álamos has a semi-arid climate (köppen "bsh") bordering on a tropical savanna climate, with three seasons: a hot, dry season from april to june, a hot, humid wet season from july to october, and a warm, generally dry “winter” from november to march. occasionally the dry winter pattern is interrupted by the passage of frontal cloudbands: fell during january 1981, including between the fifth and the seventh of that month, and over in january 1979. during the hot early summer, temperatures can reach extreme heights; the record being on 16 june 1976.