather
Check the live 10-day forecast and sunrise/sunset.