Bahrain weather is generally warm and fairly dry. The most pleasant time of year in Bahrain is during spring or autumn when sunshine is virtually guaranteed, along with warm temperatures tempered by soft breezes. Summers can be very hot and humid, though the humidity is modified at the end of the season when a dry northwesterly wind blows, known locally as the 'Al Barah'. Winter is cooler and influenced by low-pressure systems, which bring rainfall. Average rainfall is low, but most of it falls in winter.