Gdańsk climate

Name: Gdańsk
Address: PL

Gdańsk is warmest in August, with average highs of 22 °C, and coldest in January, when nights average -2.3 °C. July is the wettest month (83 mm) and February the driest (30 mm). Figures are 1991–2020 climate normals.

Across a full year Gdańsk averages 600 mm of rain, 18 days above 25 °C and 79 days below freezing.

Poland · population 487,371 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 22 °C
Coldest month January -2.3 °C
Driest month February 30 mm
Wettest month July 83 mm
Least cloud May 57 % cloud
Hottest on record August 34 °C
Coldest on record February -22 °C
Warmest sea August 19 °C

What to expectGdańsk through the year

Gdańsk has a clear annual cycle: average daily highs run from 1.6 °C in January to 22 °C in August, a swing of 19 °C in mean temperature across the year.

Counted across a normal year, 18 days a year reach 25 °C, 2 of them reach 30 °C, 79 nights drop below freezing. The warmest reading in the 1991–2020 record is 34 °C, in August.

Rain is strongly seasonal. July averages 83 mm against 30 mm in February — 2.8 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Gdańsk is warmest in August at 19 °C and coldest in February at 2.9 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	1.6 °C	37 mm	77 %
February	2.6 °C	30 mm	77 %
March	6.2 °C	37 mm	68 %
April	11.8 °C	40 mm	58 %
May	16.6 °C	59 mm	57 %
June	19.9 °C	68 mm	59 %
July	22.2 °C	83 mm	58 %
August	22.3 °C	69 mm	57 %
September	17.8 °C	51 mm	63 %
October	12.3 °C	47 mm	68 %
November	6.7 °C	38 mm	79 %
December	3.0 °C	41 mm	79 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	1.6 °C	-2.3 °C	-0.3 °C	12.4 °C	-20.6 °C	0	0	20
February	2.6 °C	-2.2 °C	0.2 °C	14.0 °C	-22.4 °C	0	0	18
March	6.2 °C	-0.3 °C	2.9 °C	18.4 °C	-13.1 °C	0	0	15
April	11.8 °C	3.4 °C	7.7 °C	25.9 °C	-7.7 °C	0	0	5
May	16.6 °C	8.0 °C	12.6 °C	28.0 °C	-1.2 °C	1	0	0
June	19.9 °C	11.9 °C	16.2 °C	33.5 °C	4.3 °C	3	0	0
July	22.2 °C	14.7 °C	18.6 °C	33.8 °C	7.2 °C	7	1	0
August	22.3 °C	14.7 °C	18.6 °C	34.2 °C	8.4 °C	6	1	0
September	17.8 °C	11.3 °C	14.5 °C	31.2 °C	2.8 °C	1	0	0
October	12.3 °C	6.9 °C	9.5 °C	22.2 °C	-2.5 °C	0	0	1
November	6.7 °C	2.8 °C	4.7 °C	15.8 °C	-13.3 °C	0	0	7
December	3.0 °C	-0.6 °C	1.3 °C	12.6 °C	-17.2 °C	0	0	15

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	37 mm	10	7.9 h/day	77 %	84 %	24 km/h	4.2 °C
February	30 mm	9	9.7 h/day	77 %	83 %	24 km/h	2.9 °C
March	37 mm	10	12 h/day	68 %	79 %	23 km/h	3.1 °C
April	40 mm	9	14 h/day	58 %	75 %	21 km/h	5.4 °C
May	59 mm	11	16 h/day	57 %	73 %	20 km/h	9.7 °C
June	68 mm	12	17 h/day	59 %	73 %	20 km/h	14.4 °C
July	83 mm	12	17 h/day	58 %	75 %	20 km/h	17.7 °C
August	69 mm	12	15 h/day	57 %	74 %	19 km/h	19.0 °C
September	51 mm	9	13 h/day	63 %	77 %	21 km/h	16.6 °C
October	47 mm	10	11 h/day	68 %	81 %	22 km/h	12.9 °C
November	38 mm	9	8.5 h/day	79 %	86 %	22 km/h	9.2 °C
December	41 mm	10	7.3 h/day	79 %	86 %	23 km/h	6.2 °C

How Gdańsk compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Gdańsk	22 °C	-2.3 °C	600 mm	18
Gdynia · Poland	21 °C	-1.8 °C	705 mm	10
Kaliningrad · Russia	23 °C	-3.6 °C	696 mm	23
Olsztyn · Poland	22 °C	-4.6 °C	655 mm	21
Bydgoszcz · Poland	24 °C	-3.1 °C	587 mm	31

Where Gdańsk ranks

Ranking	Position	Value
Best beach destinations in Europe in February	45th of 50	14/100
Best beach destinations in Europe in December	47th of 50	11/100

Planning a trip? See the best time to visit Gdańsk.

QuestionsCommon questions about Gdańsk’s climate

When is the best time to visit Gdańsk?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August sit closest to 20 °C on average, August is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Gdańsk get?

In August, the warmest month, daily highs average 22 °C. About 2 days a year pass 30 °C. The highest value in the 1991–2020 record is 34 °C.

How cold does it get in winter?

Nights average -2.3 °C in January, the coldest month. A normal year has 79 nights below freezing.

Which month is wettest in Gdańsk?

July, averaging 83 mm over 12 days with rain. The driest month is February with 30 mm. The year as a whole averages 600 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Gdańsk rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 54.352°, 18.649° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.