Best time to visit Gdańsk
Poland · 20-year averages
Gdańsk is a city of two halves. August scores 76 and January scores 22 — a 54-point swing, which is the difference between a holiday and an endurance test. The month you pick matters more here than almost anywhere. The good window runs May to September — 5 months within ten points of the best.
August is the warmest month at 21.6 °C and January the coolest at 1 °C — a 20.6 °C spread across the year. It never reaches 30 °C in an average year, which takes heat off the list of reasons to avoid any particular month. At the other end, 63 nights a year fall below freezing: the winter here is a real one.
There is a real wet season here. January, July, November and December carry the rain — up to 15 wet days in a month — while March to May drop as low as 8. That 7-day gap is the biggest single difference between a good month and a bad one in Gdańsk, and it moves further than the temperature does.
The sea peaks at just 18.8 °C, which is wetsuit territory even at its warmest — a coast to look at rather than swim in. Daylight swings hard — 17.2 hours at midsummer against 7.4 at midwinter. That 9.8-hour difference changes how much fits into a day more than the temperature does.
The three strongest months are August, June, July. The one to think twice about is January. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.
Gdańsk month by month
| Month | High °C | Low °C | Rain days | Daylight h | Sea °C | Score | Verdict |
|---|---|---|---|---|---|---|---|
| January | 1 | -2 | 15 | 7.9 | 4.5 | 22 | The month to avoid |
| February | 1.8 | -1.7 | 12 | 9.7 | 3.2 | 28 | The month to avoid |
| March | 4.9 | 0.2 | 10 | 11.7 | 3 | 30 | The month to avoid |
| April | 9.8 | 3.8 | 8 | 14 | 4.3 | 48 | A hard month |
| May | 14.8 | 8.5 | 10 | 16 | 8.4 | 66 | A good month |
| June | 18.5 | 12.7 | 12 | 17.2 | 13.6 | 75 | A good month |
| July | 21.2 | 15.7 | 14 | 16.7 | 17.5 | 75 | A good month |
| August | 21.6 | 15.9 | 13 | 15 | 18.8 | 76 | A good month |
| September | 17.9 | 12.5 | 12 | 12.8 | 16.5 | 73 | A good month |
| October | 12.4 | 7.9 | 13 | 10.6 | 12.8 | 53 | Shoulder season |
| November | 7 | 4 | 14 | 8.6 | 9.2 | 35 | A hard month |
| December | 3.1 | 0.4 | 14 | 7.4 | 6.4 | 26 | The month to avoid |
Planning the rest of the trip
- Flight time to Gdańsk how long you are actually in the air
- Gdańsk time zone and the difference from home
- Days until your trip count down to the departure date