The warm encircling Gulf Stream provides the islands with a temperate climate. The weather is maritime and quite changeable, from moments of brilliant sunshine to misty hill fog and showers.
The harbours never freeze and the temperature in winter time is very moderate considering the high latitude. Snowfall occurs, but is shortlived.
The average temperature ranges from 3°C in winter to 11°C in the summer. In sheltered areas, the temperature can be much higher, but the air is always fresh and clean no matter what the season.