Gdańsk, located on Poland’s Baltic coast, has a temperate oceanic climate with mild, pleasant summers and cold, cloudy winters. The city experiences moderate rainfall throughout the year, brisk sea breezes, and significant seasonal changes in daylight. Gdańsk’s weather is shaped by its maritime location, making it a dynamic destination for all seasons.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Gdańsk’s climate is influenced by the Baltic Sea, resulting in mild summers and relatively cold winters. Summers (June–August) are warm but rarely hot, with average highs of 20–23°C and lows around 13°C. July and August are the warmest and sunniest months, with up to 8–9 hours of sunshine per day and sea temperatures reaching 17–19°C, making it the best time for beach activities. Rainfall is moderate but peaks in July, with occasional thunderstorms and brisk coastal breezes. Evenings can be cool, so a light jacket is recommended.
Winters (December–February) are cold, cloudy, and often windy, with average highs of 1–3°C and lows around -2°C. Snow is common but usually not heavy, and rain, sleet, or drizzle are frequent. Days are short, with only 1–2 hours of sunshine and about 8 hours of daylight at the winter solstice. Spring (March–May) is cool and variable, with temperatures rising from 5°C in March to 16°C in May. Rainfall is lower in April, and daylight increases rapidly. Autumn (September–November) is mild to cool, with highs dropping from 16°C in September to 6°C in November, and frequent rain and wind. Annual precipitation averages 650–800 mm, and humidity is high year-round, peaking in winter. Winds are moderate, with stronger gusts in winter and spring.
Gdańsk’s weather supports a long sightseeing season, lively summer festivals, and atmospheric winter events. The city’s variable climate means visitors should pack for both sun and rain, especially if planning outdoor activities or beach visits.
| Average climate data for Gdańsk, Poland | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 1 | 2 | 6 | 12 | 16 | 20 | 22 | 22 | 18 | 12 | 7 | 3 | 22 |
| Average minimum temperature (°C) | -2 | -2 | 1 | 4 | 8 | 11 | 14 | 15 | 12 | 7 | 4 | -0 | -2 |
| Average precipitation (mm) | 37 | 30 | 33 | 20 | 46 | 53 | 71 | 57 | 38 | 35 | 35 | 42 | 496 |
| Average rainfall days (days) | 11 | 9 | 13 | 13 | 16 | 17 | 20 | 17 | 16 | 13 | 14 | 14 | 173 |
| Average snowfall (mm) | 129 | 91 | 55 | 20 | 1 | 0 | 0 | 0 | 0 | 2 | 29 | 111 | 439 |
| Average snowfall days (days) | 16 | 15 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 11 | 58 |
| Average relative humidity (%) | 87 | 86 | 79 | 72 | 72 | 73 | 75 | 71 | 75 | 79 | 86 | 88 | 78 |
| Average wind speed (km/h) | 16 | 15 | 15 | 13 | 13 | 12 | 13 | 12 | 14 | 15 | 15 | 17 | 14 |
| Average water temperature (°C) | 3 | 3 | 2 | 5 | 10 | 15 | 19 | 19 | 18 | 13 | 10 | 6 | 10 |
| Average daily daylight hours (h) | 8 | 9 | 11 | 14 | 16 | 17 | 16 | 14 | 12 | 10 | 8 | 7 | 12 |
| Average daily sunshine hours (h) | 2 | 3 | 5 | 9 | 9 | 9 | 9 | 10 | 8 | 5 | 3 | 3 | 6 |
| Average cloud coverage (%) | 73 | 71 | 58 | 40 | 39 | 39 | 42 | 32 | 41 | 51 | 64 | 68 | 51 |
| Average UV index | 1 | 2 | 2 | 4 | 4 | 5 | 5 | 4 | 4 | 3 | 1 | 1 | 3 |
The best time to visit Gdańsk is from late May to early September, when temperatures are mild to warm (16–23°C), days are long and sunny, and the sea is warmest for swimming. Summer is ideal for festivals, beach outings, and outdoor sightseeing, though July and August can be busy with tourists.
The least favourable time to visit Gdańsk is from November to March, when days are short, temperatures are cold (1–3°C), and rain, snow, and wind are frequent. Winter is best suited for those seeking a quieter, atmospheric experience and festive markets, but outdoor activities are limited.
Gdańsk’s annual average temperature is about 11–12°C. January is the coldest month (highs 1°C, lows -2°C), while July and August are the warmest (highs 20–23°C, lows 13°C).
Gdańsk receives about 650–800 mm of precipitation annually. Rain falls year-round, with July and August being wettest. Snow is common in winter but rarely heavy or long-lasting.
Gdańsk enjoys up to 8–9 hours of sunshine per day in June and July. Winter months are much darker, with only 1–2 hours of sunshine daily and frequent overcast skies.
The best beach season is July and August, when air temperatures reach 20–23°C and the Baltic Sea warms to 17–19°C. Evenings can be cool, and rain is possible, so bring a jumper and umbrella.
Gdańsk is often breezy, especially in winter and spring, with average wind speeds of 12–18 km/h. Coastal winds can make temperatures feel cooler, so windproof clothing is useful year-round.
Gdańsk is least crowded from November to March, outside the Christmas period. Spring and autumn offer fewer tourists than peak summer, but weather can be unpredictable and cooler.
Pack layers for spring and autumn, light clothing and sun protection for summer, and insulated, waterproof clothing for winter. An umbrella and windproof jacket are useful year-round.
The warmest month, with the highest average maximum temperature, is August (22.4 °C). The month with the lowest average maximum temperature is January (0.5 °C). Overall, the average maximum temperature over the whole year is 11.6 °C.
The month with the highest average minimum temperature is August (14.5 °C). The coldest month, with the lowest average minimum temperature, is January (-2.4 °C). Overall, the average minimum temperature over the whole year is 5.8 °C.
The month with the highest average water temperature is August (19.2 °C). The month with the lowest average water temperature is March (2.4 °C). Overall, the average water temperature over the whole year is 10.3 °C.
The wettest month, with the highest amount of precipitation, is July (71.1 mm). The driest month, with the least amount of precipitation, is April (19.8 mm). Over the whole year there are 495.9 mm of rainfall on average.
The month with the most days of rain is July (20.3 days). The month with the fewest days of rain is February (9 days). Over the whole year there are 172.6 days of rain on average.
The month with the most snowfall is January (129.2 mm). The months with the least snowfall are June, July, August and September (0 mm). Over the whole year there are 439.2 mm of snowfall on average.
The month with the most days of snowfall is January (16.1 days). The months with the fewest days of snowfall are July and September (0 days). Over the whole year there are 57.9 days of snowfall on average.
The month with the highest average relative humidity is December (87.6 %). The month with the lowest average relative humidity is August (71.2 %). The overall average relative humidity over the whole year is 78.5 %.
The windiest month, with the highest average wind speed, is December (16.7 km/h). The calmest month, with the lowest average wind speed, is August (12 km/h). The overall average wind speed over the whole year is 14.1 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is January (72.8 %). The month with the clearest skies, so the lowest cloud coverage, is August (31.9 %). Over the whole year there is an average cloud coverage of 51.3 %.
The month with the longest days, so the most daylight, is June (Average daylight: 17 h). The month with the shortest days, so the least daylight, is December (Average daylight: 7 h). Over the whole year there are 11.9 h of daylight per day on average.
The month with the most sunshine per day is August (Average sunshine: 10 h). The month with the least sunshine per day is January (Average sunshine: 2.2 h). Over the whole year there are 6.3 h of sunlight per day on average.
The months with the highest average UV index are June and July (UV index: 5). The months with the lowest average UV index are January, November and December (UV index: 1). Over the whole year the average UV index is 3.
