The climate of the Krkonoše is marked by frequent weather changes. The winters are cold and snow depths above are not uncommon. Many parts of the mountains are covered with snow for five or six months. There is often dense fog at the higher altitudes. On average, mount Sněžka/Śnieżka is at least partly hidden in fog and/or clouds on 296 days, and has an average of about 0.2 °C, which is similar to places much further north, like Iceland. The main ridge is one of the most wind-exposed areas of Europe. On the northern side the Foehn wind is a frequent meteorological phenomenon. The annual precipitation ranges from about at the foot of the mountains up to on mount Sněžka/Śnieżka. The highest precipitation, at , is reached in the snow pits in the valleys at the foot of the main ridge.