Costa Rica ya gabatar da wani yanayi mai matukar banbanci. Zuwa arewa maso yamma, sarka ce dutse, raba ƙasa cikin biyu. A tsakiyar waɗannan tsaunukan akwai tsaunuka kuma a kan gangarenta tudun ƙasa mai dausayi.
Costa Rica tana da tsayin kilomita 212 na gabar tekun Caribbean, tare da kasancewar mangroves, rairayin bakin teku na yashi da fadama. Yankin Tekun Fasifik tare da manyan tsaunukan dutse, yana da gulf da ruwa da yawa kuma ya isa yanki na kilomita 1.016.
De fauna da Flora mai farin ciki. A cikin Costa Rica akwai fiye da nau'ikan 850 na tsuntsaye, daga cikin abin da quetzal, macaw, toucan da kuma hummingbird shugaban indigo. Da gandun daji na wurare masu zafi da kuma m rairayin bakin teku masu su ne mazaunin mazaunin dabbobi daban-daban. Ire-iren birai guda huɗu, rudun zaitun da kunkuru masu laushi, kwadi na kwarai, armadillos, jaguars da tapirs. Tafukan ruwa, tekuna, pumas, limpets, dabbobi masu rarrafe, amphibians da fiye da nau'ikan 1600 na sabo da ruwan gishiri sun hada da fauna na Costa Rica.
A cikin yankin teku na Osa zaka iya ganin kifayen kifi. Wadanda suka ziyarci wadannan ruwayen sune kogin whale da ke tashi. Fiye da nau'ikan butterflies 2000 da rana da kuma 4500 da daddare suke zagayawa ko'ina cikin ƙasar.
En Costa Rica akwai babban adana na ebony da itacen al'ul. Babban adadin bishiyoyi mahogany da raft, cypresses, oaks, ferns, guácimos, dabino da ceibas. Orchids suna da yawa kamar babu ko'ina a duniya, akwai bromeliads da yawa, Sinawa, sunflowers da rani.
El iklima a cikin Costa Rica na wurare masu zafi da rigar da lokacin rani. Lokacin damuna yana farawa daga Afrilu zuwa Disamba kuma lokacin rani sauran watanni. Yanayin zafin jiki ya kusa 14-22ºC, kodayake akwai yanayi daban-daban a wasu takamaiman wuraren wurin kamar San José, wurin da mazaunanta ke kira yanayin bazara madawwami saboda yana da matsakaita zafin jiki na 20 ºC. Kara dumi Yankin bakin teku ne wanda yake da matsakaicin zafin jiki 26 ºC. Rana tana fitowa kafin karfe 5 na asuba kuma ta fadi bayan 6 na yamma. Don haka idan kuna shirin tafiya zuwa Costa Rica, ɗauki hasken rana mai kyau don kauce wa matsaloli tare da dogon hasken rana.