Île-de-France, France
Orsay
Orsay is a small town in Île-de-France, France. It has a population of about 16,498 (2023). The climate is classified as oceanic (Köppen Cfb), with rain spread through the year and no real dry season.
Now13°C
Best timeJun–Jul · Sep
Population16,498
Local time14:15
48.70° N, 2.19° EElevation 88 mUTC+1 · Central European Standard Time
Postal code91400October: high / low16° / 8°
Rain this month70mm
Best timeJun–Jul · Sep
Best: Jun–Jul · Sep. Warmth, sunshine and dry days, month by month.
Orsay at a glance
Sunrise · sunset07:28 · 17:4310 h 15 min of daylightThe moon tonightFull moon100% · Moonrise 17:21Northern lights tonightUnlikely tonightKp needed: 8.7Next 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
58 mm of rain
Driest monthFebruary
49 mm of rain
Monuments nearby10+
1 of them World Heritage
Weather in Orsay
Now and the next ten days. The 14 and 30-day outlooks are one click away.
13°C
Today hour by hourCloudy · wind 17 km/h · humidity 74%
Today26 Oct15°8°
Tue27 Oct18°10°0.7 mm
Wed28 Oct15°7°
Thu29 Oct15°6°
Fri30 Oct14°5°
Sat31 Oct12°5°
Sun1 Nov11°4°
Mon2 Nov10°5°
Tue3 Nov10°4°
When to go to Orsay
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 | 38 | 62 | 67 | 71 | 70 | 70 | 76 | 56 | 26 | 18 |
| High | 7° | 9° | 13° | 16° | 20° | 23° | 26° | 26° | 22° | 16° | 11° | 8° |
| Low | 2° | 2° | 4° | 6° | 10° | 13° | 14° | 14° | 11° | 8° | 5° | 3° |
| Rain (mm) | 58 | 49 | 54 | 53 | 68 | 56 | 63 | 56 | 51 | 70 | 56 | 67 |
| Wet days | 13 | 11 | 12 | 10 | 12 | 11 | 11 | 11 | 9 | 12 | 12 | 13 |
What's on in Orsay
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Orsay
Outdoors around Orsay
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Parc animalier de JanvryZoos
0.4 kmHuttopia VersaillesCamp sites
0.7 kmDomaine de BellevueViewpoints
0.8 kmBlocpark ArkoseClimbing
1.1 kmViaduc des FauvettesViewpoints · 130 m
1.1 kmParc de la FontaineCamp sites
1.3 kmEspace plongée du centre aquatique PajeaudDive site
9 kmAquatik PlongéeDive site
11 kmFadis DivingDive site
11 kmFadis DivingDive site
13 kmNature around Orsay
Wildlife in October
The birds and mammals of France seen most this month, compared with the rest of their year.
The sky over Orsay
Earthquakes around Orsay
The last 30 days within 300 km, and the record since 1950.
Universities and research institutes
Institut d'optique théorique et appliquée, Institut d’Optique Graduate SchoolUniversity or college · founded 1917
Laboratoire Aimé CottonResearch institute · founded 1927
Laboratory of Solid State PhysicsResearch institute · founded 1959
Fluides, Automatique et Systèmes ThermiquesResearch institute · founded 1997
Bibliothèque Jacques HadamardResearch institute · founded 1998
Institut Galien Paris-SaclayResearch institute · founded 1998
Mathematics Laboratory of OrsayResearch institute · founded 1998
Laboratory of Theoretical Physics and Statistical ModelsResearch institute · founded 1998
Laboratoire de Physique des Gaz et des PlasmasResearch institute · founded 1998
Institut de Chimie PhysiqueResearch institute · founded 2000
Ecologie, Société, EvolutionResearch institute · founded 2002
Geosciences Paris-SaclayResearch institute · founded 2004
Institut de Chimie Moléculaire et des Matériaux d'OrsayResearch institute · founded 2006
Institut des Sciences Moléculaires d'OrsayResearch institute · founded 2010
Genome Integrity, RNA and CancerResearch institute · founded 2010
Microbiologie de l’alimentation au service de la santéResearch institute · founded 2010
Chemistry and Modelling for Biology of CancerResearch institute · founded 2015
Paris-Saclay Institute of Therapeutic InnovationResearch institute · founded 2015
Institut des Sciences des Plantes de Paris SaclayResearch institute · founded 2015
CELESTE: mathematical statistics and learningResearch institute · founded 2020
Laboratoire d'Imagerie Biomédicale Multimodale Paris-SaclayResearch institute · founded 2020
Laboratory of Translational Imaging in OncologyResearch institute · founded 2020
Démonstrateur préindustriel Ferments du FuturResearch institute · founded 2022
Imaging, Innovative Radiotherapy, and Systems MedicineResearch institute · founded 2026
Stratégies d’investigations analytiques : Médicaments, bioMatériaux, tissus et Matrices biologiquesResearch institute · founded 2026
Complexité, Innovation et Activités Motrices et SportivesResearch institute
Inflammation, Microbiome and ImmunosurveillanceResearch institute
Institut de Biochimie et Biophysique Moléculaire et CellulaireResearch institute
Interactions Cellulaires et Physiopathologie HépathiqueResearch institute
Laboratory of the Physics of the Two Infinities Irène Joliot-CurieResearch institute
Laboratoire d’excellence Physique Atomes Lumière MatièreResearch institute
Towns and villages around Orsay
Each with its own page: weather, climate and the best time to visit.
Bures-sur-Yvette1.3 kmLe Guichet1.4 kmLa Charmille1.4 kmMondétour1.8 kmLe Val-d'Yvette2 kmLes Ulis2 kmLozère2.3 kmMontjay2.3 kmVilleziers2.8 kmFretay3.2 kmLe Plateau3.5 kmGrivery3.7 kmSaint-Jean-de-Beauregard3.8 kmVillejust3.9 kmSaint-Aubin3.9 kmVillebon-sur-Yvette4 kmGometz-le-Châtel4.1 kmGif-sur-Yvette4.2 kmSaclay4.3 kmVauhallan4.4 kmLe Pileu4.7 kmGommonvilliers4.8 kmGometz-la-Ville5 kmLa Brosse5.1 kmPalaiseau5.2 kmLe Gué5.2 kmChevry5.4 kmNozay5.7 kmJanvry5.8 kmSaulx-les-Chartreux5.9 kmIgny6.1 kmVilliers-le-Bâcle6.2 kmLe Ménil6.4 kmLes Rochers de Saulx6.5 kmVillaine6.8 kmChamplan6.9 kmMulleron7.1 kmMarcoussis7.2 kmBièvres7.3 kmLa Ville-du-Bois7.5 kmLa Grange Aux Cercles7.7 kmMassy7.8 kmLongjumeau7.9 kmRoussigny8 kmVerrières-le-Buisson8.1 kmBallainvilliers8.6 kmFontenay-lès-Briis8.8 kmMontlhéry8.9 kmLes Molières9 kmLinas9.1 kmVilliers-sur-Orge9.2 kmBaillot9.3 kmBel-Air9.3 kmBriis-sous-Forges9.3 kmÉpinay-sur-Orge9.4 kmForges-les-Bains9.6 kmChilly-Mazarin9.7 kmAdelaïeau9.8 kmLa Plaine du Couvent9.8 kmLimours9.8 kmLongpont-sur-Orge9.8 kmGuipereux9.9 kmLe Breuil9.9 kmLes Bas Follets10 kmLe Perray10 kmLe Mauregard10 kmChaumusson10 kmVaux10 kmBoullay-les-Troux10 kmLe Parc10 kmLeuville-sur-Orge10 kmLes Cendrières11 kmLaunay-Maréchaux11 kmL'Aunay11 kmWissous11 kmLa Roche11 kmLa Grande-Folie11 kmCourson-Monteloup11 kmVerville11 kmLes Hauts de Bruyères11 km
Orsay from above
Around Orsay35 places to see, do and reach nearby
YvetteNature12 kmMérantaiseNature4.0 kmVaularonNature2.1 kmSalmouilleNature11 kmSaulx-les-Chartreux lakeNature6.6 kmRu de MarivelNature11 kmîle de la CitéNature21 kmîle Saint-Louis, Île-de-FranceNature21 kmEspace plongée du centre aquatique PajeaudDive site9.0 kmAquatik PlongéeDive site11 kmFadis DivingDive site11 kmchâteau de la Martinière, SaclayMonument2.6 kmAnneau de collisions d'OrsayMonument1.1 kmÉglise Saint-Matthieu de Bures-sur-YvetteMonument1.9 kmTemple de la GloireMonument1.1 kmtown hall of Les UlisMonument2.0 kmPalace of VersaillesMonument13 kmLa Seine MusicaleMonument15 kmGare de Versailles-ChantiersMonument12 kmMusée de l'OptométrieMuseum2.2 kmMus’XMuseum2.5 kmSciences ACOMuseum1.2 kmAlbarelleMuseum2.0 kmMusée de l'Histoire de FranceMuseum13 kmOrsay-VilleStation0.4 kmLe GuichetStation1.1 kmBures-sur-YvetteStation1.8 kmBeaugrenelleFerry port18 kmEmbarcadère du Chalet des ÎlesFerry port19 kmParisPlace21 kmVersaillesPlace13 kmNanterrePlace22 kmCréteilPlace23 kmBoulogne-BillancourtPlace16 kmMontmartrePlace25 km
Postal codes
91400
Codes for businesses and P.O. boxes · 19
91401 CEDEX91402 CEDEX91403 CEDEX91404 CEDEX91405 CEDEX91406 CEDEX91407 CEDEX91409 CEDEX91851 CEDEX91852 CEDEX91855 CEDEX91891 CEDEX91892 CEDEX91893 CEDEX91894 CEDEX91895 CEDEX91896 CEDEX91898 CEDEX91899 CEDEX
Getting to Orsay
Paris-Orly AirportORY
13 kmCharles de Gaulle International AirportCDG
44 kmBeauvais-Tillé airportBVA
85 kmOrsay-VilleRailway station
0.4 kmLe GuichetRailway station
1.1 kmBures-sur-YvetteRailway station
1.8 kmBeaugrenelleFerry port
18 kmEmbarcadère du Chalet des ÎlesFerry port
19 kmPlaces near Orsay
Places with a climate like Orsay
Matched month by month on temperature, rain and sunshine.
Frequently asked questions
When is the best time to visit Orsay?
Based on 30-year climate normals, June, July and September offer the best balance of comfortable temperatures, low rainfall and sunshine in Orsay.
What is the hottest month in Orsay?
July is the warmest month, with average highs of 26°C and lows of 14°C.
What is the coldest month in Orsay?
January is the coldest month, with average highs of 7°C and lows of 2°C.
What is the rainiest month in Orsay?
January is the wettest month with about 58 mm of precipitation on 13 wet days.
What is the postal code of Orsay?
Orsay has 20 postal codes: 91400, 91401 CEDEX, 91402 CEDEX, 91403 CEDEX, 91404 CEDEX, 91405 CEDEX, 91406 CEDEX, 91407 CEDEX, 91409 CEDEX, 91851 CEDEX, 91852 CEDEX, 91855 CEDEX ….