Geography
[edit]
Main article: Geography of London
Scope[edit]
Greater London is one of nine regions of England and the top subdivision covering most of the metropolis. The City of London at its core once comprised the whole settlement; as its urban area grew, the Corporation of London resisted attempts to amalgamate the city with its suburbs, causing "London" to be defined several ways.
Satellite view of London in June 2018
Forty per cent of Greater London is covered by the London post town, in which "London" forms part of postal addresses.
The London telephone area code (020) covers an area similar in size to Greater London, although some outer districts are excluded and some just outside included. The London linked-number area extends 18 miles around Kings Cross, see Director telephone system.
The Greater London boundary has been aligned to the M25 motorway in places.
Urban expansion is prevented by the Metropolitan Green Belt, although the built-up area extends beyond the boundary in places, producing a separately defined Greater London Urban Area. Beyond this is the London commuter belt. Greater London is split for some purposes into Inner London and Outer London, and by the River Thames into North and South, with an informal Central London area. The coordinates of the nominal "centre of London", traditionally the original Eleanor Cross at Charing Cross near the junction of Trafalgar Square and Whitehall, are about 51°30′26″N 00°07′39″W / 51.50722°N 0.12750°W / 51.50722; -0.12750.
Status[edit]
Within London, the City of London and the City of Westminster have city status. The City of London and the remainder of Greater London are ceremonial counties. Greater London includes parts of the historic counties of Middlesex, Kent, Surrey, Essex and Hertfordshire. Greater London has been defined as a region of England.
London is the capital of the United Kingdom and of England by convention. The capital of England was moved from Winchester as the Palace of Westminster developed in the 12th and 13th centuries to become the home of the royal court, and thus the nation's political capital. The city has four World Heritage Sites: Kew Gardens; the Tower of London; the site featuring the Palace of Westminster, the Church of St Margaret, and Westminster Abbey; and the historic settlement in Greenwich where the Royal Observatory defines the prime meridian (0° longitude) and Greenwich Mean Time.
Topography[edit]
London from Primrose Hill
Greater London has an area of 611 square miles (1,583 km2), while the London Metropolitan Region has an area of 3,236 square miles (8,382 km2).
Modern London stands on the Thames, its primary geographical feature, a navigable river which crosses the city from the south-west to the east. The Thames Valley is a flood plain surrounded by gently rolling hills including Parliament Hill, Addington Hills, and Primrose Hill. Historically, London grew up at the river's lowest bridging point. The Thames was once much broader and shallower with extensive wetlands; at high tide, its shores reached five times their present width.
Since the Victorian era the Thames has been embanked, and many of its London tributaries now flow underground. The Thames is tidal, and London is vulnerable to flooding. The threat has increased because of a continuous rise in high water level caused by climate change and by the slow 'tilting' of the British Isles through post-glacial rebound.
Climate[edit]
Main article: Climate of London
London has a temperate oceanic climate (Köppen: Cfb). The average annual precipitation is about 600 mm (24 in). Despite relatively low annual precipitation, London receives 109.6 rainy days on the 1 mm (0.039 in) threshold annually. London is vulnerable to climate change, and experts are concerned that households may run out of water before 2050.
Summers are generally warm, sometimes hot. London's average July high is 23.5 °C (74.3 °F). On average each year, London experiences 31 days above 25 °C (77.0 °F) and 4.2 days above 30.0 °C (86.0 °F). Winters are generally cool with little temperature variation. Heavy snow is rare, but snow usually falls at least once each winter. As a large city, London has a considerable urban heat island effect, making the centre of London at times 5 °C (9 °F) warmer than the suburbs and outskirts.
vteClimate data for London (LHR), elevation: 25 m (82 ft), 1991–2020 normals
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Year
Record high °C (°F)
17.2(63.0)
21.2(70.2)
24.5(76.1)
29.4(84.9)
35.1(95.2)
35.6(96.1)
40.2(104.4)
38.1(100.6)
35.0(95.0)
29.5(85.1)
21.1(70.0)
17.4(63.3)
40.2(104.4)
Mean daily maximum °C (°F)
8.4(47.1)
9.0(48.2)
11.7(53.1)
15.0(59.0)
18.4(65.1)
21.6(70.9)
23.9(75.0)
23.4(74.1)
20.2(68.4)
15.8(60.4)
11.5(52.7)
8.8(47.8)
15.7(60.3)
Daily mean °C (°F)
5.6(42.1)
5.8(42.4)
7.9(46.2)
10.5(50.9)
13.7(56.7)
16.8(62.2)
19.0(66.2)
18.7(65.7)
15.9(60.6)
12.3(54.1)
8.4(47.1)
5.9(42.6)
11.7(53.1)
Mean daily minimum °C (°F)
2.7(36.9)
2.7(36.9)
4.1(39.4)
6.0(42.8)
9.1(48.4)
12.0(53.6)
14.2(57.6)
14.1(57.4)
11.6(52.9)
8.8(47.8)
5.3(41.5)
3.1(37.6)
7.8(46.0)
Record low °C (°F)
−16.1(3.0)
−13.9(7.0)
−8.9(16.0)
−5.6(21.9)
−3.1(26.4)
−0.6(30.9)
3.9(39.0)
2.1(35.8)
1.4(34.5)
−5.5(22.1)
−7.1(19.2)
−17.4(0.7)
−17.4(0.7)
Average precipitation mm (inches)
58.8(2.31)
45.0(1.77)
38.8(1.53)
42.3(1.67)
45.9(1.81)
47.3(1.86)
45.8(1.80)
52.8(2.08)
49.6(1.95)
65.1(2.56)
66.6(2.62)
57.1(2.25)
615.0(24.21)
Average precipitation days (≥ 1.0 mm)
11.5
9.5
8.5
8.8
8.0
8.3
7.9
8.4
7.9
10.8
11.2
10.8
111.7
Average relative humidity (%)
80
77
70
65
67
65
65
69
73
78
81
81
73
Average dew point °C (°F)
3(37)
2(36)
2(36)
4(39)
7(45)
10(50)
12(54)
12(54)
10(50)
9(48)
6(43)
3(37)
7(44)
Mean monthly sunshine hours
61.1
78.8
124.5
176.7
207.5
208.4
217.8
202.1
157.1
115.2
70.7
55.0
1,674.8
Percentage possible sunshine
23
28
31
40
41
41
42
45
40
35
27
21
35
Average ultraviolet index
1
1
2
4
5
6
6
5
4
2
1
0
3
Source 1: Met Office Royal Netherlands Meteorological Institute
Source 2: Weather Atlas (percent sunshine and UV Index) CEDA Archive TORRO Time and Date
See Climate of London for additional climate information.
^ Averages are taken from Heathrow, and extremes are taken from stations across London.
Areas[edit]
Main articles: List of areas of London and London boroughs
The West End theatre district in 2016
Places within London are identified using area names, such as Mayfair, Southwark, and Whitechapel. These are informal designations, reflect the names of villages that have been absorbed by sprawl, or are superseded administrative units. Since 1965, Greater London has been divided into 32 London boroughs in addition to its once walled ancient core, the City of London. The City of London is the main financial district, and Canary Wharf has developed into a new financial and commercial hub in the Docklands. The West End is an area of inner West London with the main shopping and entertainment areas, including West End theatre, and attracts many tourists. Its residential areas where properties can sell for tens of millions of pounds. The East End is the part of East London closest to the City of London. It has a high immigrant population and is one of the poorest areas of the capital. It once included the main northern part of the Port of London and extensive industry. In the late 20th century, deindustrialisation and the closure of the docks brought hardship. Large redeveloped brownfield areas include London Riverside and the Lower Lea Valley, which was developed into the Olympic Park for the 2012 Olympics.
Architecture[edit]
Main articles: Architecture of London, List of tallest buildings and structures in London, and List of demolished buildings and structures in London
London's buildings are of many architectural styles and ages. Many grand houses and public buildings, such as the National Gallery, are constructed from Portland stone. Some areas, particularly just west of the centre, are characterised by white stucco or whitewashed buildings. Few structures in central London pre-date the Great Fire of 1666, other than the Tower of London. Further out is the Tudor-period Hampton Court Palace. The 17th-century is represented by Christopher Wren churches alongside neoclassical financial institutions such as the Royal Exchange and the Bank of England, and the 1960s Barbican Estate. The 1939 Battersea Power Station by the river in the south-west is a local landmark, while the St. Pancras and Paddington railway termini exemplify Victorian architecture.
The Tower of London, a medieval castle, dating in part to 1078
The east wing public façade of Buckingham Palace was built between 1847 and 1850; it was remodelled to its present form in 1913.
Trafalgar Square and its fountains, with Nelson's Column on the right
The Monument to the Great Fire of London in the City of London provides views of the surrounding area while commemorating the Great Fire of London, which originated nearby. Marble Arch and Wellington Arch, at the north and south ends of Park Lane, have royal connections, as do the Albert Memorial and Royal Albert Hall in Kensington. Nelson's Column in Trafalgar Square is a focal point. Older buildings are mainly brick, commonly the yellow London stock brick.
In the dense areas, most of the concentration is via medium- and high-rise buildings. London's skyscrapers, such as 30 St Mary Axe, Tower 42, the Broadgate Tower and One Canada Square, are mostly in the two financial districts, the City of London and Canary Wharf. High-rise development has been restricted since 1937 if it would obstruct protected views of St Paul's Cathedral. There are skyscrapers in Central London, including the 95-storey Shard London Bridge, the tallest building in the UK and Western Europe. Modern buildings include The Scalpel, 20 Fenchurch Street, the former City Hall in Southwark, the Art Deco BBC Broadcasting House, the Postmodernist British Library near Kings Cross, No 1 Poultry, the BT Tower and The O2 Arena.
The Houses of Parliament and Elizabeth Tower (Big Ben) on the right foreground, the London Eye on the left foreground and The Shard with Canary Wharf in the background; seen in September 2014
Natural history[edit]
See also: List of local nature reserves in Greater London
London has some 10,000 red foxes.
The London Natural History Society suggests that London is "one of the World's Greenest Cities" with more than 40% green space or open water, 2000 species of flowering plant, and 120 species of fish. Over 60 species of bird nest in central London, with 47 species of butterfly, 1,173 moths and more than 270 kinds of spider. London's wetland areas support nationally important populations of water birds. In 2024 there were some 3 million pigeons in London. At least six ravens are kept at the Tower of London. London has 38 Sites of Special Scientific Interest (SSSIs), two national nature reserves and 76 local nature reserves.
Amphibians include smooth newts, frogs, toadss palmate newts, and great crested newts. Native reptiles such as slowworms, lizards, grass snakes and adders, are mostly seen only in Outer London.
London has some 10,000 red foxes, as well as hedgehogs, mice, rabbits, shrews, voles and grey squirrels. In wilder areas of Outer London, such as Epping Forest, there are also hare, badger, voles, wood mouse, yellow-necked mouse, mole, shrew and weasel. Otters are starting to return after a hundred years absent from the city. Ten of England's eighteen species of bats have been recorded in Epping Forest.
Herds of red and fallow deer roam in Richmond and Bushy Parks. They are culled each November and February to keep their populations sustainable. Epping Forest is known for its fallow deer, which can be seen in herds to the north of the Forest. A rare population of melanistic, black fallow deer is maintained at the Deer Sanctuary near Theydon Bois, while muntjac are found in the forest. While Londoners are accustomed to birds and foxes sharing the city, urban deer have become a regular feature, and herds of fallow deer come into residential areas at night.