September Weather in Boleslawiec, Poland

Last updated: August 27, 2025

September in Boleslawiec, Poland, offers a dynamic weather experience, with temperatures ranging from a chilly 2°C (35°F) at night to a sizzling 30°C (87°F) during the day. The average temperature settles at a comfortable 15°C (59°F), perfect for those seeking mild autumn vibes. However, expect occasional rain showers, as the month collects about 72 mm (2.8 in) of precipitation over 11 days, contributing to a humidity level of 72%. This blend of warmth and moisture creates an inviting atmosphere for exploring the beautiful landscapes of Boleslawiec.

September Temperature in Boleslawiec

In September, Boleslawiec, Poland transitions into the refreshing embrace of early autumn. With minimum temperatures hovering around 2°C (35°F) and averages reaching 15°C (59°F), the mild climate invites outdoor exploration. The maximum temperature can still peak at a pleasant 30°C (87°F), reminiscent of summer's warmth, yet the cool evenings signal the approaching chill of fall. This shift in weather patterns reflects a gradual decline from the sweltering heat of August, providing a perfect balance for enjoying the town’s vibrant scenery and local festivities. Overall, September in Boleslawiec showcases a delightful blend of warmth and crispness, making it an ideal time for visitors to experience the charm of this Polish gem.

September Weather in Boleslawiec: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Boleslawiec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boleslawiec, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec333540485666676859514236
Data source: Temperature data for Boleslawiec generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Boleslawiec

In September, Boleslawiec experiences a notable shift in precipitation patterns, receiving 72 mm (2.8 in) of rain over 11 days. This amount aligns closely with the previous month, August, which also saw 75 mm (3.0 in) but with fewer rainy days. As summer transitions into autumn, the rainfall generally increases, preparing the region for the wetter months ahead. This steady level of precipitation in September hints at a more temperate climate as the year progresses, leading into October, which typically brings even more rain at 76 mm (3.0 in). This gradual rise in precipitation can be seen as part of an annual cycle that enhances Boleslawiec's lush landscapes, setting the stage for the vibrant colors of fall while maintaining favorable temperatures.

September Precipitation Trends in Boleslawiec

The chart displays monthly precipitation patterns in Boleslawiec, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Boleslawiec, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec575555427563727572764065
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Boleslawiec

In Boleslawiec, Poland, September marks a transition in humidity levels as the summer warmth gradually gives way to the crispness of autumn. With an average humidity of 72%, September showcases a slight increase from the drier months of July and August, which experienced lower readings of 61% and 65%, respectively. This uptick hints at the approaching changes in weather patterns, as humidity surges again in October, rising to 80%. Overall, September serves as a reminder of nature's shifting rhythms, bridging the pleasantly warm summer with the moister, cooler months ahead.

September Average Humidity in Boleslawiec

This chart illustrates the average monthly humidity levels in Boleslawiec, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Boleslawiec is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%84%78%63%63%61%65%72%80%87%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Boleslawiec

As summer fades into autumn in Boleslawiec, Poland, the UV Index begins to decline, yet September still boasts a high rating of 6. This marks a transition from the sweltering peaks of summer, where July and June reached an intense 8 (very high), down to a more moderate yet significant level. With a burn time of just 25 minutes, sun seekers need to remain vigilant. The trend indicates a steady decrease in UV radiation as the year progresses, but September still calls for careful protection under the sun. For more information, check out the detailed UV index data for the region at Boleslawiec UV Index.

Maximum UV Index Levels in Boleslawiec for September

The chart shows the monthly maximum UV Index (UVI) for Boleslawiec in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Boleslawiec typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876321
Data source: Boleslawiec September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Boleslawiec

As September rolls into Boleslawiec, the beautiful Polish town enjoys a delightful 311 hours of sunshine, marking a graceful transition from the vibrant summer months. Following the peak of July's 423 hours, the sunlight begins to mellow, yet September still basks in a generous glow compared to the earlier winter months. This significant drop from August's 381 hours hints at the seasonal shift, but with plenty of warm days left, it's a perfect time for outdoor exploration. As autumn approaches, the golden hues of falling leaves blend with the lingering warmth of summer, offering a unique charm that makes September a special month to experience the beauty of Boleslawiec.

Monthly Sunshine Duration in Boleslawiec: September Highlighted

The September sunshine duration represents the total number of hours Boleslawiec experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec117h199h274h333h385h409h423h381h311h255h184h142h
Data source: Boleslawiec September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Boleslawiec During September

In Boleslawiec, Poland, the likelihood of basking in sunshine fluctuates throughout the year, with September offering a promising 34% chance of sunny weather. As summer fades, this month's outlook is slightly brighter than the preceding months, hinting at a moderate transition towards the autumn season. While the sun graces the region more often in earlier months like July and June, September remains a favorable time for outdoor activities, providing a pleasant mix of warmth and daylight before the chill of fall sets in. Overall, the late summer's fading sunshine sets the stage for a delightful early autumn experience.

Percentage of Sunny Days in September in Boleslawiec

The chart illustrates the percentage of sunny days in Boleslawiec throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Boleslawiec experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%27%39%29%32%38%32%29%34%39%22%17%
Data source: Boleslawiec September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Boleslawiec in September

As summer transitions into autumn, September in Boleslawiec, Poland, brings a gentle decline in daylight, with an average of 12 hours illuminating the day. This marks a noticeable shift from the vibrant, sun-soaked days of June and July, each basking in 16 hours of sunlight. Following the peak of summer, August sees a gradual decrease to 14 hours, paving the way for September's softer glow. The daylight hours gradually diminish, setting the stage for the shorter days of October and November, which offer only 10 and 8 hours respectively. This natural ebb and flow of daylight underscores the steady transition into autumn, inviting residents and visitors alike to embrace the seasonal change.

Average Daylight Hours in Boleslawiec for September

The chart illustrates the variation in daylight duration in Boleslawiec throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 26m9h 59m11h 54m13h 52m15h 35m16h 29m16h14h 28m12h 34m10h 37m8h 52m7h 56m
Data source: Boleslawiec daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Boleslawiec

As September rolls in Boleslawiec, Poland, the winds start to shift gently, averaging 2.7 m/s (6 mph). While this marks a decline from the summer's breezier months, it continues to maintain a light and refreshing presence. The trend through the year shows a subtle crescendo, with wind speeds gradually increasing from the stillness of June and July, which saw their lowest averages at 2.4 m/s (5 mph) and 2.6 m/s (6 mph), respectively. September's winds, though lighter, offer a gentle farewell to summer, paving the way for the more robust gusts to come in October, which ramps up to 3.6 m/s (8 mph). Thus, the September breeze captures the essence of transition, cradling the warmth of the outgoing season while hinting at the cooler days ahead.

Average September Wind Speed in Boleslawiec

The chart displays monthly wind speed patterns in Boleslawiec, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.43.43.43.53.92.42.62.92.7 m/s3.63.53.6
Data source: Boleslawiec September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Boleslawiec Compares to Other Months

Weather in Boleslawiec varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Boleslawiec, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present stark contrasts in weather. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 30°C (87°F), with an average temperature of 15°C (59°F). The month sees 72 mm (2.8 in) of precipitation over 11 days, accompanied by a humidity level of 72%. In sharp contrast, January experiences much colder conditions, with temperatures dipping as low as -14°C (8°F), averaging just 1°C (34°F), and peaking at 13°C (56°F). Precipitation decreases slightly to 57 mm (2.2 in) over 13 days, and humidity rises to a higher level of 89%. For more details, you can check Boleslawiec weather in January.

September and February exhibit strikingly different weather patterns. In September, temperatures range from a mild 15°C (59°F) on average, with highs reaching up to 30°C (87°F), creating a warm and inviting atmosphere. In contrast, February is characterized by much colder conditions, where average temperatures hover around 2°C (36°F) and can drop as low as -17°C (2°F). Although February sees slightly less precipitation (55 mm over 10 days) compared to September’s 72 mm over 11 days, it carries a higher humidity level of 87%. This stark difference highlights the transition from the warmth of early autumn to the chill of mid-winter in Boleslawiec. For more details, check out Boleslawiec weather in February.

September and March exhibit striking contrasts in weather. September boasts a range of temperatures, with a minimum of 2°C (35°F) and highs reaching up to 30°C (87°F), offering an average of 15°C (59°F). The month experiences a moderate level of precipitation at 72 mm (2.8 in) over 11 days, alongside a humidity of 72%. In contrast, March brings much colder temperatures, starting with a minimum of -13°C (9°F) and averaging 5°C (40°F), peaking at a maximum of 21°C (70°F). With a total precipitation of 55 mm (2.2 in) over 12 days and higher humidity at 84%, March presents a different and chillier climate altogether. For a detailed overview of weather patterns during this time, check out Boleslawiec weather in March.

When comparing the weather in September and April, notable differences emerge. September generally boasts warmer temperatures, with averages around 15°C (59°F) and maximums reaching up to 30°C (87°F), in contrast to April's cooler average of 9°C (49°F) and a maximum of 26°C (79°F). Additionally, September experiences slightly more rain, with 72 mm (2.8 in) over 11 days, compared to April's 42 mm (1.6 in) of precipitation across 10 days. Humidity levels are high in both months, but September is slightly less humid at 72% compared to April's 78%. For more details on April weather, you can refer to Boleslawiec weather in April.

September and May present contrasting weather conditions, despite sharing similar maximum temperatures of 30°C (87°F). In September, temperatures range from a minimum of 2°C (35°F) to an average of 15°C (59°F), while May starts off colder with a minimum of -1°C (31°F) and an average of 13°C (56°F). Rainfall is relatively similar, with September seeing 72 mm of precipitation over 11 days and May slightly higher at 75 mm over 13 days. Additionally, September tends to be more humid, with levels at 72%, compared to May’s 63%. For more details, you can check out Boleslawiec weather in May.

In comparing the weather conditions of September and June, a few notable differences emerge. September typically sees a broader temperature range with minimums around 2°C (35°F) and maximums reaching up to 30°C (87°F), averaging at 15°C (59°F). In contrast, June has slightly higher minimum temperatures of 3°C (38°F), with maximums peaking at 35°C (96°F) and an average of 19°C (67°F). Both months experience similar levels of precipitation, with September receiving 72 mm (2.8 in) and June slightly less at 63 mm (2.5 in), though both span 11 days of rain. Additionally, September tends to have higher humidity at 72%, compared to June's 63%. For a more detailed look into June weather specifics, check out Boleslawiec weather in June.

In comparing the weather of September and July, we observe distinct differences in temperature and humidity. September experiences a broader temperature range, with minimums dipping to 2°C (35°F) and maximums reaching 30°C (87°F), averaging around 15°C (59°F). Contrarily, July is generally warmer, with minimum temperatures around 7°C (45°F) and maximums peaking at 35°C (95°F) while averaging 19°C (67°F). Both months receive similar rainfall, approximately 72 mm (2.8 in), but July has slightly more rainy days at 13, compared to September's 11 days. Additionally, July tends to be less humid, with humidity levels at 61%, compared to September's higher humidity of 72%. For more specifics, you can explore Boleslawiec weather in July.

In comparing the weather between September and August, September tends to be cooler with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 30°C (87°F), while August boasts warmer averages of 6°C (44°F) to 34°C (94°F). Additionally, September has higher humidity levels at 72%, compared to August's 65%. Precipitation is relatively similar, with September receiving 72 mm (2.8 in) over 11 days and August a slightly higher 75 mm (3.0 in) over just 10 days. For more detailed insights into the weather during August, you can refer to Boleslawiec weather in August.

September and October present a notable shift in weather conditions. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F), allowing for relatively warm days. Precipitation is somewhat moderate at 72 mm (2.8 in) over 11 days, and humidity sits at a comfortable 72%. In contrast, October brings cooler temperatures, with minimums dipping to -2°C (28°F) and a maximum of 24°C (75°F), resulting in an average of 11°C (52°F). The month sees slightly more precipitation at 76 mm (3.0 in) over 13 days and an increase in humidity to 80%. For a more detailed look at weather conditions during October, you can check Boleslawiec weather in October.

In September, the weather is typically warm, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 30°C (87°F). The average temperature hovers around a pleasant 15°C (59°F), accompanied by 72 mm (2.8 in) of rainfall spread over 11 days and a humidity level of 72%. In contrast, November brings a notable shift as temperatures drop, with a minimum of -6°C (22°F), an average of 6°C (43°F), and a maximum of 18°C (65°F). Precipitation decreases to 40 mm (1.6 in) over 9 days, while humidity rises to 87%. For a detailed look at November weather specifics, check out Boleslawiec weather in November.

September and December present contrasting weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 30°C (87°F), with a pleasant average of 15°C (59°F). The month experiences around 72 mm (2.8 in) of precipitation over 11 days, accompanied by moderate humidity at 72%. In stark contrast, December brings much colder conditions, with temperatures dipping to a minimum of -13°C (10°F) and peaking at 12°C (55°F), resulting in an average temperature of just 2°C (37°F). While precipitation is slightly lower at 65 mm (2.6 in), it occurs over 15 days, and the humidity increases to 91%. For more detailed information, you can check out the Boleslawiec weather in December.

Compare Boleslawiec's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Boleslawiec

As September unfolds in Boleslawiec, it marks a distinct transition from the warm summer days to the crispness of autumn. With maximum temperatures reaching a comfortable 30°C, the month begins with a taste of lingering warmth, though the average dips to a cooler 15°C. The likelihood of rain increases, as evidenced by 11 days of precipitation totaling 72 mm, resulting in a noticeable uptick in humidity at 72%. This blend of warm days and cooler nights, coupled with sporadic showers, illustrates a unique charm that sets September apart from the sun-drenched months of summer. For a more comprehensive insight into Boleslawiec's evolving weather patterns throughout the year, explore Boleslawiec Climate.