Gdansk records about 561mm of rain across roughly 102 wet days a year, which is a 28% chance on an average day. July is the wettest month at 68mm (12% of the annual total) and February the driest at 25mm. Local rain type: steady rain. Gdańsk gets Baltic Sea-influenced rain — summer showers can be sudden but usually brief. The covered Długi Targ market street offers shelter.
Chance of rain on an average day: 28%
Rainfall climatology for Gdansk. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 561mm |
| Rain days per year | 102 |
| Odds on an average day | 28% |
| Wettest month | July — 68mm over 13 days |
| Driest month | February — 25mm over 5 days |
| Rain type | steady rain |
| Best dry window | May and June offer the driest conditions for exploring the harbor. |
| Worst rain window | July and August bring the most rainfall as summer showers. |
July delivers 172% more rain than February (68mm vs 25mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 12% of the annual total, so rain in Gdansk is spread through the year — there is no season you can rely on being dry.
Gdansk rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 13 days in July against 5 in February — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 32mm | 6 | 20% | 2°C |
| February | 25mm | 5 | 17% | 2°C |
| March | 30mm | 6 | 20% | 5°C |
| April | 28mm | 5 | 17% | 9°C |
| May | 42mm | 8 | 27% | 15°C |
| June | 58mm | 11 | 37% | 19°C |
| July | 68mm | 13 | 43% | 22°C |
| August | 62mm | 12 | 40% | 22°C |
| September | 55mm | 11 | 37% | 19°C |
| October | 48mm | 9 | 30% | 15°C |
| November | 48mm | 9 | 30% | 9°C |
| December | 36mm | 7 | 23% | 5°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Gdansk we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Gdansk records rain on roughly 102 days a year — about a 28% chance on any given day — totalling around 561mm.
July, with about 68mm over 13 rain days. That is 12% of the entire year's rainfall in a single month.
February is the driest month at 25mm across roughly 5 days. May and June offer the driest conditions for exploring the harbor.
Gdańsk gets Baltic Sea-influenced rain — summer showers can be sudden but usually brief. The covered Długi Targ market street offers shelter.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.