London in September: a seasonal travel plan
London, United Kingdom. In september, the average daytime high is 20.3 °C and the night-time low is 10.6 °C. Daytime suits a longer city route; keep a break and some flexible time around midday.
Choose a month
Selected month: September
Temperatures by month
Air temperature: London
Contents
Weather at a glance
- Daytime high
- 20.3 °C
- Nighttime low
- 10.6 °C
- Monthly precipitation
- 53.8 mm
- Days with at least 1 mm
- 11.3
- Daylight
- 12.7 h
2015–2024 averages. Daytime temperature is the average daily maximum; nighttime temperature is the average daily minimum.
Early, middle and late month
| Period | Daytime high, °C | Nighttime low, °C | Days with at least 1 mm |
|---|---|---|---|
| Days 1–10 | 21.7 | 11.8 | 3.8 |
| Days 11–20 | 20.7 | 10.6 | 3.0 |
| From day 21 | 18.5 | 9.4 | 4.5 |
What this month is like
London, United Kingdom. In september, the average daytime high is 20.3 °C and the night-time low is 10.6 °C. Daytime suits a longer city route; keep a break and some flexible time around midday.
There are 11.3 wet days on average, with about 53.8 mm of precipitation. Keep an indoor backup route and a compact rain jacket in your day bag.
How to plan the day
Daytime suits a longer city route; keep a break and some flexible time around midday.
Average daylight is 12.7 hours, so put longer routes in the brighter part of the day.
What to pack
Pack light clothes, comfortable shoes and an extra layer for the evening. Keep an indoor backup route and a compact rain jacket in your day bag.
Precipitation and an alternative plan
There are several days with precipitation during the month. A light waterproof layer can help you continue your route outdoors.
What to pack
Bring light daytime clothes, comfortable shoes and an extra layer for cooler hours. A compact rain jacket takes little room in a day bag.
Compared with neighbouring months
Average daytime high: previous month — 23.1 °C, September — 20.3 °C, next month — 15.8 °C. Days with at least 1 mm of precipitation: 10.8, 11.3 and 12.8.
Things to do
London follows the Thames: the City and Westminster hold the historic centre, while districts to the south and east give the city its character. The Underground ties everything into one network, so a hotel near a station matters more than being next to a single sight.
Westminster and the South Bank
Start at Westminster Abbey and Big Ben, cross the bridge to the London Eye and follow the South Bank to Tate Modern. Half a day passes easily here, with the West End theatres a short walk away for the evening.
British Museum and Bloomsbury
The British Museum on Great Russell Street fills a whole morning if you follow the Egyptian and Greek galleries. Afterwards walk through the quiet squares of Bloomsbury and browse the bookshops on Marchmont Street.
Camden and the canals
From Camden Lock market follow the Regent's Canal towpath towards Paddington, or climb Primrose Hill for a view over the city. On Sundays the market is loud with street food and music; on weekdays the water is calmer and seats are easier to find.
Where to stay
Westminster
Westminster suits travellers who want Parliament, the abbey and St James's Park close by. Hotels cost more and the streets empty in the evening, but the main sights are walkable and the Tube is on the doorstep.
Soho and Covent Garden
Soho and Covent Garden appeal for theatres, restaurants and short walks between them. The streets stay busy late into the night, so look for side roads north of Oxford Street or down towards the river.
Shoreditch
Shoreditch rewards anyone who prefers markets, coffee and street art to museum queues. The City is ten minutes away on the Overground, though evenings are lively and the streets feel more working than ceremonial.
Getting to and around London
Trains and the Piccadilly line link Heathrow with the centre, while the Heathrow Express reaches Paddington much faster. Gatwick connects to Victoria by Southern trains. Within London the main transport is the Underground and the bus network: journeys are paid with a contactless card, and walking beats the Tube between neighbouring central districts.
Three days in London
Westminster and the South Bank
Walk past Westminster Abbey and the Houses of Parliament in the morning, then cross the bridge to the South Bank. Continue to Tate Modern and return over the Millennium Bridge to St Paul's Cathedral.
The City and the Tower
Begin at the Tower of London and Tower Bridge, then climb to St Paul's Cathedral and cross the City to Borough Market. Look for dinner in the lanes south of London Bridge.
Museums and parks
From the British Museum walk through Bloomsbury into Soho, then turn west into Hyde Park and Kensington Gardens after lunch. Keep the evening for a show in the West End.
Weather throughout the year
| Month | Daytime high, °C | Nighttime low, °C | Precipitation, mm | Days with at least 1 mm | Daylight, h |
|---|---|---|---|---|---|
| January | 7.1 | 1.3 | 66.9 | 13.6 | 8.4 |
| February | 8.8 | 2.2 | 54.9 | 11.7 | 9.9 |
| March | 10.8 | 3.1 | 59.7 | 13.4 | 11.9 |
| April | 13.7 | 4.0 | 38.0 | 9.6 | 13.8 |
| May | 17.4 | 7.4 | 50.9 | 11.0 | 15.6 |
| June | 20.8 | 10.6 | 60.9 | 10.0 | 16.5 |
| July | 23.1 | 12.8 | 53.6 | 10.7 | 16.1 |
| August | 23.1 | 12.8 | 60.9 | 10.8 | 14.6 |
| September | 20.3 | 10.6 | 53.8 | 11.3 | 12.7 |
| October | 15.8 | 8.0 | 77.6 | 12.8 | 10.7 |
| November | 10.7 | 4.6 | 74.2 | 13.0 | 8.9 |
| December | 8.6 | 3.9 | 76.9 | 14.5 | 7.9 |
Frequently asked questions
London: what is the temperature in September?
The average daytime high is 20.3 °C and the night-time low is 10.6 °C. Daytime is suitable for a longer walk around the city. Leave time for breaks and lunch along the way.
How many days with precipitation are there in September?
On average, there are 11.3 days with at least 1 mm of precipitation; the monthly total is 53.8 mm. There are several days with precipitation during the month. A light waterproof layer can help you continue your route outdoors.
What should I pack for walks in September?
Bring light daytime clothes, comfortable shoes and an extra layer for cooler hours. A compact rain jacket takes little room in a day bag.
How does the weather change from the start to the end of the month?
Average daytime highs by part of the month: 1–10 — 21.7 °C; 11–20 — 20.7 °C; 21 to month-end — 18.5 °C.
How many daylight hours are there in September?
The average is 12.7 hours. Spread walks between the morning and afternoon, then leave the evening for dinner or indoor activities.
Is London worth visiting in September?
The climate suits a trip if daytime temperatures around 20.3 °C and nights around 10.6 °C work for you. Daytime suits a longer city route; keep a break and some flexible time around midday.
What can I do in London on a wet day in September?
Keep an indoor backup route and a compact rain jacket in your day bag. Keep a museum, market, café or another indoor route near your accommodation.
What should I pack for London in September?
Pack light clothes, comfortable shoes and an extra layer for the evening. Average daylight is 12.7 hours.