Sauyin Yanayin Kolkata

Kolkata tana da Yanayin savanna na wurare da masu zafi (Köppen climate classification Aw). Matsakaicin zafin jiki na shekara-shekara shine  ° C (80.2 ° F); matsakaicin yanayin zafi na kowane wata yana daga 1 zuwa 30 ° C (59 zuwa 86 ° F).  Lokacin bazara yana da zafi da zafi tare da yanayin zafi a cikin ƙananan 30 kuma a lokacin bushewa matsakaicin yanayin zafi sau da yawa ya wuce  ° C (104 ° F) a lokacin Mayu da Yuni. Lokacin hunturu yana da kusan watanni biyu da rabi kawai, tare da ƙananan yanayi zuwa 9-11 ° C (48-52 ° F) tsakanin Disamba da Janairu. Mafi girman zafin jiki da aka rubuta shine  ° C (111.0 ° F) kuma mafi ƙasƙanci shine 5 ° C (41 ° F).  Sau da yawa a farkon lokacin rani (tsakiyar Maris zuwa tsakiyar Mayu), guguwar ƙura da aka biyo bayan tsawa da ruwan sama mai ƙarfi sun mamaye birnin, suna kawo taimako daga zafi mai zafi. Wadannan tsawa suna da yanayi, kuma an san su da Kal Baisakhi (, Nor'westers). 

Winters yawanci sanyi ne, bushe-bushe, kuma gajere ne, duk da cewa suna da yawa.  Janairu yana da matsakaicin matsakaicin matsakaici na 39.2 °F (4.0 °C), amma yanayin zafi yakan kai daskarewa a matsakaicin kwanaki 71 kuma ya kasa tashi sama da daskarewa a matsakaicin kwanaki 8.3, kuma, tare da matsakaita a watan Disamba zuwa Fabrairu na kwanaki 6.3 da ya kai 70 °F (21 °C), ana yawan samun zafi kuma yawancin lokacin sanyi suna ganin ma'aunin zafi da sanyio.https://www.apollohospitals.com/ha/symptoms/mood-swings  Ƙarshen karatun 0 °F (-18 °C) ko mafi sanyi ya faru ne a ranar 18 ga Fabrairu, 2021. Mafi ƙarancin rikodin hukuma shine -17 °F (-27 °C) a ranar 12 ga Fabrairu, 1899, yayin da mafi ƙarancin kullun shine 2 °F (-17 °C) a ranar 12 ga Fabrairu, 1905, da 1 ga Janairu.  watan mafi sanyi da aka yi rikodin shi ne Janairu 1930 tare da matsakaicin zafin jiki na 23.1 °F (-4.9 °C).  Dusar ƙanƙara tana faruwa a kusan kowane lokacin hunturu, tare da ruwan dusar ƙanƙara na yau da kullun yana zama inci 7.6 (19.3 cm);  Tarin lokacin hunturu ya bambanta daga adadi a cikin 1931-32 da 1934-35 zuwa inci 25.2 (64.0 cm) a cikin 1947-48.  Mafi yawan dusar ƙanƙara a rana ɗaya shine inci 13.5 (34.3 cm) a ranar 24 ga Disamba, 2009.r.

 Tashoshin Kula da Yanayi 
Alipore ita ce babbar tashar, wacce tashar kasa da kasa ce. Amma akwai kuma tashoshin biyu a Dum Dum da Salt Lake.