Day
0 °C
Night
-5 °C
Sea
0 °C
Precipitation
35 mm
in month
Rainy days
11 days
in month
Daylight
8 hours
average
Sunshine
1 hours
average
Humidity
86 %
We make the most from 40 years of historical weather data to predict the best weather conditions.
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We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.
Białystok, the heart of northeastern Poland, showcases a humid continental climate with distinct seasons. Sizzling summer days peak with temperatures around 24 °C (75 °F), while winter’s icy embrace can cool down to an average of -5 °C (22 °F) at night. The most rain-drenched period runs from June through August, with notable pourings of up to 80 mm (3.13 in). Conversely, crisp but relatively drier conditions appear as winter snows. With daylight hours waning to a measly 1 hour in December, the city often cloaks itself in overcast weather, but lengthening daylight in spring heralds the warming rays, reaching over 8 hours of sunshine in June.
January's chill has Białystok firmly in winter's grip. Daytime highs struggle to surpass 0 °C (31 °F), while nights dive deep into the freeze, averaging -5 °C (22 °F). The city may experience 11 days of precipitation, appearing mainly as snow, transforming it into a winter wonderland.
As Białystok slowly starts to emerge from the icy clutches of winter, February sees a slight rise in daytime temperatures to 1 °C (33 °F), with night temperatures remaining frosty at -5 °C (23 °F). Expect precipitation on 9 days, contributing to the continued presence of snow cover.
In March, Białystok witnesses the snows receding as spring starts to take hold. The mercury climbs to a more bearable 6 °C (42 °F) during the day but can still drop to an average low of -2 °C (28 °F) at night. Occasional showers can be expected, totaling 9 days of wet weather, as the city transitions into spring.
April's breath of spring warmth sees average daytime temperatures reach 13 °C (56 °F) in Białystok. The likelihood of rain heightens a bit, with the city subject to precipitation around 8 days of the month.
May in Białystok is characterized by a noticeable leap in temperatures with daytime averages at 19 °C (67 °F), and night temperatures becoming pleasant at 8 °C (46 °F). Frequent rain on 11 days maintains a lush environment, perfect for May's verdancy.
June greets Białystok with the year's longest days and abundant sunshine, clocking in at about 8 hours. Temperatures rise to a comfortable 22 °C (71 °F) during the day, but the city also faces its wettest period, with rain on 12 days and a notable 68 mm (2.67 in) of rainfall.
Peak summer warmth engulfs Białystok in July, with temperatures soaring to 24 °C (75 °F), while the nights offer a balmy relief at 13 °C (56 °F). An average of 12 days with rain punctuates the heat, bringing the monthly precipitation to a high of 80 mm (3.13 in).
August maintains the summer's warmth with average highs around 23 °C (74 °F), although nights start to cool off slightly to 12 °C (54 °F). As rainfall recedes to 10 days, the city catches its breath before autumn's arrival.
As Białystok transitions into September, there's a gradual cool-down with daytime highs around 17 °C (63 °F), and the number of sunny hours starts to decrease to 5 hours. Rainfall on 9 days hints at the upcoming change of seasons.
The hues of autumn are in full display in October in Białystok as temperatures retreat to a cool 12 °C (53 °F) during the day. Frequent rain on 9 days and diminishing daylight hours herald the deeper progression into fall.
November's cold bite returns to Białystok as the city braces for winter, with the average day temperature dropping to 4 °C (40 °F). Cloudy days dominate, reflected in the shorter sunny durations of 1 hour, and rain is still a possibility, expected on 10 days.
December drapes Białystok in wintry shades as temperatures hover around a chilly 1 °C (33 °F) by day and plunge to -4 °C (25 °F) at night. Expect precipitation on 11 days, likely to be snow, as the days become ever shorter, providing meager sunshine for only 1 hour.
January in Białystok is cold, with the daily highs barely reaching 0 °C (31 °F) and night temperatures averaging -5 °C (22 °F). Make sure to dress warmly, as the chill can deeply penetrate regardless of a short exposure.
February does bring a subtle warming trend to Białystok, with daytime temperatures inching up to 1 °C (33 °F), but it can still feel quite cold, especially in the shade or when the wind picks up.
March in Białystok brings milder temperatures with an average high of 6 °C (42 °F). As the sun starts to assert itself, layers can be shed during the day, though evenings still require substantial warmth.
April sees a significant shift towards warmer weather in Białystok with comfortable daytime highs of 13 °C (56 °F), making outdoor activities much more enjoyable as nature bursts into bloom.
May's weather in Białystok is rather pleasant, with the landscape coming to life under ample sun and warmth. Daytime temperatures averaging 19 °C (67 °F) invite locals and visitors to enjoy a variety of outdoor activities.
Indeed, June offers some of the warmest weather in Białystok with average daytime highs of 22 °C (71 °F). It's a month filled with extended daylight and the onset of summer warmth perfect for outdoor leisure.
July flaunts the height of summer in Białystok with the thermometer climbing to an average daytime peak of 24 °C (75 °F). The warmth is ideal for all the summertime festivities that the city has to offer.
Summer certainly holds on in Białystok through August, with the days remaining warm and sunny at an average 23 °C (74 °F), offering ample opportunity to enjoy the outdoors before the cooler weather sets in.
September in Białystok is pleasantly moderate, with average temperatures of 17 °C (63 °F) during the day. The nights grow cooler, hinting at the approach of autumn, but days are still mostly comfortable for a range of activities.
October brings crispness to Białystok's air, with days remaining cool, averaging 12 °C (53 °F), prompting the donning of jackets and warmer attire as the city prepares for the colder months ahead.
November in Białystok marks the distinct shift towards winter, with temperatures falling to an average high of 4 °C (40 °F) during the day and the landscape gradually losing its colorful autumn tones.
With daytime highs averaging just 1 °C (33 °F) and nighttime lows around -4 °C (25 °F), December is indeed cold in Białystok. Winter coats, hats, and gloves are essential as the city enters the heart of the cold season.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.