SmogRank / Countries / Japan / December 2025
Most polluted cities in Japan, December 2025
525 cities in Japan ranked by their average PM2.5 over the 31 days. Worst: Hita at 14.8 µg/m³, #472 of 2,351 cities in the world. Cleanest: Namerikawa at 3.2. A city needs measurements on 70% of the days to be ranked.
- 1HitaOita 14.8
- 2JōsōIbaraki 14.7
- 3NodaChiba 14.6
- 4Shimo-tsumaIbaraki 14.5
- 5TsuchiuraIbaraki 14.4
- 6ChikuseiIbaraki 13.8
- 7NakaIbaraki 13.3
- 8MiyakonojōMiyazaki 13.2
- 9YotsukaidōChiba 13.0
- 10Uekimachi-mōnoKumamoto 12.9
- 11OyamaTochigi 12.8
- 11OnomichiHiroshima 12.8
- 13ŌmutaFukuoka 12.7
- 14Misato, SaitamaSaitama 12.6
- 15SōkaSaitama 12.3
- 15TorideIbaraki 12.3
- 15YachiyoChiba 12.3
- 15HigashigōSaga 12.3
- 15KamagayaChiba 12.3
- 20KashiwaChiba 12.2
- 20Kanzakimachi-kanzakiSaga 12.2
- 22KumamotoKumamoto 12.0
- 22ChikugoFukuoka 12.0
- 24YachimataChiba 11.8
- 24SakuraChiba 11.8
- 26Tanushimarumachi-toyokiFukuoka 11.7
- 26GyōdaSaitama 11.7
- 28SuzakaNagano 11.6
- 28KurashikiOkayama 11.6
- 28HanyūSaitama 11.6
- 31Shin’ichiHiroshima 11.5
- 31KasukabeSaitama 11.5
- 33KoshigayaSaitama 11.4
- 34TakamatsuKagawa 11.3
- 34OnodaYamaguchi 11.3
- 36ŌtaGunma 11.2
- 36HigashinozoeHyōgo 11.2
- 36KazoSaitama 11.2
- 36KamisuIbaraki 11.2
- 36InzaiChiba 11.2
- 36SaitamaSaitama 11.2
- 42KanoyaKagoshima 11.1
- 42KotōKumamoto 11.1
- 42TakuSaga 11.1
- 45AsakaSaitama 11.0
- 46KōnosuSaitama 10.9
- 46IgusaSaitama 10.9
- 46SōsaChiba 10.9
- 46OgōriFukuoka 10.9
- 46BizenOkayama 10.9
- 46AsakuchiOkayama 10.9
- 52TamanoOkayama 10.8
- 52ChibaChiba 10.8
- 52AjikiChiba 10.8
- 55SagaSaga 10.7
- 55ŌzuKumamoto 10.7
- 55KukichūōSaitama 10.7
- 55KofuYamanashi 10.7
- 55KawaguchiSaitama 10.7
- 55FukuyamaHiroshima 10.7
- 61TakeoSaga 10.6
- 61Kan’onjichōKagawa 10.6
- 61HigashiosakaOsaka 10.6
- 61IshiokaIbaraki 10.6
- 61HokotaIbaraki 10.6
- 61BandōIbaraki 10.6
- 67TokyoTokyo 10.5
- 67Maebaru-chūōFukuoka 10.5
- 67Imarichō-kōSaga 10.5
- 67AgeoSaitama 10.5
- 67MookaTochigi 10.5
- 72TosuSaga 10.4
- 72TatebayashiGunma 10.4
- 72KikuchiKumamoto 10.4
- 72SaijōEhime 10.4
- 72IchiharaChiba 10.4
- 72NarashinoChiba 10.4
- 78NishioAichi 10.3
- 78NakatsuOita 10.3
- 78KisarazuChiba 10.3
- 78KashimaSaga 10.3
- 78KariyaAichi 10.3
- 78KogaFukuoka 10.3
- 84FukuokaFukuoka 10.2
- 84HigashihiroshimaHiroshima 10.2
- 86TagawaFukuoka 10.1
- 86NiizaSaitama 10.1
- 86KaniGifu 10.1
- 89TsuyamaOkayama 10.0
- 89TokorozawaSaitama 10.0
- 89NaritaChiba 10.0
- 89MobaraChiba 10.0
- 89ShikokuchūōEhime 10.0
- 94YanagawaFukuoka 9.9
- 94TakanabeMiyazaki 9.9
- 94SōjaOkayama 9.9
- 94SanoTochigi 9.9
- 94SakadoSaitama 9.9
- 94KimitsuChiba 9.9
- 94InashikiIbaraki 9.9
- 94Higashi-MatsuyamaSaitama 9.9
- 102TamanaKumamoto 9.8
- 102ShidoKagawa 9.8
- 102MatsudoChiba 9.8
- 102BeppuOita 9.8
- 102UkihaFukuoka 9.8
- 107UtoKumamoto 9.7
- 107UrayasuChiba 9.7
- 107KogaIbaraki 9.7
- 107Kakogawachō-honmachiHyōgo 9.7
- 107KasugaFukuoka 9.7
- 112SuzukaMie 9.6
- 112SendaiKagoshima 9.6
- 112SaseboNagasaki 9.6
- 112NiihamaEhime 9.6
- 112MinawaKanagawa 9.6
- 117TaharaAichi 9.5
- 117SekimachiGifu 9.5
- 117NōgataFukuoka 9.5
- 117KagoshimaKagoshima 9.5
- 117YokoshibaChiba 9.5
- 117AraoKumamoto 9.5
- 123UtsunomiyaTochigi 9.4
- 123Ōyanomachi-noboritateKumamoto 9.4
- 123OwariasahiAichi 9.4
- 123Minami-AlpsYamanashi 9.4
- 123SodegauraChiba 9.4
- 128TenriNara 9.3
- 128MarugameKagawa 9.3
- 128KumagayaSaitama 9.3
- 128KasaokaOkayama 9.3
- 128Kashima-shiIbaraki 9.3
- 128SawaraChiba 9.3
- 134Ureshinomachi-shimojukuSaga 9.2
- 134KaratsuSaga 9.2
- 134IizukaFukuoka 9.2
- 134HōryūjiNara 9.2
- 134TōganeChiba 9.2
- 134KitamiHokkaido 9.2
- 140TokonameAichi 9.1
- 140Kaseda-shirakameKagoshima 9.1
- 140Hondomachi-hondoKumamoto 9.1
- 140HyūgaMiyazaki 9.1
- 144AkashiHyōgo 9.0
- 144YawataKyoto 9.0
- 144OsakaOsaka 9.0
- 144OnoHyōgo 9.0
- 144KitakyushuFukuoka 9.0
- 144HandaAichi 9.0
- 144ChigasakiKanagawa 9.0
- 144TsushimaNagasaki 9.0
- 144HigashikurumeTokyo 9.0
- 153HonmachiKumamoto 8.9
- 153KaminokawaTochigi 8.9
- 153HikariYamaguchi 8.9
- 153ImabariEhime 8.9
- 157AtsugiKanagawa 8.8
- 157ZentsujichóKagawa 8.8
- 157TakahashiOkayama 8.8
- 157ŌgakiGifu 8.8
- 157KakamigaharaGifu 8.8
- 157AmagasakiHyōgo 8.8
- 157KirishimaKagoshima 8.8
- 164YokotaTokyo 8.7
- 164ShimonosekiYamaguchi 8.7
- 164SandachōHyōgo 8.7
- 164OkayamaOkayama 8.7
- 164MiyazakiMiyazaki 8.7
- 164KawagoeSaitama 8.7
- 164AzaminoKanagawa 8.7
- 164ItoshimaFukuoka 8.7
- 164TōkaiAichi 8.7
- 173YokkaichiMie 8.6
- 173YoukaichiShiga 8.6
- 173TogitsuNagasaki 8.6
- 173OkazakiAichi 8.6
- 173NagasakiNagasaki 8.6
- 173KushikinoKagoshima 8.6
- 173KurihamaKanagawa 8.6
- 173KogaFukuoka 8.6
- 173HiroshimaHiroshima 8.6
- 173FujisawaKanagawa 8.6
- 173OmigawaChiba 8.6
- 173YamatoKanagawa 8.6
- 185YukuhashiFukuoka 8.5
- 185YokohamaKanagawa 8.5
- 185NichinanMiyazaki 8.5
- 185MinamirinkanKanagawa 8.5
- 185HitoyoshiKumamoto 8.5
- 185FuchūTokyo 8.5
- 191IzumiKagoshima 8.4
- 191IsahayaNagasaki 8.4
- 191ObihiroHokkaido 8.4
- 191MunakataFukuoka 8.4
- 191MinamikyushuKagoshima 8.4
- 196YaoOsaka 8.3
- 196TomiokaGunma 8.3
- 196KamakuraKanagawa 8.3
- 196IkedachōTokushima 8.3
- 196HannōSaitama 8.3
- 196KariyaHyōgo 8.3
- 196IyoEhime 8.3
- 196IrumaSaitama 8.3
- 196HashimaGifu 8.3
- 196YameFukuoka 8.3
- 206MinatoWakayama 8.2
- 206Sakai-nakajimaGunma 8.2
- 206SaikūMie 8.2
- 206MorohongōSaitama 8.2
- 206KureHiroshima 8.2
- 206KudamatsuYamaguchi 8.2
- 206ŌharaChiba 8.2
- 206IshinomakiMiyagi 8.2
- 206MineYamaguchi 8.2
- 215TokiGifu 8.1
- 215TakayamaGifu 8.1
- 215MenumaSaitama 8.1
- 215HashimotoWakayama 8.1
- 215MitoIbaraki 8.1
- 215Hitachi-NakaIbaraki 8.1
- 215SugaiKyoto 8.1
- 215NantanKyoto 8.1
- 223YaeHiroshima 8.0
- 223ŌtakeHiroshima 8.0
- 223ŌmuraNagasaki 8.0
- 223Narutochō-mitsuishiTokushima 8.0
- 223NagoyaAichi 8.0
- 223MifuneKumamoto 8.0
- 223KōtariKyoto 8.0
- 223KishiwadaOsaka 8.0
- 223KandaFukuoka 8.0
- 223NagatoYamaguchi 8.0
- 223SayamaSaitama 8.0
- 223KasamaIbaraki 8.0
- 223KodairaTokyo 8.0
- 236YokosukaKanagawa 7.9
- 236NabariMie 7.9
- 236KusatsuShiga 7.9
- 236KameyamaMie 7.9
- 236IshigakiOkinawa 7.9
- 236HiratsukaKanagawa 7.9
- 236AioiHyōgo 7.9
- 236MatsuyamaEhime 7.9
- 236EbinaKanagawa 7.9
- 245UbeYamaguchi 7.8
- 245SakaiOsaka 7.8
- 245KyotoKyoto 7.8
- 245IidaNagano 7.8
- 245HekinanAichi 7.8
- 245MiuraKanagawa 7.8
- 245MatsusakaMie 7.8
- 245MizuhoGifu 7.8
- 253HimejiHyōgo 7.7
- 253HadanoKanagawa 7.7
- 253ŌmihachimanShiga 7.7
- 253AsoKumamoto 7.7
- 253BuzenFukuoka 7.7
- 253HiragiKagawa 7.7
- 253MinamichitaAichi 7.7
- 260YanaiYamaguchi 7.6
- 260UjiKyoto 7.6
- 260MinamataKumamoto 7.6
- 260MiharaHiroshima 7.6
- 260Kodamachō-kodamaminamiSaitama 7.6
- 260Kashihara-shiNara 7.6
- 260IwakuniYamaguchi 7.6
- 260AnjōAichi 7.6
- 260AnanTokushima 7.6
- 260MatsuuraNagasaki 7.6
- 260WakasugiFukuoka 7.6
- 260TatsunoHyōgo 7.6
- 260IkiNagasaki 7.6
- 273Ueno-ebisumachiMie 7.5
- 273TsuMie 7.5
- 273TochigiTochigi 7.5
- 273ŌitaOita 7.5
- 273NishiwakiHyōgo 7.5
- 273NishinomiyaHyōgo 7.5
- 273KobayashiMiyazaki 7.5
- 273IwadeWakayama 7.5
- 273IkarugaHyōgo 7.5
- 273GionHiroshima 7.5
- 273ChiryūAichi 7.5
- 273HabikinoOsaka 7.5
- 273IgaMie 7.5
- 273JōyōKyoto 7.5
- 273KaminomaAichi 7.5
- 288YamaguchiYamaguchi 7.4
- 288UedaNagano 7.4
- 288TakeharaHiroshima 7.4
- 288NumazuShizuoka 7.4
- 288NakamaFukuoka 7.4
- 288MachidaTokyo 7.4
- 288IseMie 7.4
- 288HirakataOsaka 7.4
- 288HachiōjiTokyo 7.4
- 288ShintomiMiyazaki 7.4
- 288NoboritoKanagawa 7.4
- 299TsurusakiOita 7.3
- 299ŌmeTokyo 7.3
- 299KameokaKyoto 7.3
- 299GifuGifu 7.3
- 299Fukui-shiFukui 7.3
- 299MoriokaIwate 7.3
- 299MimaTokushima 7.3
- 299ShūnanYamaguchi 7.3
- 307TakinomiyaKagawa 7.2
- 307NobeokaMiyazaki 7.2
- 307NahaOkinawa 7.2
- 307NaganoNagano 7.2
- 307MieOita 7.2
- 307MatsueShimane 7.2
- 307Kamojimachō-jōgejimaTokushima 7.2
- 307IchinomiyaAichi 7.2
- 307HigashimurayamaTokyo 7.2
- 307AmamiKagoshima 7.2
- 307KizugawaKyoto 7.2
- 307GotōNagasaki 7.2
- 319YoriiSaitama 7.1
- 319SusakiKochi 7.1
- 319ShibukawaGunma 7.1
- 319ObitaNagasaki 7.1
- 319KobeHyōgo 7.1
- 319KiryūGunma 7.1
- 319FujinomiyaShizuoka 7.1
- 319FujiShizuoka 7.1
- 319AyabeKyoto 7.1
- 319KinokawaWakayama 7.1
- 319YawatahamaEhime 7.1
- 330NyūzenToyama 7.0
- 330InuyamaAichi 7.0
- 330HikoneShiga 7.0
- 330MiyakojimaOkinawa 7.0
- 330KosaiShizuoka 7.0
- 335NakamuraKochi 6.9
- 335TakashimaShiga 6.9
- 335AridaWakayama 6.9
- 335AmaAichi 6.9
- 335MinamibōsōChiba 6.9
- 340SaikiOita 6.8
- 340MatsumotoNagano 6.8
- 340KochiKochi 6.8
- 340KashiwaraNara 6.8
- 340KainanWakayama 6.8
- 340IseharaKanagawa 6.8
- 340HonjōSaitama 6.8
- 340HimimachiToyama 6.8
- 340HagiYamaguchi 6.8
- 340ChichibuSaitama 6.8
- 340ChitoseHokkaido 6.8
- 340ChikumaNagano 6.8
- 340MinokamoGifu 6.8
- 340KuwanaMie 6.8
- 354Tottori-shiTottori 6.7
- 354TokushimaTokushima 6.7
- 354TanabeWakayama 6.7
- 354TajimiGifu 6.7
- 354SetoAichi 6.7
- 354ŌtsukiYamanashi 6.7
- 354NagoOkinawa 6.7
- 354IzumoShimane 6.7
- 354HōfuYamaguchi 6.7
- 354UwajimaEhime 6.7
- 354SagaeYamagata 6.7
- 354NisshinAichi 6.7
- 354SaikaiNagasaki 6.7
- 367TondabayashichōOsaka 6.6
- 367TakarazukaHyōgo 6.6
- 367ShibataNiigata 6.6
- 367KurayoshiTottori 6.6
- 367KanumaTochigi 6.6
- 367GamagōriAichi 6.6
- 367FukuroiShizuoka 6.6
- 367AiharaKanagawa 6.6
- 367ShiroishiMiyagi 6.6
- 367NasukarasuyamaTochigi 6.6
- 377ToyookaHyōgo 6.5
- 377ToyohashiAichi 6.5
- 377OwaseMie 6.5
- 377Ōdachō-ōdaShimane 6.5
- 377MasudaShimane 6.5
- 377IkomaNara 6.5
- 377GotembaShizuoka 6.5
- 377FukuchiyamaKyoto 6.5
- 377HitachiomiyaIbaraki 6.5
- 377InabeMie 6.5
- 377SusonoShizuoka 6.5
- 377UnnanShimane 6.5
- 389TateyamaChiba 6.4
- 389SumotoHyōgo 6.4
- 389SakaiminatoTottori 6.4
- 389IzumisanoOsaka 6.4
- 389GobōWakayama 6.4
- 389YurihonjōAkita 6.4
- 389Kawachi-NaganoOsaka 6.4
- 389YoshinogawaTokushima 6.4
- 397YaitaTochigi 6.3
- 397ToyotaAichi 6.3
- 397SuwaNagano 6.3
- 397MiyoshiHiroshima 6.3
- 397IwakiFukushima 6.3
- 397KumanoMie 6.3
- 397OgaAkita 6.3
- 397SennanOsaka 6.3
- 405YonagoTottori 6.2
- 405IzumiOsaka 6.2
- 405HamadaShimane 6.2
- 405GōtsuchōShimane 6.2
- 405ImizuToyama 6.2
- 405AkishimaTokyo 6.2
- 411ToyonakaOsaka 6.1
- 411Nara-shiNara 6.1
- 411SayamaOsaka 6.1
- 414TakaokaToyama 6.0
- 414OgawamachiSaitama 6.0
- 414ObamaFukui 6.0
- 414KakegawaShizuoka 6.0
- 414AtamiShizuoka 6.0
- 414AkiKochi 6.0
- 414MiyakoIwate 6.0
- 414MatsushimaMiyagi 6.0
- 414KōriyamaFukushima 6.0
- 423ShinagawaEhime 5.9
- 423SakuNagano 5.9
- 423KitahamaShiga 5.9
- 423InoKochi 5.9
- 423Natori-shiMiyagi 5.9
- 423SōmaFukushima 5.9
- 423ŌsakiMiyagi 5.9
- 423KikugawaShizuoka 5.9
- 423JōetsuNiigata 5.9
- 432YasugichōShimane 5.8
- 432UozuToyama 5.8
- 432ŌtsuShiga 5.8
- 432MiyazuKyoto 5.8
- 432MikuniFukui 5.8
- 432AkitaAkita 5.8
- 432Aizu-WakamatsuFukushima 5.8
- 432IzunokuniShizuoka 5.8
- 440TsuruokaYamagata 5.7
- 440NumataGunma 5.7
- 440NagahamaShiga 5.7
- 440MaizuruKyoto 5.7
- 440MuroranHokkaido 5.7
- 440YonoOsaka 5.7
- 440TomeMiyagi 5.7
- 447InaNagano 5.6
- 447IbiGifu 5.6
- 447OkinawaOkinawa 5.6
- 447YoshiokaMiyagi 5.6
- 447Tagajō-shiMiyagi 5.6
- 447KatsuuraChiba 5.6
- 447IwanumaMiyagi 5.6
- 447ŌdateAkita 5.6
- 447MinamiashigaraKanagawa 5.6
- 447SadoNiigata 5.6
- 447NankokuKochi 5.6
- 447ShirakawaFukushima 5.6
- 459NiimiOkayama 5.5
- 459Kameda-honchōNiigata 5.5
- 459IwataShizuoka 5.5
- 459HakuiIshikawa 5.5
- 459IchinosekiIwate 5.5
- 459HanamakiIwate 5.5
- 465ToyamaToyama 5.4
- 465ShizuokaShizuoka 5.4
- 465NakanojōGunma 5.4
- 465NagaokaNiigata 5.4
- 465HamamatsuShizuoka 5.4
- 465YamagataYamagata 5.4
- 465MinamiuonumaNiigata 5.4
- 472ShimodaShizuoka 5.3
- 472SabaeFukui 5.3
- 472KesennumaMiyagi 5.3
- 472AsahikawaHokkaido 5.3
- 476TsurugaFukui 5.2
- 476NiigataNiigata 5.2
- 476KakudaMiyagi 5.2
- 476KōkaShiga 5.2
- 480HitachiIbaraki 5.1
- 480NoshiroAkita 5.1
- 480HakodateHokkaido 5.1
- 480OyabeToyama 5.1
- 480KagaIshikawa 5.1
- 485TobaMie 5.0
- 485MatsutōIshikawa 5.0
- 485FujiedaShizuoka 5.0
- 485SapporoHokkaido 5.0
- 485ŌshūIwate 5.0
- 485FujiyoshidaYamanashi 5.0
- 485KyōtangoKyoto 5.0
- 492TsubataIshikawa 4.9
- 492ShimadaShizuoka 4.9
- 492YokoteAkita 4.9
- 492HirosakiAomori 4.9
- 492HachinoheAomori 4.9
- 497ShingūWakayama 4.8
- 497ShironeNiigata 4.8
- 497OkayaNagano 4.8
- 497NanaoIshikawa 4.8
- 497KomatsuIshikawa 4.8
- 497KitaibarakiIbaraki 4.8
- 497KushiroHokkaido 4.8
- 504ShimaMie 4.7
- 504NonoichiIshikawa 4.7
- 504KanazawaIshikawa 4.7
- 504ImaichiTochigi 4.7
- 504SendaiMiyagi 4.7
- 509AomoriAomori 4.6
- 509TakizawaIwate 4.6
- 511OnoFukui 4.5
- 511Niitsu-honchōNiigata 4.5
- 511Minami-SōmaFukushima 4.5
- 514HamakitaShizuoka 4.4
- 514TomakomaiHokkaido 4.4
- 514KuriharaMiyagi 4.4
- 514KaizuGifu 4.4
- 518MakiNiigata 4.3
- 518AnamizuIshikawa 4.3
- 518TonamiToyama 4.3
- 521WakuyaMiyagi 4.2
- 521KujiIwate 4.2
- 523GeroGifu 4.0
- 524KamaishiIwate 3.7
- 525NamerikawaToyama 3.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, December 2025 · Japan now
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