"I don't know if we will reach" the 100 million tourists, Spanish Tourism Minister Jordi Hereu said, adding though that he did not consider that as a cause for concern since tourist spending was still rising.
According to local media, the situation has become so severe that some managers have resorted to giving staff time off in mid-July - typically the peak of the summer season.
"Tourism is no longer the main dynamiser of the Spanish economy," Exceltur Vice President Oscar Perelli told a news conference, adding that the sector will no longer far exceed Spain's expected economic growth of 2.6%.