Weather in Bilbao
The climate of Bilbao is oceanic, rather humid but without wide
extremes of temperature. The temperature ranges from an average of
70°F (21°C) in the height of summer to around 46°F (8°C) in
mid-winter. The average annual rainfall is rather high, but is
spread throughout the year, with the most rain being experienced
during spring and autumn. Light snow is possible in winter.