Climate - Bialystok (Poland)

The climate of Bialystok is moderately continental, characterized by cold winters, with temperatures often below freezing (0 °C or 32 °F), and mild or pleasantly warm summers.
The city is located in northeastern Poland, in the Podlaskie Voivodeship, near the border with Belarus.
Winter is cold and gray. Snowfalls are frequent, but generally not abundant.
Sometimes, cold waves from Siberia can occur, and the temperatures can drop to -20 °C (-4 °F) or below. It reached -34.6 °C (-30 °F) in January 1987, -28 °C (-18.5 °F) in January 1985, and -30 °C (-22 °F) in February 2012.
In summer, the temperatures are pleasant and suitable for outdoor activities, although sometimes there can be rains and thunderstorms.
Every now and then (and more often in recent years due to global warming), there can be short hot periods, with maximum temperatures reaching or exceeding 30 °C (86 °F). In July 1994, it reached 35.5 °C (96 °F), and in August 2015, 34.5 °C (94 °F).
The average temperature of the coldest month (January) is of -3.2 °C (26 °F), that of the warmest month (July) is of 17.9 °C (64 °F). Here are the average temperatures.

Precipitation amounts to 575 millimeters (22.6 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest month (February) to 75 mm (3 in) in the wettest (July). Here is the average precipitation.

On average, there are around 1,740 sunshine hours per year. Here are the average sunshine hours per day.

Best Time

The best time to visit Bialystok runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket for the evening.