Sauyin yanayi na Japan

Yawancin yankuna na Japan, kamar su Honshu, Shikoku, da Kyushu, suna cikin yankin da ke da yanayi mai zAf (Köppen climate classification Cfa) wanda ke da yanayi daban-daban guda huɗu. Koyaya, yanayin sa ya bambanta daga yanayin sanyi mai zafi na nahiyar (Köppen climate classification Dfb) a arewa kamar arewacin Hokkaido, zuwa yanayin zafi na gandun daji (Köpp climate classification Af) a kudu kamar Tsibirin Yaeyama da Minami-Tori-shima.

 Yankunan yanayi. 
Hanyoyin yanayin ƙasa daban-daban na Japan sun raba shi zuwa manyan yankuna shida na yanayi.

 Hokkaido na cikin Yanayin zafi na nahiyar, tare da dogon lokaci, hunturu mai sanyi sosai da dumi, lokacin sanyi. Ruwan sama yana da yawa; duk da haka, hunturu yana kawo babban dusar ƙanƙara na daruruwan inci a yankuna kamar Sapporo da Asahikawa.

 Ruwan sama. 

Japan gabaɗaya ƙasa ce mai ruwan sama mai tsananin zafi. Saboda yawan latitude, iskar yanayi da nau'ikan magudanan ruwa daban-daban, Japan tana da yanayi iri-iri, tare da kewayon tsibiran da ke zaune daga 24°N – 46°N, wanda yayi daidai da kewayon tsakanin Nova Scotia da Bahamas a gabar tekun gabas ta Arewacin Amurka.  Tokyo yana tsakanin 35°N – 36°N, wanda yayi daidai da na Tehran, Charlotte, ko Las Vegas..

Kamar yadda Dutsen Fuji da Alps na bakin teku na Japan ke samar da inuwa mai ruwan sama, Nagano da Yamanashi Prefectures suna karɓar mafi ƙarancin hazo a Honshu, kodayake har yanzu yana wucewa 900 millimeters (35 in) a kowace shekara. Ana samun irin wannan sakamako a Hokkaido, inda Obodo na Okhotsk ke karɓar kusan 750 millimeters (30 in) a kowace shekara. Duk sauran yankuna suna da bakin teku a kan Tekun Pacific, Tekun Japan, da Tekun Seto Inland, ko kuma suna da ruwan gishiri da aka haɗa da su. Gundumar biyu - Hokkaido da Okinawa - sun hada da tsibirai gaba ɗaya.

 Lokaci. 

 Lokacin bazara 
Yanayin yanayi daga Yuni zuwa Satumba yana nuna zafi, yanayin rigar da iska ta kawo daga Tekun Pacific da Kudu maso gabashin Asiya. Wadannan iskar iska suna cike da danshi kuma suna ajiye ruwan sama mai yawa lokacin da suka isa ƙasa. Akwai lokacin ruwan sama mai alama, wanda ya fara a farkon Yuni kuma ya ci gaba da kusan wata daya. Yana biye da zafi, yanayi mai mannewa. Guguwa biyar ko shida suna wucewa ko kusa da Japan a kowace shekara daga farkon watan Agusta zuwa farkon Oktoba, wani lokacin yana haifar da mummunar lalacewa. Matsakaicin ruwan sama na shekara-shekara tsakanin 1,000 da 2,500  in) ban da yankuna kamar Kii Peninsula da Yakushima Island wanda shine wuri mafi ruwan sama a Japan  tare da ruwan sama na yau da kullun yana daya daga cikin mafi girma a duniya a 4,000 zuwa 10,000 mm.  

Mafi girman hazo, kamar sauran Gabashin Asiya, yana faruwa  watanni na rani sai dai  tekun Japan inda iska mai karfi ta arewa ke samar da matsakaicin a ƙarshen kaka da farkon hunturu. Sai dai ga 'yan kwari masu kariya a cikin watan Disamba da Janairu, ruwan sama a Japan yana sama da 25 millimeters (1 in) na ruwan sama daidai a duk watanni na shekara, kuma a cikin yankunan bakin teku mafi zafi yana sama da 100 millimeters (4 in) a kowane wata a duk shekara.

Tsakiyar Yuni zuwa tsakiyar Yuli yawanci Lokacin ruwan sama ne a Honshu, Shikoku, da Kyushu, ban da Hokkaidō tun lokacin da ruwan sama na yanayi ko tsuyu zensen (梅雨前線) ya ɓace a arewacin Honshu kafin ya kai Hokkaido. A Okinawa, lokacin ruwan sama yana farawa a farkon watan Mayu kuma yana ci gaba har zuwa tsakiyar Yuni. Ba kamar lokacin ruwan sama a ƙasar Japan ba, ruwan sama ba kowace rana ko dukan rana ba a lokacin ruwan sama na Okinawa. Tsakanin Yuli da Oktoba, guguwa, da suka girma daga matsanancin yanayi da aka haifar kusa da ma'auni, na iya kai farmaki ga Japan tare da ruwan sama mai fushi.

 Lokacin hunturu 
A cikin hunturu, Siberian High yana tasowa a kan yankin Eurasian kuma Aleutian Low yana tasowa akan arewacin Tekun Pacific. Sakamakon shi ne kwararar iska mai sanyi zuwa kudu maso gabas a fadin Japan wanda ke kawo yanayin sanyi da dusar ƙanƙara mai nauyi zuwa tsaunukan tsakiya da ke fuskantar Tekun Japan, amma sararin sama mai tsabta ga wuraren da ke gaba a kan Pacific.

Ana samun yanayin zafi na hunturu mafi zafi a cikin tsibirin Nanpō da Bonin, waɗanda ke jin daɗin yanayin zafi saboda haɗuwa da latitude, nesa daga Nahiyar Asiya, da tasirin dumama na iskõki daga Kuroshio, da kuma Tsibirin Volcano (a latitude na kudancin tsibirin Ryukyu, 24 ° N). Ana samun yanayin zafi mafi sanyi a arewa maso gabashin Hokkaidō a cikin Kushiro da Nemuro Subprefectures.

 Hasken rana. 
Sunshine, daidai da ruwan sama mai yawa na Japan, yawanci yana da yawa, kodayake babu wani ɓangare na Japan da ke karɓar hazo mai duhu wanda ke ke kewaye da Sichuan Basin ko Taipei. Adadin ya kasance daga kimanin sa'o'i shida a kowace rana a bakin tekun Inland da ɓangarorin da aka kare na Pacific Coast da Kantō Plain zuwa sa'o-i huɗu a kowace rana akan Tekun Japan na bakin tekun Hokkaidō. A watan Disamba akwai hasken rana mai zurfi tsakanin Tekun Japan da gabar tekun Pacific, kamar yadda tsohon gefen zai iya karɓar ƙasa da awanni 30 kuma gefen Pacific har zuwa awanni 180. A lokacin rani, duk da haka, sa'o'in hasken rana sun fi ƙasa a sassa da aka fallasa na gabar tekun Pacific inda hazo daga halin yanzu Oyashio ke haifar da murfin girgije mai kama da wanda aka samu a tsibirin Kuril da Sakhalin.

 Rubuce-rubucen zafin jiki mai tsanani. 
Mafi girman zafin jiki da aka rubuta a Japan ya kasance 41.1 ° C (106.0 ° F) a ranar 23 ga Yuli 2018 da 17 ga Agusta 2020, an dauki rikodin da ba a tabbatar da shi ba na 42.7 ° C a Adachi, Tokyo a ranar 20 ga Yuli 2004. Babban danshi da tasirin teku suna sa yanayin zafi a cikin 40s ba shi da yawa, tare da lokacin rani wanda ya mamaye tsarin ruwan sama mai ɗorewa ta hanyar mafi yawan Japan. Mafi ƙasƙanci shine -41.0 °C (-41.8 °F) a Asahikawa a ranar 25 ga Janairu 1902. Koyaya an ɗauki -41.5 °C ba bisa ka'ida ba a Bifuka a ranar 27 ga Janairu 1931. Dutsen Fuji ya karya ƙarancin rikodin Jafananci na kowane wata ban da Janairu, Fabrairu, Maris, da Disamba. Rubuce-rubuce na kowane wata an ɗauka kwanan nan kamar 1984.      

Minami-Tori-shima tana da Yanayin savanna na wurare masu zafi (Köppen climate classification Aw) da kuma matsakaicin matsakaicin zafin jiki a Japan na digiri 25 na Celsius.

 Bayanan da suka fi dacewa. 

+Yanayin zafin jiki na kowane wataRubuce-rubucen yanayin zafiRubuce-rubucen yanayin zafiWata°C°FWurin da yakeRanar°C°FWurin da yakeRanarJanairu29.785.5Minami-Tori-shima7 Janairu 19549 Janairu 2021−41.0−41.8Asahikawa, Hokkaido25 ga Janairu 1902Fabrairu29.184.4Okinawa" id="mwAQM" rel="mw:WikiLink" title="Ishigaki, Okinawa">Ishigaki, Okinawa16 Fabrairu 1898−38.3−36.9Asahikawa, Hokkaido11 Fabrairu 1902Maris30.486.7Naze, Kagoshima26 Maris 1999−35.2−31.4Obihiro, Hokkaido3 Maris 1895Afrilu33.792.7Yonago28 ga Afrilu 2005−27.8−18.0Dutsen Fuji3 ga Afrilu 1965Mayu39.5103.1Saroma26 ga Mayu 2019−18.9−2.0Dutsen Fuji3 ga Mayu 1934Yuni40.2104.4Isesaki25 Yuni 2022−13.18.4Dutsen Fuji2 Yuni 1981Yuli41.1106.0Kumagaya, Saitama23 ga Yuli 2018−6.919.6Dutsen Fuji4 ga Yuli 1966Agusta41.1106.0Hamamatsu da Shizuoka17 ga watan Agusta 2020−4.324.3Dutsen Fuji25 ga watan Agusta 1972Satumba40.4104.7Sanjō, Niigata3 Satumba 2020−10.812.6Dutsen Fuji23 ga Satumba 1976Oktoba36.096.8Sanjō, Niigata6 ga Oktoba 2018−19.5−3.2Dutsen Fuji30 ga Oktoba 1984Nuwamba34.294.4Minami-Tori-shima4 ga Nuwamba 1953−28.1−18.6Dutsen Fuji30 ga Nuwamba 1970Disamba31.688.9Minami-Tori-shima5 ga Disamba 1952−34.2−29.6Obihiro, Hokkaido30 Disamba 1907
+Yanayin zafin jiki na yanayiRubuce-rubucen yanayin zafiRubuce-rubucen yanayin zafiLokacin°C°FWurin da yakeRanar°C°FWurin da yakeRanarLokacin hunturu31.688.9Minami-Tori-shima5 ga Disamba 1952−41.0−41.8Asahikawa, Hokkaido25 ga Janairu 1902Lokacin bazara39.5103.1Saroma, Hokkaido26 ga Mayu 2019−35.2−31.4Obihiro, Hokkaido3 Maris 1895Lokacin bazara41.1106.0Kumagaya, Saitama23 ga Yuli 2018−13.18.4Dutsen Fuji2 Yuni 1981Lokacin kaka40.4104.7Sanjō, Niigata3 Satumba 2020−28.1−18.6Dutsen Fuji30 ga Nuwamba 1970
Manazarta.
Rukuni:Yanayi
Rukuni:Shafuka masu fassarorin da ba'a duba ba