Pneumatic tire with tread having good aqua-planing performance and good winter characteristics

A tire comprising a tread including a central region having a central row of profile blocks extending in the direction of the tire circumference and a pair of shoulder regions having shoulder rows of profile blocks, each of said shoulder rows being separated from the central row by a circumferential groove, wherein the profile blocks of the central row are mutually separated by inclined grooves which comprise two groove sections extending at an angle to and meeting each other at the central circumferential plane, and in that each of the two circumferential grooves extends at an acute angle to the tire circumferential plane in the region of the blocks which they bound laterally, and the profile blocks of each of the rows located in the shoulder regions are mutually separated by substantially straight transverse grooves, said transverse grooves extending at an angle of 65.degree. to 85.degree. with respect to the circumferential plane of the tire.