Do you need to know, when is the best time to go to Poland? Then you should take a look here, what weather you can expect there during the year.
The climate of Poland is temperate. You can expect cold, quite cloudy, moderately severe winters with frequent precipitation, and mild summers with quite frequent rains. Summer is usually less humid than winter. Spring and autumn are generally sunny.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Augustów, Auschwitz Birkenau, Beskids, Bełchatów, Bełżec, Białowieża, Białowieża National Park, Białystok, Bielawa, Bielsko Biała, Bieszczady, Biskupin, Bochnia, Bolesławiec, Braniewo, Brzeg, Busko Zdrój, Bydgoszcz, Bytom, Bytów, Chałupy, Chełm, Chełmno, Chochołów, Ciechocinek, Cieszyn, Częstochowa, Darłowo, Dolnośląskie, Dziekanowice, Dziwnów, Dębno, Eastern Beskids, Elbląg, Ełk, Frombork, Gdańsk, Gdynia, Gliwice, Gniezno, Gorce, Gorzów Wielkopolski, Grudziądz, Gąbin, Hel, Iława, Jarosław, Jastarnia, Jastrzębia Góra, Jawor, Jelenia Góra, Jura Mountains, Jurata, Józefów, Kadyny, Kalisz, Kalwaria Zebrzydowska, Kamień Pomorski, Kampinos Park Narodowy, Karkonosze Park Narodowy, Karpacz, Katowice, Kazimierz Dolny, Kielce, Koszalin, Kołobrzeg, Kościerzyna, Kraków, Krosno, Krutyń, Krynica Zdrój, Krynica Morska, Kudowa Zdrój, Kujawsko Pomorskie, Kórnik, Kędzierzyn Koźle, Kętrzyn, Kłodzko, Legnica, Limanowa, Lubartow, Lubelskie, Lubin, Lublin, Lubuskie, Malbork, Malczyce, Manasterzec, Mazowieckie, Małopolskie, Mielno, Mikołajki, Międzyodrze, Międzyzdroje, Moszna, Nakło, Niedzica, Niepołomice, Nowy Sącz, Nowy Targ, Nowy Wiśnicz, Nysa, Ogrodzieniec, Ojców Park Narodowy, Olsztyn, Opole, Opolskie, Ostróda, Ostrów Lednicki, Ostrów Wielkopolski, Owińska, Oświęcim, Pieniński Park Narodowy, Pilica, Piotrków Trybunalski, Podhale, Podkarpackie, Podlaskie, Police, Pomorskie, Poznań, Przemyśl, Puck, Puszczykowo, Płock, Rabka Zdrój, Radom, Rogalin, Rowy, Roztocze, Ruda Śląska, Rzeszów, Sandomierz, Sanok, Sejny, Siemiechów, Silesian Beskids, Silesian Voivodeship, Slowinski National Park, Solina, Sopot, Sosnowiec, Stołowe Góry Park Narodowy, Sucha Beskidzka, Suwałki, Szamotuły, Szczawnica Zdrój, Szczecin, Szczyrk, Szreniawa, Sztutowo, Sztynort, Szydłowiec, Słubice, Tarnowskie Góry, Tarnów, Tatra National Park, Toruń, Trzęsacz, Tykocin, Ustka, Ustronie Morskie, Wadowice, Wambierzyce, Warmia Masuria, Warsaw, Wałbrzych, Wdzydze Kiszewskie, Western Beskids, Wieliczka, Wielkopolski National Park, Wielkopolskie, Wigry, Wigry Park Narodowy, Wisła, Wolin, Wolsztyn, Wrocław, Wschowa, Wągrowiec, Władysławowo, Zachodniopomorskie, Zamość, Zawoja, Zielona Góra, Łańcut, Łeba, Łukta, Łódzkie, Łódź, Łęknica, Świdnica, Świdwie, Świeradów Zdrój, Świnoujście, Świętokrzyskie, Żnin.
Let's look now what weather you can expect in the area around the capital and in many other cities. The warmest month here is July, the average maximum temperature is 24.7 ℃ (76.46 ℉). The average minimum temperature in this month is 13.8 ℃ (56.84 ℉). The coldest month here is January, the average maximum temperature is 0.9 ℃ (33.62 ℉). The average minimum temperature in this month is -4.3 ℃ (24.26 ℉). The most rainy month here is January, the average number of rainy days is 16.4. The least rainy month here is April, the average number of rainy days is 11.3. 
When travelling to some places in Poland, always consider the altitude of the the place as well. The highest point here is Rysy (2499 m) and the lowest point is near Raczki Elblaskie (-2 m). So there are quite big differences in altitudes in this country, so you can expect the weather to be different in different altitudes as well. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Typical (usual) weather in Poland in January is this: The average highest temperature in Poland in January is 0.9 ℃ (33.62 ℉). The average lowest temperature is -4.3 ℃ (24.26 ℉). At the beginning of January you can expect higher temperatures, the average highest temperature is around 1.35 ℃ (34.43 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 1.6 ℃ (34.88 ℉). The average number of rainy days in January is 16.4. The average rainfall is 26.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 7:46 (hours and minutes), in the middle of the month 8:14 and at the end of the month 8:58.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in February is this: The average highest temperature in Poland in February is 2.3 ℃ (36.14 ℉). The average lowest temperature is -3.7 ℃ (25.34 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 1.6 ℃ (34.88 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 4.65 ℃ (40.37 ℉). The average number of rainy days in February is 14.6. The average rainfall is 26.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 8:58 (hours and minutes), in the middle of the month 9:53 and at the end of the month 10:52.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Poland in March is this: The average highest temperature in Poland in March is 7 ℃ (44.6 ℉). The average lowest temperature is -0.7 ℃ (30.74 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 4.65 ℃ (40.37 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 10.6 ℃ (51.08 ℉). The average number of rainy days in March is 13.5. The average rainfall is 29.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:52 (hours and minutes), in the middle of the month 11:53 and at the end of the month 12:54.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Poland in April is this: The average highest temperature in Poland in April is 14.2 ℃ (57.56 ℉). The average lowest temperature is 3.7 ℃ (38.66 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 10.6 ℃ (51.08 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 16.95 ℃ (62.51 ℉). The average number of rainy days in April is 11.3. The average rainfall is 33.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:54 (hours and minutes), in the middle of the month 13:55 and at the end of the month 14:52.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in May is this: The average highest temperature in Poland in May is 19.7 ℃ (67.46 ℉). The average lowest temperature is 8.9 ℃ (48.02 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 16.95 ℃ (62.51 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 20.8 ℃ (69.44 ℉). The average number of rainy days in May is 12.3. The average rainfall is 53.8 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 14:52 (hours and minutes), in the middle of the month 15:43 and at the end of the month 16:23.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in June is this: The average highest temperature in Poland in June is 21.9 ℃ (71.42 ℉). The average lowest temperature is 11.8 ℃ (53.24 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 20.8 ℃ (69.44 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 23.3 ℃ (73.94 ℉). The average number of rainy days in June is 12.6. The average rainfall is 69.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 16:23 (hours and minutes), in the middle of the month 16:44 and at the end of the month 16:44.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Poland in July is this: The average highest temperature in Poland in July is 24.7 ℃ (76.46 ℉). The average lowest temperature is 13.8 ℃ (56.84 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 23.3 ℃ (73.94 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 24.55 ℃ (76.19 ℉). The average number of rainy days in July is 12.5. The average rainfall is 72.8 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 16:44 (hours and minutes), in the middle of the month 16:21 and at the end of the month 15:40.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in August is this: The average highest temperature in Poland in August is 24.4 ℃ (75.92 ℉). The average lowest temperature is 13.5 ℃ (56.3 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 24.55 ℃ (76.19 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 21.5 ℃ (70.7 ℉). The average number of rainy days in August is 11.4. The average rainfall is 63.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 15:40 (hours and minutes), in the middle of the month 14:49 and at the end of the month 13:53.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in September is this: The average highest temperature in Poland in September is 18.6 ℃ (65.48 ℉). The average lowest temperature is 9.3 ℃ (48.74 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 21.5 ℃ (70.7 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 15.65 ℃ (60.17 ℉). The average number of rainy days in September is 11.9. The average rainfall is 48.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:53 (hours and minutes), in the middle of the month 12:53 and at the end of the month 11:53.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in October is this: The average highest temperature in Poland in October is 12.7 ℃ (54.86 ℉). The average lowest temperature is 5 ℃ (41 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 15.65 ℃ (60.17 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 9.45 ℃ (49.01 ℉). The average number of rainy days in October is 12.3. The average rainfall is 32.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:53 (hours and minutes), in the middle of the month 10:53 and at the end of the month 9:54.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in November is this: The average highest temperature in Poland in November is 6.2 ℃ (43.16 ℉). The average lowest temperature is 0.7 ℃ (33.26 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 9.45 ℃ (49.01 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 4 ℃ (39.2 ℉). The average number of rainy days in November is 14.8. The average rainfall is 39.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 9:54 (hours and minutes), in the middle of the month 9:00 and at the end of the month 8:15.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Poland in December is this: The average highest temperature in Poland in December is 1.8 ℃ (35.24 ℉). The average lowest temperature is -2.9 ℃ (26.78 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 4 ℃ (39.2 ℉). At the end of December you can expect lower temperatures, the average highest temperature is around 1.35 ℃ (34.43 ℉). The average number of rainy days in December is 15.8. The average rainfall is 35.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 8:15 (hours and minutes), in the middle of the month 7:47 and at the end of the month 7:42.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.| Warsaw | temperature: - | highest temperature: 1.8 ℃ (35.24 ℉) | lowest temperature: -2.9 ℃ (26.78 ℉) | rainfall: 35.5mm | rainy days: 15.8 |
| Gdansk | temperature: - | highest temperature: 2.7 ℃ (36.86 ℉) | lowest temperature: -2 ℃ (28.4 ℉) | rainfall: 38.7mm | rainy days: 17.9 |
| Poznan | temperature: - | highest temperature: 2.7 ℃ (36.86 ℉) | lowest temperature: -1.9 ℃ (28.58 ℉) | rainfall: 40.4mm | rainy days: 16.7 |
| Krakow | temperature: - | highest temperature: 2.3 ℃ (36.14 ℉) | lowest temperature: -3.6 ℃ (25.52 ℉) | rainfall: 38.3mm | rainy days: 17 |
| Szczecin | temperature: - | highest temperature: 3.4 ℃ (38.12 ℉) | lowest temperature: -1 ℃ (30.2 ℉) | rainfall: 43.9mm | rainy days: 16.9 |
| Suwalki | temperature: - | highest temperature: 0 ℃ (32 ℉) | lowest temperature: -4.5 ℃ (23.9 ℉) | rainfall: 41.5mm | rainy days: 17.8 |
| Wroclaw | temperature: - | highest temperature: 3.5 ℃ (38.3 ℉) | lowest temperature: -2.5 ℃ (27.5 ℉) | rainfall: 33mm | rainy days: 15.5 |
| Bialystok | temperature: - | highest temperature: 0.6 ℃ (33.08 ℉) | lowest temperature: -4 ℃ (24.8 ℉) | rainfall: 37.7mm | rainy days: 16.8 |
| Klodzko | temperature: - | highest temperature: 1.9 ℃ (35.42 ℉) | lowest temperature: -3.3 ℃ (26.06 ℉) | rainfall: 28.9mm | rainy days: 15.3 |
| Koszalin | temperature: - | highest temperature: 3.2 ℃ (37.76 ℉) | lowest temperature: -1 ℃ (30.2 ℉) | rainfall: 55.9mm | rainy days: 18.5 |
| Lodz | temperature: - | highest temperature: 1.9 ℃ (35.42 ℉) | lowest temperature: -3 ℃ (26.6 ℉) | rainfall: 42.9mm | rainy days: 17.3 |
| Lublin | temperature: - | highest temperature: 1 ℃ (33.8 ℉) | lowest temperature: -3.6 ℃ (25.52 ℉) | rainfall: 34.9mm | rainy days: 17.3 |
| Olsztyn | temperature: - | highest temperature: 1.3 ℃ (34.34 ℉) | lowest temperature: -3.1 ℃ (26.42 ℉) | rainfall: 48.1mm | rainy days: 18.6 |
| Rzeszow | temperature: - | highest temperature: 1.8 ℃ (35.24 ℉) | lowest temperature: -3.5 ℃ (25.7 ℉) | rainfall: 37.3mm | rainy days: 15.4 |
| Torun | temperature: - | highest temperature: 2.4 ℃ (36.32 ℉) | lowest temperature: -2.6 ℃ (27.32 ℉) | rainfall: 39mm | rainy days: 17 |
| Zielona Gora | temperature: - | highest temperature: 2.7 ℃ (36.86 ℉) | lowest temperature: -1.9 ℃ (28.58 ℉) | rainfall: 45.2mm | rainy days: 18.2 |