Bydgoszcz climate

Name: Bydgoszcz
Address: PL

Bydgoszcz is warmest in July, with average highs of 24 °C, and coldest in January, when nights average -3.1 °C. July is the wettest month (84 mm) and February the driest (32 mm). Figures are 1991–2020 climate normals.

Across a full year Bydgoszcz averages 587 mm of rain, 31 days above 25 °C and 88 days below freezing.

Poland · population 330,038 · 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 July 24 °C
Coldest month January -3.1 °C
Driest month February 32 mm
Wettest month July 84 mm
Least cloud August 58 % cloud
Hottest on record August 36 °C
Coldest on record January -27 °C

What to expectBydgoszcz through the year

Bydgoszcz has a clear annual cycle: average daily highs run from 1.4 °C in January to 24 °C in July, a swing of 20 °C in mean temperature across the year.

Counted across a normal year, 31 days a year reach 25 °C, 4 of them reach 30 °C, 88 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in August.

Rain is strongly seasonal. July averages 84 mm against 32 mm in February — 2.6 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	1.4 °C	39 mm	78 %
February	3.1 °C	32 mm	77 %
March	7.2 °C	43 mm	68 %
April	13.5 °C	35 mm	59 %
May	18.4 °C	59 mm	59 %
June	21.5 °C	63 mm	60 %
July	23.5 °C	84 mm	58 %
August	23.3 °C	62 mm	58 %
September	18.4 °C	51 mm	63 %
October	12.6 °C	42 mm	69 %
November	6.6 °C	36 mm	79 %
December	2.7 °C	40 mm	80 %

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	1.4 °C	-3.1 °C	-0.8 °C	13.4 °C	-27.4 °C	0	0	21
February	3.1 °C	-2.6 °C	0.2 °C	14.5 °C	-24.6 °C	0	0	19
March	7.2 °C	-0.5 °C	3.3 °C	20.0 °C	-19.8 °C	0	0	16
April	13.5 °C	3.6 °C	8.8 °C	27.3 °C	-10.9 °C	0	0	5
May	18.4 °C	8.6 °C	13.8 °C	30.8 °C	-1.3 °C	3	0	0
June	21.5 °C	12.3 °C	17.3 °C	36.1 °C	4.3 °C	6	1	0
July	23.5 °C	14.6 °C	19.3 °C	35.6 °C	7.0 °C	11	2	0
August	23.3 °C	14.4 °C	19.0 °C	36.3 °C	7.6 °C	10	1	0
September	18.4 °C	10.6 °C	14.5 °C	33.3 °C	2.3 °C	1	0	0
October	12.6 °C	6.3 °C	9.4 °C	22.5 °C	-3.9 °C	0	0	2
November	6.6 °C	2.2 °C	4.4 °C	17.2 °C	-17.6 °C	0	0	8
December	2.7 °C	-1.3 °C	0.8 °C	13.6 °C	-19.8 °C	0	0	18

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	39 mm	10	8.1 h/day	78 %	85 %	20 km/h
February	32 mm	8	9.8 h/day	77 %	82 %	20 km/h
March	43 mm	10	12 h/day	68 %	78 %	20 km/h
April	35 mm	8	14 h/day	59 %	71 %	18 km/h
May	59 mm	11	16 h/day	59 %	70 %	18 km/h
June	63 mm	11	17 h/day	60 %	69 %	18 km/h
July	84 mm	12	16 h/day	58 %	71 %	17 km/h
August	62 mm	10	15 h/day	58 %	71 %	16 km/h
September	51 mm	8	13 h/day	63 %	76 %	17 km/h
October	42 mm	9	11 h/day	69 %	82 %	18 km/h
November	36 mm	9	8.7 h/day	79 %	87 %	18 km/h
December	40 mm	9	7.6 h/day	80 %	87 %	19 km/h

How Bydgoszcz 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
Bydgoszcz	24 °C	-3.1 °C	587 mm	31
Poznań · Poland	24 °C	-2.6 °C	592 mm	33
Gdańsk · Poland	22 °C	-2.3 °C	600 mm	18
Gdynia · Poland	21 °C	-1.8 °C	705 mm	10

Where Bydgoszcz ranks

Ranking	Position	Value
The driest places in Europe in November	49thof 50	36 mm

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

QuestionsCommon questions about Bydgoszcz’s climate

When is the best time to visit Bydgoszcz?

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, July is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Bydgoszcz get?

In July, the warmest month, daily highs average 24 °C. About 4 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average -3.1 °C in January, the coldest month. A normal year has 88 nights below freezing.

Which month is wettest in Bydgoszcz?

July, averaging 84 mm over 12 days with rain. The driest month is February with 32 mm. The year as a whole averages 587 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 Bydgoszcz 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
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.