The London Borough of Croydon has over 120 parks and open spaces within its boundaries, ranging from the 200 acre (80ha) Selsdon Wood Nature Reserve to many recreation grounds and sports fields scattered throughout the Borough. Croydon covers an area of 86.52 km², the 256th largest district in England. Croydon's physical features consist of many hills and rivers that are spread out across the borough and into the North Downs, Surrey and the rest of South London. Some of the open spaces in Croydon form part of the well-known London LOOP walks where the first section was opened on May 3, 1996, with a ceremony on Farthing Downs in Coulsdon. As a borough in Outer London it also contains some open countryside in the form of country parks. Croydon Council is associated with several other boroughs who are taking part in the Downlands Countryside Management Project. These boroughs are Sutton; and by Surrey County Council; the City of London Corporation; the Surrey districts of Reigate and Banstead and Tandridge; and the Countryside Agency. An additional partner is Natural Britain.
Duppas Hill was Croydon's first public recreation ground, bought by the Board of Health in 1865. Addington Hills is a major floodplain in London for the Thames Valley and is recognised as a significant obstacle to the growth of London from its origins as a port on the north side of the river, to a large circular city. Mitcham Common also forms part of the borough although it is only partly in Croydon, the London Borough of Merton has the dominant half of the common, while Sutton make up most of the south side.
There are also many recreation grounds such as the one in South Norwood which is currently undergoing major refurbishment works. Examples of meadows include Heavers Meadow and Brickfields Meadow both located in South Norwood.
The Great North Wood was a natural oak forest that covered the Sydenham Ridge and the southern reaches of the River Effra and its tributaries. It is a major part of the history of Croydon. The most notable tree, called Vicar's Oak, marked the boundary of four ancient parishes; Lambeth, Camberwell, Croydon and Bromley. John Aubrey referred to this "ancient remarkable tree" in the past tense as early as 1718, but according to JB Wilson, the Vicar's Oak survived until 1825. The earliest surviving mention of the wood dates from assize records in 1272, and it was known to be owned by the Whitehorse family during the reign of King Edward III. When Oliver Cromwell seized it from the Archbishop of Canterbury it was measured to cover 830 acres (3.4 km2), but held only 9,200 oaken pollards. At this time it was known to stretch as far as Streatham from Croydon. Much timber was taken from the woodlands for use in the Royal Dockyard at Deptford as well for charcoal burning and building purposes. Much of the surviving woodlands were cleared and developed as a result of the 1797 Croydon Inclosure Act and sale of the late Lord Thurlow's estates in 1806, although some substantial fragments remain, notably the nature reserves at Dulwich Wood and Sydenham Hill Wood.
The River Wandle is also a major tributary of the River Thames, where it stretches to Wandsworth and Putney for 9 miles (14 km) from its main source in Waddon. It forms a rough western boundary with the London Borough of Sutton, and for part of its length forms the boundary between the London Boroughs of Croydon and Lambeth The main river ends at Waddon with one of its tributaries ending in Selhurst. Another tributary starts in Thornton Heath as the Norbury Brook, becomes the River Graveney and joins the Wandle near Summerstown.
The Wandle park is one of 11 parks throughout Greater London chosen to receive money for redevelopment by a public vote. The park received £400,000 towards better footpaths, more lighting, refurbished public toilets and new play areas for children.
The amount of green spaces in area can affect the climate of that particular area. Croydon has a temperate climate in common with most areas of Great Britain, it is similar to that of Greenwich in Inner London: its Koppen climate classification is Cfb. Its mean annual temperature of 9.6 °C is similar to that experienced throughout the Weald, and slightly cooler than nearby areas such as the Sussex coast and Central London. Rainfall is considerably below England's average (1971–2000) level of 838 mm, and every month is drier overall than the England average.
|Average high °F||38||39||42||46||52||57||61||61||56||51||43||40||49|
|Average low °F||34||34||36||38||44||50||53||52||48||44||48||36||42|
|Average high °C||3||4||5||7||11||14||16||16||13||10||6||4||9|
|Average low °C||5||5||6||8||10||13||15||16||13||11||8||5||9|
|Source: Weatherbase  Nov 2007|