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
Zakopane - small town worth to visit
Tatra Mountains are range of high mountains. It is a very attractive place for tourists - lovers of nature and mountain climbing, also for skiers. The town Zakopane is very
prettily situated, most tourists choose accommodation there. The reason is a number of hotels and guesthouses - you can choose luxury apartment or a cosy room. The big advantage of Zakopane is also a chance to try some local cuisine - you can choose from many restaurants. Otherwise It is close to many popular mountain routes. You should visit Tatra Mountains - it is beautiful here in the summer and either in the winter.
Visiting Polish monuments of nature
May weekend is one of the first opportunities for short tourist trips. Picnic can spend not only a home barbecue, but also for mountain walks or visiting Polish monuments of nature, and above all walks of large parks and greenery around the beautiful lakes. This way you can not only eat well, but also to spend time in the fresh air and the opportunity to see the history of Polish tourism. Weather in early May is sometimes different, but certainly much more conducive to family walks in the mountains, than the weather prevailing during the cold weather. In contrast, people who visit the large parks, may in designated areas also organize family camping.