Ĺ umava National Park

Climate

In the Šumava region, mean annual temperatures depend on the elevation above sea level, from 6 °C at 750 m to 3 °C at 1300 m. Notable exceptions to this temperature gradient are several inversion localities in valleys and forest enclaves, where the temperature in summer is 2 °C below the average, and in winter is up to 4 °C colder than on peaks which lie at the same elevation.

The north–eastern margins have the lowest annual precipitation totals at around 800–900 mm. Moving towards the main border ridge the precipitation increases rapidly and the highest values are found along the state border. The area to the south of BĹ™ezník has 1600 mm or more, and other border ridge localities receive 1400–1500 mm of precipitation per year. This difference in precipitation is caused by orographic influences during the predominant westerly air flows. The Bavarian side of the ridge and Czech territory along the ridge are on the windward side, but the north–eastern slopes are on the leeward side - receiving half as much precipitation. The primary precipitation maximum is in June and July. The secondary precipitation maximum in December depends on the frequency of westerly winds. The highest elevations along the state border have the richest snowfall. Contiguous snow cover is found for 90–100 days per year at the lowest elevations but the highest elevations can be snow covered for more than 200 days a year. The average maximum height of snow cover ranges from 40 cm at the lowest elevations to 150 cm or more at the highest.