Does most of Europe have plentiful rainfall?

Most of Europe does have plentiful rainfall. The Atlantic Ocean and the Mediterranean Sea provide moisture for much of the continent. The prevailing wind direction in Europe is from the west, so the western parts of the continent receive the most rainfall. The average annual precipitation in Europe is about 800 mm (31 inches). However, there is a great deal of variation in precipitation across the continent. The wettest region is the British Isles, which receives an average of over 1,200 mm (47 inches) of rain per year. The driest region is the Iberian Peninsula, which receives an average of less than 500 mm (20 inches) of rain per year.