In early September, London still experiences comfortable weather with temperatures hovering around 70°F to 64°F in the daytime. Mornings and evenings are a bit colder; temperatures tend to average in the mid-upper 50° F. In London, September is characterized by pleasant temperatures and moderate rainfall. Daytime temperatures hover around 20°C , while nights can cool down to about 11°C . London in September usually receives moderate rainfall, averaging around 54 mm for the month. Rain is expected on roughly 12 days.
/GettyImages-692838808-e41f159ecb90417d905733b14f3f31be.jpg)
September in London Weather and Event Guide
Get the monthly weather forecast for London, London, United Kingdom, including daily high/low, historical averages, to help you plan ahead. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 50 °F. Overcast. (Weather station: Northolt, United Kingdom). See more current weather Select month: September 2021 Weather in London — Graph °F Sun, Sep 26 Lo:54 12 am Hi:55 1 Lo:55 6 am Hi:68 6 Lo:66 12 pm Hi:73 11 Lo:61 6 pm Hi:64 8 Mon, Sep 27 September Weather in London United Kingdom Daily high temperatures decrease by 6°F, from 70°F to 63°F, rarely falling below 57°F or exceeding 78°F. Daily low temperatures decrease by 4°F, from 57°F to 53°F, rarely falling below 46°F or exceeding 62°F. The best time to visit London is March through May when the temperatures are mild and the city's parks are green and blooming. However, late spring - along with summer - is also prime tourist.
Weather London in September 2020 Temperature & Climate
In early September in London, you will likely experience comfortable daytime temperatures near 21-22 C (70 F) with a couple of the warmer afternoons reaching up into the upper 25-26 C (70s F). Towards the end of this month, however, daytime highs trend cooler, averaging only 17-18 C (mid-lower 60s F). Temperature On the advent of September, London's average high-temperature exhibits a minor adjustment to a comfortable 19°C from August's 21.9°C. London observes an average low-temperature of 11.3°C during September. Humidity The average relative humidity in September is 76%. Rainfall In September, the rain falls for 9.8 days. The lowest September temperature ever recorded in London is 7°C (45F). When you look at these temperatures alongside the average for the month 18°C it's clear that they're the extremes and very rare. Despite being one of the warmest months of the year, September in London reaches an average of 49mm 1mm more than September in London brings mild and pleasant weather, with average temperatures ranging from 13°C (55°F) to 19°C (66°F). It's a transitional month as summer gives way to autumn in London, so expect comfortable temperatures during the day and cooler evenings. While rain is possible, it's generally less frequent than in earlier months.
London weather Today is the hottest September day in more than 100
The average temperature in London in September for a typical day ranges from a high of 68°F (20°C) to a low of 49°F (10°C). Some would describe it as mildly cool and breezy. For comparison, the hottest month in London, July, has days with highs of 73°F (23°C) and lows of 54°F (12°C). The coldest month, January has days with highs of 44. Early in September, temperatures in the evening and the early hours of the morning range from 13-14°C. However, by the end of the month, temperatures during those hours drop to 11-12°C. The average temperature from sunrise to sunset is most likely to hover within the range of 22-26°C.
In spring, from March to May, weather disturbances still frequently pass, the average temperature slowly rises, and the first warm days alternate with the return of cold weather. Average Temperature: Highest 20.2°C (68.4°F) | Lowest 11.6°C (52.9°F) Average Daily Temperature: 15°C (59°F) Total Hours of Sunshine: 152 Average Daily Hours of Daylight: 12.6 Rainfall: Depth 49.6mm (1.95") | Days: 7.9 Humidity: 77% Days of Air Frost: 0 UV Index: 4 Weather in London compared to other Cities New York City, NY, USA: 20.1°C (68.1°F)
London in September Average Weather & Nice Places to Visit
As the month draws to a close however there is a distinct autumn vibe, and the daytime average temperature in London in September will drop to around 18 degrees celsius (maximum mid 60s Fahrenheit). At this point, you will likely need a jacket in the evenings. September 2023 Weather in London — Graph °F. See Hour-by-hour Forecast for upcoming weather. See weather overview. High & Low Weather Summary for September 2023 Temperature Humidity Pressure; High: 90 °F (Sep 9, 1:20 pm) 100% (Sep 1, 4:20 am) 30.33 "Hg (Sep 1, 4:20 am) Low: 46 °F (Sep 23, 3:50 am)
