Bielsko-Biala, where it's located

The climate of Bielsko-Biala 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 southern Poland, near the border with the Czech Republic and Slovakia, at an altitude of 350 meters (1,150 feet), at the foot of the Beskid mountains (which are part of the Carpathians). Because of the proximity of the mountains, precipitation is more abundant than in most of Poland, and thunderstorms are quite common in summer.
The average temperature of the coldest month (January) is of -1.3 °C (30 °F), that of the warmest month (July) is of 18.1 °C (65 °F). Here are the average temperatures.
Bielsko-Biala - Average temperatures
Min (°C)-4-4048111313961-3
Max (°C)2371318212323181373
Min (°F)252532394652555548433427
Max (°F)363745556470737364554537

Precipitation amounts to 965 millimeters (38 inches) per year: so, it is at an intermediate level. It ranges from 40 mm (1.6 in) in the driest month (February) to 145 mm (5.7 in) in the wettest (June). Here is the average precipitation.
Bielsko-Biala - Average precipitation

On average, there are around 1,670 sunshine hours per year. Here are the average sunshine hours per day.
Bielsko-Biala - Sunshine


Best Time

The best time to visit Bielsko-Biala 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.