The climate of Spain is extremely varied. The northern coastal regions are cool and humid, with an average annual temperature of 14° C (57° F ); temperatures at Bilbao range from an average of 10° C (50° F ) in January–March to 19° C (66° F ) during July– September. The central plateau is cold in the winter and hot in the summer; Madrid has a winter average of about 8° C (46° F ) and a summer average of 23° C (73° F ). In Andalucía and the Levante, the climate is temperate except in summer, when temperatures sometimes reach above 40° C (104° F ) in the shade. The northern coastal regions have an average annual rainfall of 99 cm (39 in); the southern coastal belt has 41–79 cm (16–31 in); and the interior central plain averages no more than 50 cm (20 in) annually.
The Euro is the official currency of Spain. The Euro was launched in two stages. First, in January 1999, to became the new official currency of 11 EU Member States, replacing the old national currencies — such as the Spanish Peseta. It was introduced in the virtual form for bank transactions.
The euro has eight coin denominations: 1, 2, 5, 10, 20 and 50 cents, and 1 and 2 euros, while bank notes come in denominations of 5, 10, 20, 50, 100, 200 and 500 euros