IZiqithi zeMentawai zinezinye zezona ndawo zibalaseleyo zokusefa emhlabeni. Kukho asekhohlo agqibeleleyo kunye namalungelo kwindawo enye kunayo nayiphi na indawo emhlabeni. I-Mentawais ifumana ukudumba unyaka wonke kunye nelona xesha lihambelanayo phakathi kukaMatshi noNovemba. Sefa amaza angaxinananga kuluhlu olukhulu lweingqaqa, iindawo zokuqhawula iilwandle, iindawo zokuqhawula iindawo kunye namatheku angasese. Amanzi aseTropiki, acwengileyo aluhlaza kunye nokhetho olubanzi lweentlobo zamaza athatha amanqanaba ezakhono ukusuka kumbindi ukuya kwipro.
Nangona kukho amaza unyaka wonke, kwaye ixesha “lokucima” linokubakho kwimfezeko engaxinwanga, elona xesha lonyaka lixesha lonyaka elomileyo. Ukusukela ngasekupheleni kukaMatshi ukuya ekuqaleni kukaNovemba, ngexesha lobusika be-hemisphere esemazantsi, uLwandlekazi lwaseIndiya luvelisa amabala angayekiyo.
IZiqithi zaseMentawais zineemeko zeglasi ubukhulu becala ezinobushushu bomoya kwi-80's ukuya kwi-90's, kunye nobushushu bamanzi phakathi ukuya kuma-80 aphezulu. Ilanga linamandla kakhulu kufutshane ne-ikhweyitha, lenza izikhuselo zelanga ezisebenzayo eziphezulu, iigada zokugada, iminqwazi, kunye nentaphane ye-hydration.
Urhwebo ngePasika lulawula ngoMeyi ukuya kuthi ga ngo-Agasti/Septemba ngokwesiqhelo kwaye lulungele uninzi lwekhefu eliphambili. NgoNovemba ukuya kutsho ngoFebruwari ngokuqhelekileyo kukho imimoya yasemntla-ntshona, kwaye kukho iindawo ezithile ezithanda le ndlela yomoya. Iinyanga zotshintsho, ngexesha lokutshintsha kwamaxesha onyaka kaMatshi/Aprili kunye noSeptemba/Okthobha zinomoya okhanyayo noguquguqukayo. La maxesha ahlala eglasi kwaye inokuba lelona xesha lilungileyo lokuthatha iisampulu ezininzi kwiindawo ezahlukeneyo.
