#1Croydon
389,242 peopleJuly high·19 days of 25°C+ a year·#2,106 of 2,537 in England, Scotland, Wales and Northern Ireland
Croydon, #1 on this list · Photo: Stephen Richards · CC BY-SA 2.0London rankings · Climate
Towns with the coolest summers in London
Croydon has the coolest summers of London’s 33 boroughs: July afternoons average a high of 22.7°C (Met Office, 1991–2020). The typical town here averages 23.5°C.
The average July high (the warmest month’s afternoons). Met Office HadUK-Grid 1991–2020 averages on its 2 km grid, the cells inside each town averaged (contains Met Office data © Crown copyright). A described list: no letters. The rank across England, Scotland, Wales and Northern Ireland sits beside each figure.
#122.7°C
#2Bromley
325,469 peopleJuly high·20 days of 25°C+ a year·#2,268 of 2,537 in England, Scotland, Wales and Northern Ireland
#3Barnet
388,572 peopleJuly high·22 days of 25°C+ a year·#2,356 of 2,537 in England, Scotland, Wales and Northern Ireland
All 33 boroughs, ranked
July high, lowest first. Temperatures are ranked on two decimals and shown to one, so two towns showing the same figure can rank apart; towns smaller than a 2 km cell share its figures. Towns with the same figure share a rank (T = tied). Each rank across England, Scotland, Wales and Northern Ireland links to the national list.
33 boroughs.
#TownJuly highDays 25°C+UK rank
Quick answers
Questions people ask
Which town in London has the coolest summers?
Croydon: July afternoons average a high of 22.7°C, with 19 days of 25°C or more in a typical year. Bromley and Barnet follow.
How are these towns ranked?
By the average July high, lowest first, from the Met Office’s 1991–2020 averages on its 2 km grid: the cells inside the town, or the one nearest its centre for a town smaller than a cell. The figure is the one on each town’s Climate page.
Why isn’t my town on this list?
The list covers London’s towns of 2,500+ with the figure. Smaller places show it on their own pages; every town in London is on the county page.
Go deeper
All London rankings →More London lists
Every list ranks the same 2,500+ boroughs, so a borough’s rank means the same thing on each.
Best places to live33 boroughs · #1 Richmond upon ThamesMost affordable towns33 boroughs · #1 SuttonSafest towns33 boroughs · #1 Richmond upon ThamesTowns with the best schools33 boroughs · #1 Richmond upon ThamesHealthiest towns33 boroughs · #1 City of LondonBest towns for jobs & income33 boroughs · #1 City of LondonMost walkable towns33 boroughs · #1 City of London and 2 moreTowns with the lowest flood risk33 boroughs · #1 Camden and 4 moreBest towns for the outdoors33 boroughs · #1 BexleyMost historic towns33 boroughs · #1 WestminsterTowns with the most civic life33 boroughs · #1 City of LondonTowns with the highest household incomes33 boroughs · #1 Richmond upon ThamesDescribed, no lettersTowns with the lowest council tax33 boroughs · #1 WandsworthDescribed, no lettersTowns with the mildest winters33 boroughs · #1 City of LondonDescribed, no lettersTowns with the warmest summers33 boroughs · #1 IslingtonDescribed, no lettersTowns with the fewest frosts33 boroughs · #1 City of LondonDescribed, no lettersDriest towns33 boroughs · #1 Barking and Dagenham and NewhamDescribed, no lettersWettest towns33 boroughs · #1 CroydonDescribed, no letters
County by county
Towns with the coolest summers, county by county
AberdeenshireBedfordshireBerkshireBuckinghamshireCambridgeshireCheshireClwydCornwallCounty DurhamCumbriaDerbyshireDevonDorsetDyfedEast Riding of YorkshireEast SussexEssexFifeGloucestershireGreater ManchesterGwentHampshireHertfordshireHighlandKentLancashireLeicestershireLincolnshireLondonMerseysideMid GlamorganNorfolkNorth LanarkshireNorth YorkshireNorthamptonshireNorthumberlandNottinghamshireOxfordshireShropshireSomersetSouth LanarkshireSouth YorkshireStaffordshireSuffolkSurreyTyne and WearWarwickshireWest GlamorganWest MidlandsWest SussexWest YorkshireWiltshireWorcestershire
Sources: . All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.