Climate and monthly weather forecastBialystok, Poland
Climate and monthly weather forecast
The climate of Bialystok
Bialystok, Poland, can be classified within the Köppen climate zone Dfb: a predominately Humid Continental climate. It presents a weather pattern free of a dry season and characterized by warm summers. Weather trends spread across the year portray a distinct variance between summer and winter, with relative humidity fluctuating between 70% during the warmer months of April through September, and peaking around 90% in the colder months of January and December.Temperature swings exhibit a marked variation. The mercury dips as low as -5.1°C (22.8°F) in January, with a rapid transition to a balmy 24.2°C (75.6°F) by July, which marks the peak of summertime. This high-temperature period extends until August, followed by a gradual decline towards the end of the year. Rainfall levels undergo constant changes throughout the year, attaining maximum values between May and July, in the range of 62mm (2.44") to 69mm (2.72"), before tapering off steadily towards the end of the year.
Snow lovers can expect white landscapes from November through March, with the heaviest snowfall occurring in January when an impressive 192mm (7.56") of fresh snow is produced. The number of sunshine hours increases from a low 2.2 hours in January to a high of 10.2 come August.
The best time to visit Bialystok
For those who enjoy warm weather, the ideal time to plan a visit would be between May and August. These months offer enjoyable daytime high temperatures that range from 18.9°C (66°F) to a pleasant 24.2°C (75.6°F). During this period, visitors can expect long days with an average of 14 to a maximum of 16.9 daylight hours, allowing ample time to visit local attractions. The UV index reaches a yearly peak of 6 around July, coupled with ample sunshine hours, ranging from 9 to a high of 9.4, creating ideal conditions for those who enjoy outdoor activities.The worst time to visit Bialystok
The coldest periods of the year span from November to March, with temperatures hitting lows of -5.1°C (22.8°F) and daylight hours decreasing significantly. January, in particular, enters the picture as one of the harshest months, with one of the lowest sunshine durations (2.2 hours) and the highest snowfall figure going as high as 192mm (7.56").Spring weather in Bialystok
Spring in Bialystok is characterized by a noticeable increase in temperature, from chilly -0.5°C (31.1°F) lows in March to mild highs of 13.3°C (55.9°F) by April. This season witnesses increasing daylight hours, from 11.9 in March to 14 hours in April. Rainfall averages around 30mm (1.18") during this period, making it relatively wet. The wind speed averages around 12km/h (7.5mph), making it a breezy season.Summer weather in Bialystok
Summer in Bialystok is marked by the warmest temperatures of the year, with July and August reaching a high of 24.2°C (75.6°F). These months offer extended sunshine, with up to 9.4 hours per day, while rainfall increases to its yearly maximum, ranging from 62mm (2.44") to 69mm (2.72"). Terry of daylight peaks during these months, touching a high of 16.9 hours in June.Autumn weather in Bialystok
Autumn sees a significant cool down in temperatures, dropping from a high of 18.3°C (64.9°F) in September to a low of 5.9°C (42.6°F) by November. Rainfall decreases to 33mm (1.3") towards November and daylight hours shorten, standing at 8.7 hours by November end. Winds start to pick up speed, reaching an average of 12.4km/h (7.7mph).Winter weather in Bialystok
Winter in Bialystok is characterized by cold and snowy conditions. December marks the onset of winter with temperatures falling down to -0.8°C (30.6°F). January witnesses significant snowfall with an astonishing 192mm (7.56"), accompanied by 20.3 snowfall days. Despite these lower temperatures, winter also brings relative calm concerning winds with averages dropping down to 11.5km/h (7.1mph) in April.Weather in January
Despite seeing the deep winter in Bialystok, Poland, January's temperatures range from -5.1°C (22.8°F) to -1.5°C (29.3°F). Snow is a frequent visitor, creating a winter wonderland scenery throughout the city. Residents maintain a familiarity with the solitude of the cold and snowy landscape. Weather in January »Weather in February
Right after January, February presents colder nights with low temperatures typically reaching -3.6°C (25.5°F) during the darker hours, a substantial decrease from January. Frequent snowfall combined with the chilling winds define the city's weather characteristics during this month. Weather in February »Weather in March
Bialystok weather undergoes a considerable shift in March, with temperatures climbing from -0.5°C (31.1°F) to 5.8°C (42.4°F). Signs of spring start to emerge as temperatures become more comfortable compared to the colder months of January and February. Weather in March »Weather in April
In the heart of the spring season, April's weather in Bialystok, Poland sees a substantial increase in temperature, reaching from 3.8°C (38.8°F) to 13.3°C (55.9°F). This significant rise in temperature compared to March instills an element of warmth in the city's atmosphere. Weather in April »Weather in May
The transition to early summer is made evident with May's warmer temperatures, reaching up to 18.9°C (66°F) during the day. The city's landscapes transform extensively with lush greenery taking over. Residents enjoy the prolonged sunshine hours, understanding that the comfort of spring weather is gradually transitioning to the warm embrace of summer. Weather in May »Weather in June
June marks the arrival of summer in Bialystok with the warmest average temperatures, rising to 22.4°C (72.3°F) during the daytime. The city's weather characteristics lean largely towards clear skies and long daylight hours, offering ample opportunities for outdoor pastimes. Weather in June »Weather in July
The city of Bialystok, Poland experiences its warmest weather in July with temperatures peaking to 24.2°C (75.6°F). Summer flaunts itself flamboyantly with the longest daylight hours, allowing residents ample time to indulge in outdoor activities. Weather in July »Weather in August
During August, Bialystok maintains its summer warmth, with temperatures matching those of July, peaking at 24.2°C (75.6°F). August, while still being predominantly warm, hints at the approaching autumn as it brings down the intensity of summer just a notch towards the end. Weather in August »Weather in September
As autumn begins in earnest, September's temperatures in Bialystok descend to a cool range from 9.5°C (49.1°F) to 18.3°C (64.9°F). This marks a considerable drop compared to the warmth experienced during August. The decreased heat coupled with a relatively high frequency of rainfall transforms Bialystok's landscapes into a beautiful array of hues. Weather in September »Weather in October
October witnesses the full onset of autumn in Bialystok, Poland with average temperatures falling between 5°C (41°F) and 11.2°C (52.2°F). The strikingly colorful landscapes of September gradually start to fade, making way for the bare silhouettes of trees, a distinctive symbol of impending winter. Weather in October »Weather in November
November's transition into winter sees temperatures ranging from 2.1°C (35.8°F) to 5.9°C (42.6°F). Early snowfalls can be observed at times, hinting at the impending winter. Despite the chill, the city's landscapes maintain a certain charm as bare trees stand in stark contrast against crisp blue skies. Weather in November »Weather in December
With the coming of December, Bialystok, Poland experiences the true winter chill as temperatures drop to a cold -2°C (28.4°F) to 0.8°C (33.4°F) range. December sees a drastic increase in snowfall, with 126mm (4.96") on average covering the city in a white blanket. Weather in December »Updated: Feb 1, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month that records the lowest temperatures, with averages ranging from a high of -1.5°C (29.3°F) to a low of -5.1°C (22.8°F).
The most humid month in Bialystok, Poland, is January, with an average relative humidity of 92%.
Throughout the year, in Bialystok, Poland, there are 164.4 rainfall days, and 515mm (20.28") of precipitation is accumulated.
January through April, October through December are months with snowfall in Bialystok.
The month with the most snowfall in Bialystok is January, when snow falls for 20.3 days and typically aggregates up to 192mm (7.56") of snow.
In Bialystok, Poland, during the entire year, snow falls for 71.5 days and aggregates up to 596mm (23.46") of snow.
The months with the least sunshine in Bialystok, Poland, are January and February, with an average of 2.2h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
The months with the lowest humidity in Bialystok, Poland, are April and August, with an average relative humidity of 70%.
The month with the least rainfall is April, when the rain falls for 13.5 days and typically collects 27mm (1.06") of precipitation.
In Bialystok, snow does not fall in May through September.
The month with the most rainfall in Bialystok is June, when the rain falls for 17.5 days and typically aggregates up to 69mm (2.72") of precipitation.
The month with the longest days is June, with an average of 16h and 54min of daylight.
Bialystok's warmest season falls during July and August, averaging a high-temperature of 24.2°C (75.6°F).
With an average maximum UV index of 6, July is the month with the highest UV index in Bialystok.
August has the most sunshine of the year in Bialystok, with an average of 10.2h of sunshine.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
December has the shortest days of the year in Bialystok, Poland, with an average of 7h and 36min of daylight.
Average temperature
Bialystok, Poland
The warmest months (with the highest average high temperature) are July and August (24.2°C).
The month with the lowest average high temperature is January (-1.5°C).
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure
Bialystok, Poland
- Average pressure in January:
1016.4mbar - Average pressure in February:
1016.1mbar - Average pressure in March:
1015mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1015mbar - Average pressure in June:
1014mbar
- Average pressure in July:
1013.1mbar - Average pressure in August:
1016mbar - Average pressure in September:
1016.9mbar - Average pressure in October:
1018.2mbar - Average pressure in November:
1016.2mbar - Average pressure in December:
1015.5mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).
Average wind speed
Bialystok, Poland
- Average wind speed in January:
13km/h - Average wind speed in February:
12.4km/h - Average wind speed in March:
12.5km/h - Average wind speed in April:
11.5km/h - Average wind speed in May:
10.9km/h - Average wind speed in June:
10.6km/h
- Average wind speed in July:
10.5km/h - Average wind speed in August:
9.7km/h - Average wind speed in September:
11.3km/h - Average wind speed in October:
12.3km/h - Average wind speed in November:
12.4km/h - Average wind speed in December:
13.2km/h
The windiest month (with the highest average wind speed) is December (13.2km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity
Bialystok, Poland
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall
Bialystok, Poland
The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days
Bialystok, Poland
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
20.4 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall
Bialystok, Poland
The month with the highest snowfall is January (192mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Bialystok, Poland
- Average snowfall days in January:
20.3 days - Average snowfall days in February:
16.8 days - Average snowfall days in March:
10.7 days - Average snowfall days in April:
2.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1 days - Average snowfall days in November:
4.7 days - Average snowfall days in December:
15.5 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Bialystok, Poland
- Average daylight in January:
8h and 12min - Average daylight in February:
9h and 54min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 0min - Average daylight in May:
15h and 54min - Average daylight in June:
16h and 54min
- Average daylight in July:
16h and 24min - Average daylight in August:
14h and 42min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 42min - Average daylight in December:
7h and 36min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in January:
2h and 12min - Average sunshine in February:
2h and 12min - Average sunshine in March:
4h and 18min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
10h and 12min - Average sunshine in September:
7h and 30min - Average sunshine in October:
5h and 30min - Average sunshine in November:
3h and 30min - Average sunshine in December:
2h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 12min).
Average sunshine days
Bialystok, Poland
- Average sunshine days in January:
6.8 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
8.7 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
9.4 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
7.8 days
The month with the most sunshine days is October (15.5 days).
The months with the least sunshine days are January and February (6.8 days).
Average UV index
Bialystok, Poland
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Bialystok, Poland
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Bialystok, Poland
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
