Île-de-France, France
Poissy
Poissy is a town in Île-de-France, France. It has a population of about 40,983 (2023). The climate is classified as oceanic (Köppen Cfb), with rain spread through the year and no real dry season.
Now16°C
Best timeJun–Jul · Sep
Population40,983
Local time18:27
48.93° N, 2.05° EElevation 31 mUTC+2 · Central European Summer Time
Postal code78300October: high / low17° / 9°
Rain this month68mm
Best timeJun–Jul · Sep
Best: Jun–Jul · Sep. Warmth, sunshine and dry days, month by month.
Poissy at a glance
Sunrise · sunset08:23 · 18:5110 h 28 min of daylightThe moon tonightWaxing gibbous86% · Moonrise 17:25Northern lights tonightUnlikely tonightKp needed: 8.5Next holiday1 NovemberAll Saints' DayNext eclipse21 Feb 2027Penumbral lunar eclipse
Best time to visitJun–Jul · Sep
The months with the highest weather score
Warmest month26°C
Average high in July
Coolest month2°C
Average low in January
Wettest monthJanuary
55 mm of rain
Driest monthFebruary
46 mm of rain
Monuments nearby10+
1 of them World Heritage
How Poissy has grown
People living in the built-up area (24 km² today), every five years since 1975; 2030 is the projection.
+20%64k in 1975 → 77k in 2025Weather in Poissy
Now and the next ten days. The 14 and 30-day outlooks are one click away.
16°C
Today hour by hourCloudy · wind 16 km/h · humidity 69%
Today22 Oct16°9°2.4 mm
Fri23 Oct14°8°5.3 mm
Sat24 Oct13°7°9.7 mm
Sun25 Oct16°12°10.8 mm
Mon26 Oct17°8°5.3 mm
Tue27 Oct21°15°
Wed28 Oct17°11°
Thu29 Oct16°7°
Fri30 Oct16°6°
Sat31 Oct16°8°
When to go to Poissy
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 18 | 25 | 39 | 64 | 67 | 71 | 70 | 70 | 76 | 57 | 28 | 18 |
| High | 8° | 9° | 13° | 16° | 20° | 23° | 26° | 26° | 22° | 17° | 11° | 8° |
| Low | 2° | 2° | 4° | 6° | 10° | 13° | 14° | 14° | 11° | 9° | 5° | 3° |
| Rain (mm) | 55 | 46 | 51 | 49 | 62 | 52 | 57 | 51 | 46 | 68 | 53 | 64 |
| Wet days | 13 | 11 | 12 | 10 | 12 | 11 | 11 | 11 | 9 | 12 | 12 | 13 |
What's on in Poissy
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Poissy
1.3 km
maison de Fer (Poissy)Built 1896
0.8 km
Poissy stationBuilt 1843
0.5 km
Hôtel de Ville de PoissyBuilt 1936
1.1 km
Léo-Lagrange stadiumBuilt 1945
1.9 km
Église Saint-Louis de Beauregard de PoissyBuilt 1960
0.8 km
Collégiale Notre-Dame of Poissy
Museum0.9 km
Musée du jouet de PoissyMuseum0.9 km
Musée d'Art et d'Histoire de PoissyBuilt 1980More museums: Villa Savoye
Outdoors around Poissy
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
HapikClimbing
0.4 kmParkidsTheme parks
0.4 kmView over Le Vésinet, La Défense and ParisViewpoints
0.6 kmL'ïle du RoiCamp sites
0.6 kmClimb ArenaClimbing
0.7 kmFermes de Gally - Ferme pédagogiqueZoos
0.8 kmFadis DivingDive site
11 kmFadis DivingDive site
15 kmÉcole de PlongéeDive site
17 kmAquatik PlongéeDive site
17 kmNature around Poissy
Wildlife in October
The birds and mammals of France seen most this month, compared with the rest of their year.
The sky over Poissy
Earthquakes around Poissy
The last 30 days within 300 km, and the record since 1950.
Universities and research institutes
Institute of Formulation, Analysis and Quality Control ResearchResearch institute
Towns and villages around Poissy
Each with its own page: weather, climate and the best time to visit.
L'Abbaye0.9 kmCarrières-sous-Poissy2.4 kmLes Grésillons2.4 kmChambourcy2.6 kmÎle de La Dérivation2.9 kmVillage d'Hennemont3.5 kmAigremont3.5 kmAchères3.8 kmLes Terres Fleuries4 kmLes Coteaux du Bel-Air4.1 kmVillennes-sur-Seine4.5 kmLe Plateau du Bel-Air4.5 kmSaint-Germain-en-Laye4.7 kmFourqueux4.8 kmLa Daurade4.9 kmCarrières Sous Bois4.9 kmMédan4.9 kmLa Noë5 kmOrgeval5.3 kmChanteloup-les-Vignes5.4 kmMareil-Marly5.5 kmLe Pecq5.6 kmLe Mesnil-le-Roi5.6 kmAndrésy6 kmLe Mexique6.1 kmPissefontaine6.2 kmLe Port-Marly6.3 kmTriel-sur-Seine6.3 kmMontamets6.3 kmLes Grandes Terres6.5 kmLotissement La Borde6.6 kmL'Étang-la-Ville6.6 kmCité de La Garenne6.7 kmBures6.8 kmDomaine de Marsinval6.8 kmMontesson6.8 kmVernouillet6.9 kmSainte-Gemme7.2 kmLe Vésinet7.3 kmMarly-le-Roi7.4 kmMaisons-Laffitte7.5 kmMaurecourt7.5 kmVerneuil-sur-Seine7.9 kmSaint-Nom-la-Bretèche8 kmLes Cormiers8 kmL'Hautil8.1 kmMorainvilliers8.3 kmCroissy-sur-Seine8.5 kmFeucherolles8.6 kmLe Parc8.6 kmGaillon8.7 kmLa Croix Rouge8.8 kmPort Maron8.8 kmConflans-Sainte-Honorine8.8 kmLes Vergers de La Ranchère8.8 kmLe Grand Bray8.9 kmLouveciennes8.9 kmDomaine de La Tuilerie9.1 kmChatou9.1 kmLes Alouettes9.3 kmLa Main de Fer9.3 kmChavenay9.3 kmL'Union9.4 kmNoisy-le-Roi9.5 kmChapet9.5 kmLe Réveille-Matin9.5 kmLa Villa du Marais9.5 kmEcquevilly9.6 kmLes Trembleaux9.6 kmLes Alluets-le-Roi9.8 kmChennevières9.8 kmCarrières-sur-Seine9.8 kmBailly9.9 kmBougival10 kmLes Belles Vues10 kmLe Plan10 kmDomaine de La Croix Marie10 kmDavron10 kmHouilles10 kmRennemoulin11 km
Poissy from above
Around Poissy35 places to see, do and reach nearby
OiseNature6.7 kmRu d'OrgevalNature11 kmRu de BuzotNature7.1 kmBièvre, Île-de-FranceNature24 kmÉtang de Saint-QuentinNature16 kmGrand Canal of VersaillesNature14 kmîle des ImpressionnistesNature9.3 kmîle de PlataisNature4.5 kmFadis DivingDive site11 kmFadis DivingDive site15 kmÉcole de PlongéeDive site17 kmmaison de Fer (Poissy)Monument1.3 kmPoissy stationMonument0.8 kmHôtel de Ville de PoissyMonument0.5 kmLéo-Lagrange stadiumMonument1.1 kmÉglise Saint-Louis de Beauregard de PoissyMonument1.9 kmCollégiale Notre-Dame of PoissyMonument0.8 kmVilla SavoyeMonument1.6 kmChâteau de Villiers, PoissyMonument1.9 kmMusée du jouet de PoissyMuseum0.8 kmMusée d'Art et d'Histoire de PoissyMuseum0.8 kmMusée de l'Histoire de FranceMuseum15 kmNational Archaeological MuseumMuseum4.8 kmGalerie des BataillesMuseum15 kmPoissyStation0.8 kmVillennes-sur-SeineStation3.8 kmAchères Grand CormierStation4.3 kmEmbarcadère pour l'Île du PlataisFerry port4.3 kmEmbarcation de l'île NancyFerry port5.9 kmParisPlace23 kmVersaillesPlace15 kmNanterrePlace12 kmBoulogne-BillancourtPlace17 kmMontmartrePlace22 km15th arrondissement of ParisPlace21 km
Postal codes
78300
Codes for businesses and P.O. boxes · 9
78301 CEDEX78302 CEDEX78303 CEDEX78304 CEDEX78306 CEDEX78307 CEDEX78308 CEDEX78309 CEDEX78915 CEDEX
Getting to Poissy
Paris-Orly AirportORY
32 kmCharles de Gaulle International AirportCDG
38 kmBeauvais-Tillé airportBVA
59 kmPoissyRailway station
0.8 kmVillennes-sur-SeineRailway station
3.8 kmAchères Grand CormierRailway station
4.3 kmEmbarcadère pour l'Île du PlataisFerry port
4.3 kmEmbarcation de l'île NancyFerry port
5.9 kmPlaces near Poissy
Places with a climate like Poissy
Matched month by month on temperature, rain and sunshine.
Frequently asked questions
When is the best time to visit Poissy?
Based on 30-year climate normals, June, July and September offer the best balance of comfortable temperatures, low rainfall and sunshine in Poissy.
What is the hottest month in Poissy?
July is the warmest month, with average highs of 26°C and lows of 14°C.
What is the coldest month in Poissy?
January is the coldest month, with average highs of 8°C and lows of 2°C.
What is the rainiest month in Poissy?
January is the wettest month with about 55 mm of precipitation on 13 wet days.
What is the postal code of Poissy?
Poissy has 10 postal codes: 78300, 78301 CEDEX, 78302 CEDEX, 78303 CEDEX, 78304 CEDEX, 78306 CEDEX, 78307 CEDEX, 78308 CEDEX, 78309 CEDEX, 78915 CEDEX.