Seasonal ranking
Coldest sea temperature in South Korea in October
Where the sea is coolest across South Korea during October, ranked by long-term monthly average water temperature. Haeundae Beach (Busan, South Korea) is the coolest at around 19°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Haeundae BeachBusan · South Korea · Sea of JapanMild — fine for a swim, cool at first19°COctober average
- 2Gyeongpo BeachGangwon · South Korea · Sea of JapanMild — fine for a swim, cool at first19°COctober average
- 3Naksan BeachGangwon · South Korea · Sea of JapanMild — fine for a swim, cool at first19°COctober average
- 4Mangsang BeachGangwon · South Korea · Sea of JapanMild — fine for a swim, cool at first19°COctober average
- 5Sokcho BeachGangwon · South Korea · Sea of JapanMild — fine for a swim, cool at first19°COctober average
- 6Eurwangni BeachIncheon · South Korea · Yellow SeaMild — fine for a swim, cool at first19°COctober average
- 7Hyeopjae BeachJeju · South Korea · East China SeaWarm — comfortable swimming24°COctober average
- 8Jungmun BeachJeju · South Korea · East China SeaWarm — comfortable swimming24°COctober average
Coldest sea in October elsewhere
EuropeNorth AmericaSouth AmericaAsiaAfricaOceaniaUnited StatesUnited KingdomAustraliaItalySpainFranceGreeceMexicoPortugalNew ZealandCroatiaCanadaIrelandThailandIndonesiaPhilippinesBrazilSwedenPolandDenmarkNorwayTurkeyNetherlandsGermanyBulgariaJapanCyprusEgyptIndiaSouth AfricaDominican RepublicRomaniaCosta RicaMaltaPuerto RicoBahamasBelgiumBarbadosVietnamJamaicaSri LankaUnited Arab EmiratesOmanUS Virgin IslandsAntigua and BarbudaPanamaFinlandMalaysiaCuracaoArgentinaChileColombiaIsraelTanzaniaMoroccoTunisiaTurks and CaicosFijiArubaAlbaniaUruguayPeruMaldivesMauritiusBelizeNicaraguaSaint LuciaCubaMozambiqueFrench PolynesiaBonaireHondurasFrench RivieraAlgarveAmalfi CoastCosta BravaGreek IslandsDalmatian CoastFlorida KeysGreat Barrier Reef CoastCaliforniaFloridaHawaiiNew JerseyNorth CarolinaMassachusettsSouth CarolinaTexasNew YorkPuerto RicoMaineOregonMichiganGeorgiaWashington
South Korea in October — frequently asked questions
- Where is the sea coldest in South Korea in October?
- Haeundae Beach in South Korea has the coldest sea in South Korea in October, averaging about 19.0 °C. Gyeongpo Beach (19.0 °C) and Naksan Beach are the next coolest.
- How many beaches in South Korea are warm enough to swim in October?
- 2 of the top 8 ranked beaches in South Korea average 22 °C or more in October, which most swimmers find comfortable without a wetsuit.
- How are these October sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical October rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
Explore every sea temperature page
Jump straight to a country, coastal region, city, seasonal ranking or comparison.
Sea temperature by country
Coastal region hubs
Water temperature today by city
Warmest sea in August
Warmest sea month by month (Europe)
Coldest sea this month
Swimming guides
The best time to swim in the MediterraneanWhat sea temperature is safe to swim in?Swimming with kids: the best European beachesHow sea-surface temperature data actually worksWhat sea temperature is good for snorkelling?The best time to swim in SpainThe best time to swim in GreeceThe best time to swim in CroatiaThe best time to swim in FloridaThe best time to swim in CaliforniaThe best time to swim in AustraliaA beginner's guide to cold-water swimmingWarmest European beaches in OctoberFamily beach safety tips for every swimmerWetsuit guide: what to wear by water temperatureThe best time to swim in the CaribbeanThe best time to swim in MexicoThe best time to swim in ThailandThe best time to swim in PortugalThe best time to swim in TurkeyThe best time to swim in EgyptThe best time to swim in FranceThe best time to swim in ItalyBest beaches for snorkelling around the worldBest beaches for surfing by water temperatureHow to survive a rip currentJellyfish and marine life safety for swimmersHow to read a water temperature forecastLake Michigan water temperature: what to expectBest lakes to swim in the United StatesGreat Lakes swimming guideThe best time to swim in HawaiiThe best time to swim in the MaldivesThe best time to swim in Bali
Popular beach comparisons
Cala Estreta vs Platja d'AroCala Estreta vs Cala Sa TunaCala Pola vs Platja de LloretPlatja de Sant Pol vs Platja GranCala Montjoi vs Platja de PalsCala Pola vs Platja de Sant PolCala Estreta vs Platja de PalsAiguablava vs Cala EstretaCambrils Playa vs Platja de la PinedaPlatja de la Pineda vs Platja LlargaPlatja del Miracle vs Salou LevantePlaya del Carabassí vs Playa del PostiguetPlaya de San Juan vs Playa del CarabassíPlaya de la Fossa vs Playa de LevantePlaya de la Fossa vs Playa de PonienteCala Finestrat vs Playa del AlbirCala el Portet vs Playa de la FossaCala del Moraig vs Playa del ArenalCompare any two beaches →
Freshwater swimming
Keep exploring
Live sea temperature mapEvery coast, updated hourlyWarmest beaches todayLive ranking right nowCompare two beachesSide-by-side swim conditionsLake water temperaturesFreshwater swimming spotsRivers & swimming holesWild swimming conditionsAll destinationsBrowse by country & region