Black and summer truffle are adapted to dry and hot conditions, with well marked seasons, humid temperate or cold sub humid Mediterranean climate. Hot and humid springs, dry summers with some storms, no frost at the beginning of autumn, and winters with no long cold periods below 10ºC.
Rain between 425-900 mm. (600-1500 mm in Italy and France). 48-64 mm of rain monthly from June to the end of august, from a few summer storms.