Lake Water Temperature
Freshwater temperatures for 525 of the world's most-swum lakes, lochs and reservoirs — monthly averages, the swim season, and a live estimate refined with today's air temperature. Open the interactive lake temperature map, the live sea temperature map, or compare lakes side by side. For moving water, see river & swimming hole temperatures.
United States
Lake TahoeCalifornia / Nevada19°CSeptemberLake MichiganGreat Lakes20.7°CSeptemberLake SuperiorGreat Lakes14.1°CSeptemberLake ErieGreat Lakes22.5°CSeptemberLake HuronGreat Lakes18.8°CSeptemberLake OntarioGreat Lakes20.7°CSeptemberLake PowellUtah / Arizona24.8°CSeptemberLake MeadNevada / Arizona27.8°CSeptemberLake HavasuArizona28.8°CSeptemberLake GeorgeNew York22.6°CSeptemberLake ChamplainVermont / New York21.6°CSeptemberLake WinnipesaukeeNew Hampshire22.5°CSeptemberLake of the OzarksMissouri26.5°CSeptemberLake TravisTexas27.9°CSeptemberLake LanierGeorgia27.7°CSeptemberLake NormanNorth Carolina27.7°CSeptemberLake OkeechobeeFlorida29.2°CSeptemberCrater LakeOregon15.1°CSeptemberLake Coeur d'AleneIdaho20.8°CSeptemberFlathead LakeMontana18.9°CSeptemberLake ChelanWashington20.9°CSeptemberLake WashingtonWashington21.9°CSeptemberLake SammamishWashington22.9°CSeptemberLake UnionWashington21.9°CSeptemberLake CrescentWashington16.3°CSeptemberPriest LakeIdaho19.8°CSeptemberLake Pend OreilleIdaho19.9°CSeptemberBear LakeUtah / Idaho20.8°CSeptemberRedfish LakeIdaho17°CSeptemberPayette LakeIdaho18.9°CSeptemberUtah LakeUtah23.5°CSeptemberGreat Salt LakeUtah24.5°CSeptemberLake SakakaweaNorth Dakota20.6°CSeptemberDevils LakeNorth Dakota21.5°CSeptemberLake OaheSouth Dakota21.5°CSeptemberPactola LakeSouth Dakota19.7°CSeptemberLake MinnetonkaMinnesota22.5°CSeptemberLake VermilionMinnesota20.6°CSeptemberMille Lacs LakeMinnesota21.5°CSeptemberLeech LakeMinnesota21.5°CSeptemberLake WinnibigoshishMinnesota21.5°CSeptemberGull LakeMinnesota22.5°CSeptemberLake PepinMinnesota / Wisconsin23.4°CSeptemberLake WinnebagoWisconsin22.5°CSeptemberLake MendotaWisconsin23.5°CSeptemberGreen LakeWisconsin21.6°CSeptemberLake WisconsinWisconsin23.5°CSeptemberCastle Rock LakeWisconsin23.5°CSeptemberLake CharlevoixMichigan20.6°CSeptemberTorch LakeMichigan19.7°CSeptemberHiggins LakeMichigan21.5°CSeptemberHoughton LakeMichigan23.4°CSeptemberLake St. ClairMichigan22.5°CSeptemberGrand Traverse BayMichigan19.7°CSeptemberLake CumberlandKentucky26.7°CSeptemberKentucky LakeKentucky / Tennessee27.6°CSeptemberLake BarkleyKentucky27.6°CSeptemberDale Hollow LakeTennessee26.7°CSeptemberNorris LakeTennessee26.7°CSeptemberDouglas LakeTennessee27.6°CSeptemberWatts Bar LakeTennessee27.7°CSeptemberPercy Priest LakeTennessee27.7°CSeptemberTims Ford LakeTennessee27.7°CSeptemberLake GuntersvilleAlabama28.7°CSeptemberLake MartinAlabama28.7°CSeptemberSmith LakeAlabama27.7°CSeptemberWheeler LakeAlabama28.7°CSeptemberWeiss LakeAlabama28.7°CSeptemberLake Sidney LanierGeorgia27.7°CSeptemberLake AllatoonaGeorgia27.7°CSeptemberLake OconeeGeorgia28.7°CSeptemberLake HartwellGeorgia / South Carolina27.7°CSeptemberLake SinclairGeorgia28.7°CSeptemberLake Blue RidgeGeorgia25.7°CSeptemberLake MurraySouth Carolina28.7°CSeptemberLake MarionSouth Carolina28.7°CSeptemberLake MoultrieSouth Carolina28.7°CSeptemberLake KeoweeSouth Carolina27.7°CSeptemberLake JocasseeSouth Carolina24.9°CSeptemberLake WylieNorth Carolina27.7°CSeptemberLake JamesNorth Carolina26.7°CSeptemberFontana LakeNorth Carolina24.8°CSeptemberJordan LakeNorth Carolina28.7°CSeptemberFalls LakeNorth Carolina28.7°CSeptemberLake GastonNorth Carolina / Virginia27.7°CSeptemberSmith Mountain LakeVirginia26.7°CSeptemberLake AnnaVirginia27.7°CSeptemberClaytor LakeVirginia25.7°CSeptemberDeep Creek LakeMaryland23.6°CSeptemberRaystown LakePennsylvania24.5°CSeptemberLake WallenpaupackPennsylvania24.5°CSeptemberConneaut LakePennsylvania23.5°CSeptemberLake NockamixonPennsylvania24.5°CSeptemberSeneca LakeNew York22.7°CSeptemberCayuga LakeNew York22.6°CSeptemberCanandaigua LakeNew York22.6°CSeptemberKeuka LakeNew York22.6°CSeptemberSkaneateles LakeNew York21.7°CSeptemberOneida LakeNew York23.4°CSeptemberSaranac LakeNew York20.6°CSeptemberLake PlacidNew York19.7°CSeptemberChautauqua LakeNew York23.4°CSeptemberGreenwood LakeNew Jersey / New York23.5°CSeptemberLake HopatcongNew Jersey24.4°CSeptemberCandlewood LakeConnecticut24.5°CSeptemberLake WaramaugConnecticut23.5°CSeptemberLake WinnisquamNew Hampshire22.5°CSeptemberSquam LakeNew Hampshire22.5°CSeptemberNewfound LakeNew Hampshire21.6°CSeptemberLake SunapeeNew Hampshire21.6°CSeptemberSebago LakeMaine21.6°CSeptemberMoosehead LakeMaine19.7°CSeptemberRangeley LakeMaine19.7°CSeptemberLong LakeMaine21.6°CSeptemberLake BomoseenVermont22.5°CSeptemberLake MemphremagogVermont20.6°CSeptemberLake WilloughbyVermont19.7°CSeptemberTable Rock LakeMissouri26.6°CSeptemberTruman LakeMissouri26.5°CSeptemberBull Shoals LakeArkansas / Missouri26.7°CSeptemberBeaver LakeArkansas26.7°CSeptemberLake OuachitaArkansas27.7°CSeptemberGreers Ferry LakeArkansas27.7°CSeptemberLake HamiltonArkansas28.6°CSeptemberGrand Lake o' the CherokeesOklahoma27.6°CSeptemberLake TenkillerOklahoma27.6°CSeptemberLake TexomaOklahoma / Texas28.6°CSeptemberLake EufaulaOklahoma28.5°CSeptemberCanyon LakeTexas27.9°CSeptemberLake LBJTexas28.9°CSeptemberLake BuchananTexas28.9°CSeptemberLake ConroeTexas29.8°CSeptemberLake LivingstonTexas29.8°CSeptemberLake AmistadTexas28.9°CSeptemberPossum Kingdom LakeTexas28.7°CSeptemberLake Ray HubbardTexas29.7°CSeptemberLake GrapevineTexas29.7°CSeptemberElephant Butte LakeNew Mexico25.8°CSeptemberNavajo LakeNew Mexico22.7°CSeptemberLake PleasantArizona27.9°CSeptemberSaguaro LakeArizona27.9°CSeptemberCanyon Lake (Arizona)Arizona26.9°CSeptemberRoosevelt LakeArizona27.9°CSeptemberLake MohaveArizona / Nevada26°CSeptemberPyramid LakeNevada21.8°CSeptemberLake BerryessaCalifornia23.9°CSeptemberClear LakeCalifornia24.9°CSeptemberShasta LakeCalifornia23.9°CSeptemberTrinity LakeCalifornia22.9°CSeptemberLake AlmanorCalifornia20.9°CSeptemberFolsom LakeCalifornia24.9°CSeptemberLake CasitasCalifornia25.1°CSeptemberBig Bear LakeCalifornia19.9°CSeptemberLake ArrowheadCalifornia20.9°CSeptemberDiamond Valley LakeCalifornia26°CSeptemberLake PerrisCalifornia26.9°CSeptemberGrand LakeColorado16.9°CSeptemberDillon ReservoirColorado14.1°CSeptemberHorsetooth ReservoirColorado19.8°CSeptemberChatfield ReservoirColorado20.7°CSeptemberBlue Mesa ReservoirColorado17.9°CSeptemberFlaming Gorge ReservoirUtah / Wyoming20.7°CSeptemberJackson LakeWyoming15.9°CSeptemberYellowstone LakeWyoming14.1°CSeptember
Canada
Okanagan LakeBritish Columbia21.7°CSeptemberLake SimcoeOntario21.5°CSeptemberLake MuskokaOntario20.6°CSeptemberLake WinnipegManitoba19.7°CSeptemberLake LouiseAlberta8.5°CSeptemberGeorgian BayOntario19.7°CSeptemberLake NipissingOntario20.6°CSeptemberLake of the WoodsOntario20.6°CSeptemberRideau LakesOntario22.5°CSeptemberLake ScugogOntario22.5°CSeptemberSturgeon LakeOntario21.5°CSeptemberBalsam LakeOntario21.5°CSeptemberLake JosephOntario20.6°CSeptemberLake RosseauOntario20.6°CSeptemberLake CouchichingOntario21.5°CSeptemberKawartha LakesOntario21.5°CSeptemberLake TemagamiOntario19.7°CSeptemberLake NipigonOntario15.9°CSeptemberLac Saint-JeanQuebec19.7°CSeptemberLac MemphremagogQuebec20.6°CSeptemberLac MassawippiQuebec20.6°CSeptemberLac TremblantQuebec19.7°CSeptemberLac des SablesQuebec20.6°CSeptemberLac SimonQuebec20.6°CSeptemberLake SkahaBritish Columbia22.7°CSeptemberShuswap LakeBritish Columbia21.7°CSeptemberKootenay LakeBritish Columbia19.8°CSeptemberCultus LakeBritish Columbia21.7°CSeptemberHarrison LakeBritish Columbia19.9°CSeptemberKalamalka LakeBritish Columbia21.7°CSeptemberChristina LakeBritish Columbia22.7°CSeptemberSproat LakeBritish Columbia20.9°CSeptemberLake CowichanBritish Columbia20.9°CSeptemberSylvan LakeAlberta18.7°CSeptemberLake MinnewankaAlberta10.3°CSeptemberMoraine LakeAlberta7.5°CSeptemberPigeon LakeAlberta19.7°CSeptemberLac La BicheAlberta18.7°CSeptemberLake WabamunAlberta19.7°CSeptemberWaskesiu LakeSaskatchewan18.7°CSeptemberLast Mountain LakeSaskatchewan19.7°CSeptemberLake DiefenbakerSaskatchewan19.7°CSeptemberCandle LakeSaskatchewan18.7°CSeptemberLake ManitobaManitoba19.7°CSeptemberClear Lake (Manitoba)Manitoba19.7°CSeptemberBras d'Or LakeNova Scotia19.7°CSeptemberLake BanookNova Scotia20.7°CSeptemberGrand Lake (New Brunswick)New Brunswick21.5°CSeptemberLake UtopiaNew Brunswick20.6°CSeptemberGander LakeNewfoundland and Labrador15.9°CSeptember
Germany
Lake ConstanceBaden-Württemberg21.8°CSeptemberChiemseeBavaria21.7°CSeptemberStarnberger SeeBavaria20.8°CSeptemberTegernseeBavaria19.8°CSeptemberWannseeBerlin21.6°CSeptemberMüggelseeBerlin22.5°CSeptemberLake ChiemseeBavaria21.7°CSeptemberLake StarnbergBavaria21.7°CSeptemberLake AmmerseeBavaria21.7°CSeptemberLake TegernseeBavaria20.8°CSeptemberLake WalchenseeBavaria18.9°CSeptemberLake KochelseeBavaria20.8°CSeptemberLake EibseeBavaria17.9°CSeptemberLake KonigsseeBavaria18°CSeptemberLake SchlierseeBavaria20.8°CSeptemberLake SteinhudeLower Saxony22.6°CSeptemberLake MuritzMecklenburg21.6°CSeptemberLake SchwerinMecklenburg21.6°CSeptemberLake PlauMecklenburg21.6°CSeptemberLake ScharmutzelseeBrandenburg22.5°CSeptemberLake WannseeBerlin22.6°CSeptemberLake MuggelseeBerlin22.6°CSeptemberLake TegelBerlin22.6°CSeptemberLake SenftenbergBrandenburg22.5°CSeptemberLake CospudenSaxony22.5°CSeptemberLake GeiseltalSaxony-Anhalt22.5°CSeptemberLake EderseeHesse21.7°CSeptemberLake TitiseeBaden-Wurttemberg19.8°CSeptemberLake SchluchseeBaden-Wurttemberg19.8°CSeptemberLake BostalseeSaarland21.7°CSeptemberLake RurseeNorth Rhine-Westphalia20.7°CSeptemberLake BaldeneyNorth Rhine-Westphalia21.7°CSeptemberLake DiemelseeHesse20.7°CSeptemberLake SylvensteinBavaria17.9°CSeptember
France
Lake AnnecyHaute-Savoie21.9°CSeptemberLac du BourgetSavoie22.9°CSeptemberLac de Sainte-CroixProvence24.8°CSeptemberLac Léman (Évian)Haute-Savoie20.9°CSeptemberLac du BourgetAuvergne-Rhone-Alpes22.8°CSeptemberLac d'AiguebeletteSavoie23.7°CSeptemberLac de Serre-PonconHautes-Alpes21.9°CSeptemberLac de CastillonProvence22.9°CSeptemberLac d'EsparronProvence23.9°CSeptemberLac de VassiviereNouvelle-Aquitaine20.9°CSeptemberLac d'HourtinGironde22.9°CSeptemberLac de LacanauGironde22.9°CSeptemberLac de BiscarrosseLandes23.9°CSeptemberLac de SanguinetLandes23.9°CSeptemberLac de SoustonsLandes23.9°CSeptemberLac de PareloupOccitanie21.9°CSeptemberLac de SalagouOccitanie25.8°CSeptemberLac du Der-ChantecoqGrand Est22.7°CSeptemberLac de MadineGrand Est21.7°CSeptemberLac de GerardmerVosges20.8°CSeptemberLac de Pierre-PerceeGrand Est20.8°CSeptemberLac de ChalainJura22.7°CSeptemberLac de VouglansJura22.7°CSeptemberLac de PaladruIsere23.7°CSeptemberLac de NaussacOccitanie20.9°CSeptemberLac de GuerledanBrittany21.9°CSeptember
United Kingdom
WindermereLake District18.1°CSeptemberConiston WaterLake District17.1°CSeptemberUllswaterLake District16.2°CSeptemberDerwentwaterLake District17.1°CSeptemberLoch LomondScotland16.2°CSeptemberLoch NessScotland12.5°CSeptemberWindermereCumbria18.1°CSeptemberBassenthwaite LakeCumbria17.1°CSeptemberButtermereCumbria16.1°CSeptemberWastwaterCumbria15.2°CSeptemberCrummock WaterCumbria16.1°CSeptemberGrasmereCumbria18.1°CSeptemberLoch AweScotland16.2°CSeptemberLoch TayScotland16.1°CSeptemberLoch MorlichScotland15.1°CSeptemberLoch EarnScotland16.1°CSeptemberLoch KatrineScotland15.2°CSeptemberLoch InshScotland16.1°CSeptemberBala LakeWales18.1°CSeptemberLlyn PadarnWales17.1°CSeptemberLlyn BrenigWales16.1°CSeptemberRutland WaterEngland19.9°CSeptemberLake VyrnwyWales17.1°CSeptemberLoch MorarScotland15.3°CSeptemberLough NeaghNorthern Ireland18.1°CSeptemberLough ErneNorthern Ireland18.1°CSeptember
Italy
Lake GardaLombardy / Veneto23.9°CSeptemberLake ComoLombardy22.9°CSeptemberLake MaggiorePiedmont / Ticino22.9°CSeptemberLake IseoLombardy22.9°CSeptemberLake BraccianoLazio24.9°CSeptemberLake TrasimenoUmbria25.7°CSeptemberLake BolsenaLazio24.9°CSeptemberLake OrtaPiedmont22.9°CSeptemberLake VareseLombardy23.7°CSeptemberLake IdroLombardy21.9°CSeptemberLake MolvenoTrentino19°CSeptemberLake CaldonazzoTrentino22.8°CSeptemberLake LevicoTrentino22.8°CSeptemberLake LedroTrentino21.9°CSeptemberLake BraiesSouth Tyrol13.3°CSeptemberLake ResiaSouth Tyrol14.2°CSeptemberLake CaldaroSouth Tyrol24.7°CSeptemberLake Santa CroceVeneto21.8°CSeptemberLake VicoLazio23.9°CSeptemberLake AlbanoLazio24°CSeptemberLake MassaciuccoliTuscany24.9°CSeptember
Switzerland
Lake GenevaVaud / Geneva20.9°CSeptemberLake ZurichZurich21.8°CSeptemberLake LucerneCentral Switzerland20.9°CSeptemberLake LuganoTicino23.9°CSeptemberLake ThunBernese Oberland19.9°CSeptemberLake BrienzBern16.2°CSeptemberLake NeuchatelNeuchatel20.8°CSeptemberLake BielBern20.8°CSeptemberLake ZugZug20.9°CSeptemberLake WalenSt. Gallen19°CSeptemberLake SilsGraubunden14.1°CSeptemberLake SilvaplanaGraubunden14.1°CSeptemberLake AegeriZug19.9°CSeptemberLake SarnenObwalden19°CSeptemberLake GreifenseeZurich20.8°CSeptemberLake PfaffikonZurich20.8°CSeptemberLake HallwilAargau21.7°CSeptemberLake MurtenFribourg21.7°CSeptember
Austria
WolfgangseeSalzkammergut21.7°CSeptemberWörtherseeCarinthia24.5°CSeptemberAtterseeUpper Austria20.8°CSeptemberLake NeusiedlBurgenland25.3°CSeptemberLake WolfgangSalzburg20.9°CSeptemberLake AtterseeUpper Austria20.9°CSeptemberLake MondseeUpper Austria21.8°CSeptemberLake TraunseeUpper Austria19.9°CSeptemberLake HallstattUpper Austria19°CSeptemberLake MillstattCarinthia22.7°CSeptemberLake OssiachCarinthia23.7°CSeptemberLake WeissenseeCarinthia21.7°CSeptemberLake FaakCarinthia24.7°CSeptemberLake Klopeiner SeeCarinthia26.5°CSeptemberLake AchenseeTyrol18.9°CSeptemberLake ZellSalzburg20.8°CSeptemberLake FuschlSalzburg20.9°CSeptember
Spain
Lake SanabriaCastilla y León20.9°CSeptemberEmbalse de San JuanMadrid23.9°CSeptemberLago de SanabriaCastile and Leon20.9°CSeptemberEmbalse de AlarconCastile-La Mancha24.8°CSeptemberEmbalse de EntrepenasGuadalajara23.9°CSeptemberEmbalse de El AtazarMadrid23.8°CSeptemberEmbalse de IznajarAndalusia26.8°CSeptemberEmbalse de NegratinAndalusia26.8°CSeptemberLago de BanyolesCatalonia24.9°CSeptemberEmbalse de SauCatalonia24.9°CSeptemberEmbalse de RianoCastile and Leon19°CSeptemberEmbalse de ProserpinaExtremadura26.8°CSeptemberEmbalse de OrellanaExtremadura26.8°CSeptemberEmbalse de As PontesGalicia23°CSeptember
Poland
Lake ŚniardwyMasuria21.5°CSeptemberLake WigryPodlaskie20.6°CSeptemberLake SniardwyMasuria20.7°CSeptemberLake MamryMasuria20.7°CSeptemberLake NiegocinMasuria20.7°CSeptemberLake WigryPodlaskie19.7°CSeptemberLake SolinaSubcarpathia21.7°CSeptemberLake ZywiecSilesia21.7°CSeptemberLake GopoKuyavia21.6°CSeptemberLake CharzykowskiePomerania20.7°CSeptemberLake JeziorakWarmia20.7°CSeptember