Polish climate
The climate is mostly temperate throughout the country. The climate is oceanic in the north and west and becomes gradually warmer and continental towards the south and east. Summers are generally warm, with average temperatures between 18 and 30 °C (64.4 and 86.0 °F) depending on a region. Winters are rather cold, with average temperatures around 3 °C (37.4 °F) in the northwest and ?6 °C (21 °F) in the northeast. Precipitation falls throughout the year, although, especially in the east; winter is drier than summer.98
Źródło: https://en.wikipedia.org/wiki/Poland#Climate
Well-known winter resorts in Poland
Many people take time off work during the winter and spends time in the Polish tourist resorts. Tourists come to the mountain resorts especially during the winter holidays. Such centers are adapted to the needs of single travelers and families. Although Poland is not a country known for its winter resorts, but staying in Zakopane or other mountain resorts for many people can be attractive and memorable, the more that take place in Poland more and more sporting events associated with winter sports and events related to the celebration of Carnival. Other attractions related to mountain tourism are walks in the mountains, sleigh rides and skiing lessons. As a result, Poland mountaineering can constantly develop and attract more and more people.
About geography
Poland's territory extends across several geographical regions, between latitudes 49° and 55° N, and longitudes 14° and 25° E. In the north-west is the Baltic seacoast, which extends from the Bay of Pomerania to the Gulf of Gdańsk. This coast is marked by several spits, coastal lakes (former bays that have been cut off from the sea), and dunes. The largely straight coastline is indented by the Szczecin Lagoon, the Bay of Puck, and the Vistula Lagoon. The centre and parts of the north lie within the North European Plain.
Rising above these lowlands is a geographical region comprising the four hilly districts of moraines and moraine-dammed lakes formed during and after the Pleistocene ice age. These lake districts are the Pomeranian Lake District, the Greater Polish Lake District, the Kashubian Lake District, and the Masurian Lake District. The Masurian Lake District is the largest of the four and covers much of north-eastern Poland. The lake districts form part of the Baltic Ridge, a series of moraine belts along the southern shore of the Baltic Sea.
South of the Northern European Lowlands lie the regions of Lusatia, Silesia and Masovia, which are marked by broad ice-age river valleys. Farther south lies the Polish mountain region, including the Sudetes, the Kraków-Częstochowa Upland, the Świętokrzyskie Mountains, and the Carpathian Mountains, including the Beskids. The highest part of the Carpathians is the Tatra Mountains, along Poland's southern border.
Źródło: https://en.wikipedia.org/wiki/Poland#Geography