Editing Le Havre (section)

===Climate===
[[File:Diagramme Climatique du Havre.png|thumb|[[Climograph|Climatic Graph]] for Le Havre]]

Due to its location on the coast of the Channel, the climate of Le Havre is [[temperate]] [[Oceanic climate|oceanic]]. Days without wind are rare. There are maritime influences throughout the year. According to the records of the meteorological station of the [[Sainte-Adresse|Cap de la Heve]] (from 1961 to 1990), the temperature drops below {{convert|0|C|F}} on 24.9 days per year and it rises above {{convert|25|°C|0}} on 11.3 days per year. The average annual sunshine duration is 1,785.8 hours per year.<ref name=Infoclimat/>

Precipitation is distributed throughout the year, with a maximum in autumn and winter. The months of June and July are marked by some thunderstorms on average 2 days per month.<ref name=Infoclimat/> One of the characteristics of the region is the high variability of the temperature, even during the day.<ref name="Auger42">P. Auger, G. Granier, ''The Guide to Pays de Caux'', 1993, p. 42 {{in lang|fr}}</ref> The prevailing winds are from the southwest sector for strong winds and north-north-east for breezes,<ref>[http://seine-aval.crihan.fr/web/SilverpeasWebFileServer/3993656065Ifr_Seine_aval_02.pdf?ComponentId=kmelia106&SourceFile=1161364849854.pdf&MimeType=application/pdf&Directory=Attachment/Images/&logicalName=3993656065Ifr_Seine_aval_02.pdf ''Currents, flows, and tides: The movements of water''] {{Webarchive|url=https://web.archive.org/web/20130718041937/http://seine-aval.crihan.fr/web/SilverpeasWebFileServer/3993656065Ifr_Seine_aval_02.pdf?ComponentId=kmelia106&SourceFile=1161364849854.pdf&MimeType=application%2Fpdf&Directory=Attachment%2FImages%2F&logicalName=3993656065Ifr_Seine_aval_02.pdf |date=18 July 2013 }}, Pierre Le Hir, Ricardo Silva Jacinto, Ifremer, 2001, consulted on 31 July 2012 {{in lang|fr}}</ref> snowstorms occur in winter, especially in January and February.<ref name=Infoclimat/>

[[File:Photojanvier2005CLG 002.jpg|thumb|Le Havre under snow]]

The absolute speed record for wind at Le Havre – Cap de la Heve was recorded on 16 October 1987 at {{convert|180|km/h|0|abbr=off}}.<ref name=Infoclimat/>

The main natural hazards are floods, storms, and [[storm surge]]s. The lower town is subject to a rising [[water table]].<ref name="carmen1">[http://carmen.developpement-durable.gouv.fr/17/DonneesnatureetpaysagesurlestuairedelaSeine.map ''Nature and Scenic information the estuary of the Seine''], Carmen, Haute-Normandie, consulted on 19 July 2012 {{in lang|fr}}</ref> The lack of watercourses within the commune prevents flooding from overflows. Le Havre's beach may rarely experience flooding known as "flooding from storms". These are caused by the combination of strong winds, high waves, and a large [[tidal range]].

{{Meteo France
|Town=Le Havre<ref name=Infoclimat/>
|Sunshine=1,786
|Rain=709
|Snow=11
|Storm=13
|Fog=53
}}

{{Weather box
|location = Le Havre (located in Cap de la Heve, 1991–2020 normals, extremes 1913–present)
|metric first = yes
|single line = yes
|Jan record high C = 15.0
|Feb record high C = 20.0
|Mar record high C = 24.5
|Apr record high C = 26.5
|May record high C = 30.0
|Jun record high C = 34.7
|Jul record high C = 38.1
|Aug record high C = 36.3
|Sep record high C = 33.6
|Oct record high C = 28.5
|Nov record high C = 20.0
|Dec record high C = 16.4
|year record high C = 38.1
|Jan high C = 7.6
|Feb high C = 8.0
|Mar high C = 10.5
|Apr high C = 13.3
|May high C = 16.2
|Jun high C = 19.0
|Jul high C = 20.9
|Aug high C = 21.2
|Sep high C = 19.1
|Oct high C = 15.5
|Nov high C = 11.3
|Dec high C = 8.4
|year high C = 14.3
|Jan mean C = 5.7
|Feb mean C = 6.0
|Mar mean C = 8.1
|Apr mean C = 10.4
|May mean C = 13.3
|Jun mean C = 16.0
|Jul mean C = 18.0
|Aug mean C = 18.4
|Sep mean C = 16.4
|Oct mean C = 13.1
|Nov mean C = 9.3
|Dec mean C = 6.5
|year mean C = 11.8
|Jan low C = 3.9
|Feb low C = 3.9
|Mar low C = 5.6
|Apr low C = 7.5
|May low C = 10.3
|Jun low C = 13.1
|Jul low C = 15.1
|Aug low C = 15.6
|Sep low C = 13.7
|Oct low C = 10.8
|Nov low C = 7.4
|Dec low C = 4.7
|year low C = 9.3
|Jan record low C = -13.8
|Feb record low C = -12.5
|Mar record low C = -7.8
|Apr record low C = -1.0
|May record low C = 1.2
|Jun record low C = 4.4
|Jul record low C = 8.0
|Aug record low C = 8.4
|Sep record low C = 3.3
|Oct record low C = -0.2
|Nov record low C = -8.5
|Dec record low C = -8.6
|year record low C = -13.8
|precipitation colour = green
|Jan precipitation mm = 67.5
|Feb precipitation mm = 53.7
|Mar precipitation mm = 52.5
|Apr precipitation mm = 52.3
|May precipitation mm = 56.5
|Jun precipitation mm = 58.0
|Jul precipitation mm = 48.7
|Aug precipitation mm = 66.0
|Sep precipitation mm = 65.4
|Oct precipitation mm = 86.2
|Nov precipitation mm = 87.5
|Dec precipitation mm = 95.5
|year precipitation mm = 789.8
|unit precipitation days = 1.0 mm
|Jan precipitation days = 12.4
|Feb precipitation days = 11.2
|Mar precipitation days = 10.1
|Apr precipitation days = 9.6
|May precipitation days = 9.0
|Jun precipitation days = 8.6
|Jul precipitation days = 7.8
|Aug precipitation days = 9.2
|Sep precipitation days = 9.1
|Oct precipitation days = 12.4
|Nov precipitation days = 13.5
|Dec precipitation days = 14.7
|year precipitation days = 127.7
|Jan snow days = 2.3
|Feb snow days = 3.0
|Mar snow days = 2.1
|Apr snow days = 1.0
|May snow days = 0.1
|Jun snow days = 0.0
|Jul snow days = 0.0
|Aug snow days = 0.0
|Sep snow days = 0.0
|Oct snow days = 0.0
|Nov snow days = 1.0
|Dec snow days = 1.5
|year snow days = 11.0
|Jan humidity = 87
|Feb humidity = 85
|Mar humidity = 84
|Apr humidity = 81
|May humidity = 81
|Jun humidity = 83
|Jul humidity = 83
|Aug humidity = 82
|Sep humidity = 82
|Oct humidity = 85
|Nov humidity = 86
|Dec humidity = 87
|year humidity = 83.8
|Jan sun = 62.9
|Feb sun = 87.7
|Mar sun = 136.2
|Apr sun = 179.5
|May sun = 214.6
|Jun sun = 224.4
|Jul sun = 237.8
|Aug sun = 218.5
|Sep sun = 168.3
|Oct sun = 124.5
|Nov sun = 74.7
|Dec sun = 56.7
|year sun = 1785.8
|source 1 = [[Météo France]]<ref>
{{cite web
| url = https://donneespubliques.meteofrance.fr/FichesClim/FICHECLIM_76552001.pdf
| title = Cap-de-la-Heve (76)
| work = Fiche Climatologique: Statistiques 1991–2020 et records
| publisher = Meteo France
| language = fr
| access-date = 14 July 2022}}</ref><ref>{{cite web
| url = http://www.meteofrance.fr/actualites/74529640-canicule-la-france-a-connu-hier-une-chaleur-record-au-niveau-national
| title = Canicule : la France a connu hier une chaleur record au niveau national
| language = fr
| publisher = [[Météo-France]]
| access-date = 26 July 2019
| archive-date = 31 July 2019
| archive-url = https://web.archive.org/web/20190731135221/http://www.meteofrance.fr/actualites/74529640-canicule-la-france-a-connu-hier-une-chaleur-record-au-niveau-national
| url-status = dead
}}</ref>
|source 2 = Infoclimat.fr (humidity, snowy days and sun, 1961–1990)<ref name=Infoclimat>{{cite web
| archive-url = https://web.archive.org/web/20160315133503/http://www.infoclimat.fr/climatologie-07028-le-havre-cap-de-la-heve.html
| archive-date = 15 March 2016
| url = http://www.infoclimat.fr/climatologie-07028-le-havre-cap-de-la-heve.html
| title = Normes et records 1961–1990: Le Havre – Cap de la Hève (76) – altitude 100m
| language = fr
| publisher = Infoclimat
| access-date = 5 January 2016
| url-status = live
}}</ref>
}}