Last updated: August 27, 2025
September in Bielsko-Biała offers a delightful mix of warm and cool temperatures, with highs reaching up to 29°C (84°F) and lows dipping to 2°C (35°F). The average temperature hovers around 14°C (57°F), making it an ideal time for outdoor activities amidst the changing seasons. However, expect some rainfall, as the month sees about 123 mm (4.9 in) of precipitation over 14 days, contributing to the region's lush greenery. With humidity levels at 67%, the air feels refreshing, perfect for embracing the beauty of early autumn in this scenic Polish city.
As September arrives in Bielsko-Biała, Poland, the transition from summer to autumn brings a notable change in temperatures. With minimums around 2°C (35°F) and daily averages of 14°C (57°F), the month offers a refreshing crispness that signals the impending cooler days. The maximum temperature can still reach a pleasant 29°C (84°F), reminding us of the lingering warmth of summer. This shift marks a clear departure from the warmer, sunnier months of July and August, making September an ideal time for outdoor activities amidst the stunning fall foliage. Overall, it's a month that captivates with its gradual cooling, inviting residents and visitors alike to embrace the beauty of the changing seasons.
September in Bielsko-Biała sees a substantial precipitation average of 123 mm (4.9 in), matching the rainfall of July and indicating a continuation of the wetter summer months. With 14 days of precipitation, this month strikes a balance between dampness and the occasional sunny respite, typical for the transitional period leading into autumn. The rainfall is a slight dip from August's peak of 137 mm, yet it still showcases the region's persistent moisture. This trend seems to echo the broader pattern of increased precipitation during the warmer months, setting the stage for the cooler, drier conditions of the late fall. As the leaves begin to turn, the steady rainfall contributes to the lush landscapes that characterize this vibrant season.
As summer fades into autumn in Bielsko-Biała, Poland, September experiences a slight uptick in humidity, averaging around 67%. This marks a subtle increase from the 64% recorded in August, as the region transitions from the drier, warmer months into the cooler season. Overall, humidity levels tend to recede from the high peaks of winter and spring, which see figures soaring near 90%. However, September stands out as a bridge between the depths of summer's relative dryness and the return of more humid conditions in the subsequent months of October and November, where levels jump back to the 80s. This trend underscores the dynamic climate of Bielsko-Biała, where humidity ebbs and flows, reflecting the changing seasons.
As September rolls into Bielsko-Biala, the UV Index maintains a high rating of 6, similar to the previous months of April and May, yet slightly lower than the peak summer indices. With a burn time of just 25 minutes, it's essential to stay vigilant about sun protection during outdoor activities, as overexposure can lead to skin damage. This trend indicates a gradual transition from the intense summer UV levels, yet still demands attention to skin safety. As autumn approaches, the UV Index will continue to decline, providing a more moderate exposure risk in the coming months. For more detailed information, check out the Bielsko-Biala UV Index.
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In September, Bielsko-Biala enjoys a delightful transition towards autumn, basking in approximately 308 hours of sunshine. This marks a slight dip from the sun-drenched days of July and June, where peaks of 423 and 410 hours respectively brought vibrant energy to the region. However, compared to earlier months, September still radiates more light than January and February, showcasing a significant rise from their wintery lows of 136 and 193 hours. As the days grow shorter, this balance of luminosity offers a gentle farewell to summer, encouraging locals and visitors alike to relish the outdoors while the sun still shines brightly. The month serves as a beautiful reminder of the seasonal ebb and flow, with golden hues brightening the landscape as nature prepares for the cooler months ahead.
In Bielsko-Biała, the likelihood of sunny weather in September is a promising 39%, marking a slight uptick from the late summer months of August and July. This increase indicates that as summer transitions into fall, residents can expect a few more bright days before the onset of autumn's chill. Interestingly, September's sun probability surpasses several earlier months like April (33%) and May (31%), suggesting that while the days may be getting shorter, there remains a delightful chance to enjoy sunny skies. With October following closely at 46%, it seems the early fall not only bids farewell to summer but also embraces a pleasant climate that’s perfect for outdoor activities.
As summer fades into autumn in Bielsko-Biała, Poland, September ushers in a gentle decline in daylight, offering about 12 hours of bright sunlight. This marks a transition from the sun-drenched days of June, which boast a peak of 16 hours. The daylight begins to wane steadily from August's 14 hours, signaling nature's shift towards shorter, cozy evenings ahead. As we move into October, daylight diminishes further to 10 hours, reinforcing the trend of reduced sunlight as the year progresses. This gradual decrease not only influences the daily rhythm of life but also heralds the arrival of fall, where vibrant foliage and cooler temperatures create a picturesque environment.
As September rolls into Bielsko-Biała, the wind begins to whisper a gentle farewell to summer, with an average speed of 2.4 m/s (5 mph). This marks a slight decrease from the breezy days of August, where the wind carried a bit more vitality at 2.5 m/s (6 mph). Interestingly, the early months of the year showcase a more robust seasonal breeze, averaging 3.0 to 3.3 m/s (7 mph), creating a contrast to the more languid summer months. As autumn approaches, the overall tendency of the wind speed mirrors the changing seasons – a slow and soothing transition that beckons the colorful fall foliage, setting the stage for the brisk winds of October and beyond.
Weather in Bielsko-Biala varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bielsko-Biala, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 29°C (84°F) during the day, with an average of 14°C (57°F). The month experiences significant rainfall, totaling 123 mm (4.9 in) over approximately 14 days, and a moderate humidity level of 67%. In contrast, January sees much colder temperatures, plunging to a frigid minimum of -21°C (-6°F) and averaging around -1°C (30°F), with a maximum of only 10°C (50°F). Although January is drier, with 58 mm (2.3 in) of precipitation over 13 days, the humidity is notably higher at 90%. For a more detailed view of January weather, you can follow this link: Bielsko-Biala weather in January.
September and February present strikingly different weather characteristics. In September, temperatures range from a cool 2°C (35°F) at night to a warm average of 14°C (57°F), peaking at 29°C (84°F) during the day, accompanied by 123 mm (4.9 in) of precipitation over 14 days and a moderate humidity level of 67%. In contrast, February experiences much colder conditions, with temperatures dropping to a minimum of -18°C (-1°F) and an average of only 1°C (34°F), reaching a maximum of 18°C (64°F). Despite less overall precipitation at 76 mm (3.0 in) across 13 days, February's humidity is notably higher at 87%. For those interested in a deeper dive, more details can be found at Bielsko-Biala weather in February.
In comparing the weather conditions of September and March, notable differences emerge. September enjoys a relatively mild temperature range, with a minimum of 2°C (35°F), an average of 14°C (57°F), and a maximum of 29°C (84°F), accompanied by a moderate level of precipitation at 123 mm (4.9 in) over 14 days and humidity at 67%. In contrast, March experiences much colder conditions, with temperatures dipping to a minimum of -23°C (-9°F) and only slightly warming to an average of 3°C (38°F) and a maximum of 20°C (68°F). While March has lower precipitation, at 63 mm (2.5 in) also over 14 days, the humidity is notably higher at 83%. For those interested in more detailed information, you can visit Bielsko-Biala weather in March.
In comparing the weather between September and April, September tends to be warmer overall, with average temperatures reaching 14°C (57°F) compared to April's 8°C (47°F). The maximum temperature in September can rise up to 29°C (84°F), whereas April has a peak of 27°C (80°F). Precipitation is more frequent in September with 123 mm (4.9 in) over 14 days, compared to April's 75 mm (2.9 in) over 12 days. Additionally, humidity is slightly lower in September at 67%, while April experiences a higher humidity level of 76%. For more details on April weather, you can visit Bielsko-Biala weather in April.
In comparing the weather of September and May, both months experience a maximum temperature that reaches up to 29°C (84°F), but September offers a wider range of temperatures, with averages ranging from a cooler minimum of 2°C (35°F) to an average of 14°C (57°F). In contrast, May has a slightly lower minimum temperature of -2°C (29°F) and an average close to September's at 12°C (55°F). Rainfall is also notable in both months, with September receiving 123 mm (4.9 in) over about 14 days, while May sees a bit more precipitation at 132 mm (5.2 in) across 19 days, resulting in slightly higher humidity levels in May at 70% compared to September's 67%. To explore more details about May weather, you can visit Bielsko-Biala weather in May.
In comparing the weather of September and June, we see notable differences in temperature and precipitation patterns. September features a broader temperature range with a minimum of 2°C (35°F) and a maximum of 29°C (84°F), leading to an average of 14°C (57°F). In contrast, June enjoys milder temperatures, starting at a minimum of 5°C (40°F) and peaking at 31°C (88°F), with an average of 18°C (64°F). Precipitation is slightly higher in September, with 123 mm (4.9 in) over 14 days, compared to June's 100 mm (3.9 in) spread across 15 days. The humidity levels are also slightly elevated in June at 71%, compared to 67% in September. For a more detailed look at the June weather, visit Bielsko-Biala weather in June.
In comparing the weather of September and July, September tends to offer cooler temperatures, with a minimum of 2°C (35°F) and an average of 14°C (57°F), while July features warmer conditions with a minimum of 7°C (44°F) and an average of 18°C (65°F). While both months experience the same amount of precipitation at 123 mm (4.9 in), July sees slightly more rainy days, averaging 17 compared to September's 14. Humidity levels remain consistent at 67% for both months. For a closer look at July weather specifics, you can visit Bielsko-Biala weather in July.
In comparing the weather between September and August, September generally presents cooler temperatures, with a minimum of 2°C (35°F) and an average of 14°C (57°F), dropping from August's minimum of 7°C (44°F) and average of 19°C (66°F). Maximum temperatures also decline, peaking at 29°C (84°F) in September compared to August's warmer 33°C (91°F). While September sees a slightly lower total precipitation of 123 mm (4.9 in) over 14 days versus August's 137 mm (5.4 in) over 15 days, the humidity remains fairly consistent, with September averaging 67% compared to August's 64%. For more detailed insights, check out Bielsko-Biala weather in August.
September weather is generally milder, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 29°C (84°F) and an average of 14°C (57°F). During this month, precipitation is relatively high at 123 mm (4.9 in) over 14 days, and the humidity sits at 67%. In contrast, October brings cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 25°C (76°F), averaging around 10°C (50°F). The month sees slightly less rain at 102 mm (4.0 in) across 12 days but experiences a higher humidity level at 83%. For more detailed information, you can check Bielsko-Biala weather in October.
September weather in Bielsko-Biala shows a significant variation in temperatures, ranging from a chilly minimum of 2°C (35°F) to a warm average of 14°C (57°F) and reaching a maximum of 29°C (84°F). With an average precipitation of 123 mm (4.9 inches) over 14 days, the month retains a moderate humidity level of 67%. In contrast, November brings much cooler temperatures with a minimum of -9°C (16°F) and a lower average of 5°C (42°F), only peaking at 19°C (66°F). Precipitation decreases to 56 mm (2.2 inches) over 11 days, but the humidity levels rise significantly to 90%. The notable drop in temperature and increase in humidity makes November feel much colder and damp compared to the warmer, albeit wetter, September. For more details, visit Bielsko-Biala weather in November.
In September, the weather is characterized by a warm average temperature of 14°C (57°F), with highs reaching up to 29°C (84°F), making it a pleasant time of year. Conversely, December brings much colder conditions, with average temperatures dropping to around 1°C (34°F) and lows plunging to -13°C (9°F). While September sees significant rainfall with 123 mm (4.9 in) over 14 days, December experiences slightly less precipitation at 89 mm (3.5 in) across 15 days, but with higher humidity at 91%. For more detailed information, you can check Bielsko-Biala weather in December.
As September arrives in Bielsko-Biała, the transition from summer to autumn becomes evident, bringing a delightful variety of weather. The month often showcases a mix of warm days with temperatures reaching up to 29°C (84°F), while cooler nights introduce refreshing air with lows around 2°C (35°F). Compared to the hot summer months, September marks a noticeable decrease in maximum temperatures, although the average remains a comfortable 14°C (57°F). Additionally, this month experiences a higher frequency of rain, with about 14 days of precipitation leading to a total of 123 mm (4.9 in), making it one of the wetter months of the year. With 67% humidity, the air feels more dynamic, reflecting the changing season. For more detailed insights, check out the full report at Bielsko-Biala Climate.