September Weather in Oswiecim, Poland

Last updated: August 27, 2025

In September, Oswiecim, Poland, experiences a dynamic climate marked by temperatures ranging from a mild 2°C (36°F) to a peak of 31°C (88°F). The average temperature settles around 15°C (59°F), providing a comfortable backdrop for outdoor activities. However, expect frequent rainfall, with 109 mm (4.3 in) of precipitation over 12 days, contributing to a humidity level of 67%. This blend of warmth and wetness makes September an intriguing month in Oswiecim, offering a unique atmosphere that beckons exploration amidst the changing seasons.

September Temperature in Oswiecim

In September, Oswiecim transitions into the early autumn months, showcasing a notable shift in temperatures. The minimum drops to a brisk 2°C (36°F), while the average settles at a comfortable 15°C (59°F), offering a pleasant respite from the summer heat. With a maximum reaching up to 31°C (88°F), the warmth still lingers, making it an ideal time for outdoor exploration. Compared to the sweltering peak of summer, September's cooler evenings invite cozy nights, and the vibrant foliage begins to paint the landscape in rich autumn hues. This month serves as a gentle reminder of the changing seasons, striking a harmonious balance between lingering warmth and the crispness that autumn brings.

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

The chart illustrates September temperature patterns in Oswiecim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oswiecim, 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).
JanFebMarAprMayJunJulAugSepOctNovDec313539485666676759514235
Data source: Temperature data for Oswiecim 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 Oswiecim

In September, Oswiecim experiences a significant influx of moisture, with precipitation totaling 109 mm (4.3 in) across approximately 12 days. This marks a continuation of the summer trend, where rainfall peaks in August at 113 mm (4.4 in), suggesting a seasonal transition as autumn sets in. The consistency in precipitation days—aligning closely with the preceding months—indicates that the area remains relatively damp as it heads into fall. Overall, September's rainfall is slightly elevated compared to earlier months, reflecting a gradual increase in moisture that sets the stage for the wetter months ahead.

September Precipitation Trends in Oswiecim

The chart displays monthly precipitation patterns in Oswiecim, 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 Oswiecim, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec466451641078496113109845170
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Oswiecim

In Oswiecim, Poland, September's humidity stands at 67%, a slight increase from the summer lows of 64% in August. This dip in humidity during the warmer months shows a gradual trend towards a more humid climate as the year progresses, with humidity levels climbing sharply in October to 83%. The transition from summer to autumn reveals a shift in atmospheric moisture, reflecting the natural rhythm of the seasons. Following September, residents can expect a notable return to the much higher humidity levels characteristic of late autumn and winter, as both November and December bring figures reaching 90% and 91%, respectively.

September Average Humidity in Oswiecim

This chart illustrates the average monthly humidity levels in Oswiecim, 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 Oswiecim is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%83%76%70%71%67%64%67%83%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Oswiecim

In September, Oswiecim experiences a UV Index of 6, indicating a high exposure category and an estimated burn time of 25 minutes. This marks a slight decrease from the peak summer months of July and August, which saw a UV Index of 8, but still calls for sun protection, especially during midday hours. As we transition into fall, the UV levels begin to taper off; however, September's readings still warrant caution for outdoor activities. It’s crucial to stay informed about local UV conditions, especially as they shift throughout the seasons—discover more about what to expect by visiting Oswiecim UV Index.

Maximum UV Index Levels in Oswiecim for September

The chart shows the monthly maximum UV Index (UVI) for Oswiecim 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 Oswiecim typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876421
Data source: Oswiecim 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 Oswiecim

As summer gives way to autumn in Oswiecim, Poland, September emerges as a month where the sun still shines brightly, contributing a noteworthy 301 hours of sunshine. This marks a dip from the peak of 417 hours recorded in July but reflects a robust continuation of the sunny trends experienced through the summer months. The gradual decline in sunlight indicates a transition into the cooler months, with October set to further reduce sunshine to 256 hours. Notably, this pattern underscores a typical seasonal rhythm, where vibrant spring and summer days gradually yield to the softer light of fall, inviting both locals and visitors to embrace the changing landscapes while still enjoying the lingering warmth of early autumn.

Monthly Sunshine Duration in Oswiecim: September Highlighted

The September sunshine duration represents the total number of hours Oswiecim 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.
JanFebMarAprMayJunJulAugSepOctNovDec132h186h280h319h359h398h417h380h301h256h202h136h
Data source: Oswiecim September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oswiecim During September

As September arrives in Oswiecim, Poland, the likelihood of sunny weather climbs to 40%, offering a pleasant transition from summer to autumn. This is a notable increase compared to the earlier summer months, where sunshine probabilities fluctuated around the 34-36% mark in both July and August. While September’s sunshine potential is just shy of the peak summer months, it emerges as a more favorable option than the preceding spring months, which hover around 35-37%. As the days gradually shorten and temperatures begin to dip, those planning outdoor activities can look forward to a fair chance of enjoying sunny spells before the onset of chillier October.

Percentage of Sunny Days in September in Oswiecim

The chart illustrates the percentage of sunny days in Oswiecim 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 Oswiecim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%29%37%35%34%51%36%34%40%47%29%16%
Data source: Oswiecim September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oswiecim in September

As summer transitions to autumn, Oswiecim experiences a gradual decline in daylight duration during September, offering around 12 hours of sunlight. This marks a noticeable shift from the 16 hours of daylight enjoyed in June and 15 hours in July, indicative of the waning days of summer. Following this trend, daylight hours will continue to lessen as October approaches, dropping to 10 hours. Nature subtly shifts during this month as the vibrant hues of summer give way to the softer tones of early fall, making September a beautiful yet reflective time in Oswiecim. The progressive decrease in daylight not only highlights the changing seasons, but also invites residents and visitors alike to bask in the golden hours of this transitional month.

Average Daylight Hours in Oswiecim for September

The chart illustrates the variation in daylight duration in Oswiecim throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 35m10h 4m11h 55m13h 48m15h 26m16h 17m15h 50m14h 22m12h 33m10h 41m9h8h 7m
Data source: Oswiecim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Oswiecim

As September arrives in Oswiecim, the breezes begin to shift, presenting a subtle increase in wind speed to 2.8 m/s (6 mph). This marks a gentle revival from the more tranquil summer months, where July and August settled into their calmest winds at 2.3 m/s (5 mph). The arrival of fall heralds a transition, as September's winds begin to echo the milder yet steadier patterns seen in the spring. With the average wind speeds slowly reclaiming a foothold, observers can sense a refreshing, invigorating feel in the air, hinting at the briskness that will soon characterize the autumn months ahead.

Average September Wind Speed in Oswiecim

The chart displays monthly wind speed patterns in Oswiecim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.53.13.33.42.32.32.62.8 m/s3.23.23.4
Data source: Oswiecim September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Oswiecim Compares to Other Months

Weather in Oswiecim varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Oswiecim, 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 minimum of 2°C (36°F) to a warm 31°C (88°F), with an average of 15°C (59°F). This month also experiences notable precipitation, totaling 109 mm (4.3 in) over about 12 days, and a humidity level of 67%. In contrast, January is characterized by significantly colder temperatures, with a minimum of -22°C (-7°F) and a maximum of just 11°C (52°F), averaging around -1°C (31°F). The precipitation in January is considerably lower at 46 mm (1.8 in) spread over 11 days, accompanied by higher humidity levels of 90%. For more detailed insights on the January weather, you can visit Oswiecim weather in January.

September and February exhibit significantly contrasting weather patterns. In September, temperatures range from a mild 2°C (36°F) to a warm 31°C (88°F), with an average of 15°C (59°F) and notably higher humidity at 67%. This month experiences about 109 mm (4.3 in) of precipitation over approximately 12 days, signaling the transition to autumn. In contrast, February brings much colder temperatures, with a minimum of -14°C (7°F) and a maximum of 19°C (66°F), averaging only 1°C (35°F). Despite having lower total precipitation of 64 mm (2.5 in) across 13 days, February's higher humidity at 87% contributes to a damp chill that permeates the air. For a detailed look at the weather specifics during February, you can check Oswiecim weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a chilly 2°C (36°F) at night to a warm 31°C (88°F) during the day, with an average of 15°C (59°F). The month experiences 109 mm (4.3 in) of precipitation over approximately 12 days, and humidity levels hover around 67%. In stark contrast, March is much colder, with nighttime lows plummeting to -18°C (-1°F) and daytime highs reaching a maximum of 21°C (69°F), averaging at just 4°C (40°F). It sees significantly less rainfall at 51 mm (2.0 in) spread over 13 days, though humidity is higher at 83%. For a more detailed look at the climate specifics, refer to Oswiecim weather in March.

When comparing the weather of September and April, several distinctions emerge. September tends to be warmer, with average temperatures around 15°C (59°F) and highs reaching up to 31°C (88°F), while April's average temperature is lower at about 9°C (48°F), with a maximum of only 28°C (82°F). Precipitation levels are also notable, as September sees 109 mm (4.3 in) spread over 12 days, whereas April has a total of 64 mm (2.5 in) across 10 days, indicating a slightly drier month. Humidity in April is higher at 76% compared to September's 67%, contributing to a more brisk feel during the earlier spring month. For a more detailed look at April's weather, you can check Oswiecim weather in April.

In comparing the weather of September to that of May, September typically offers warmer temperatures, with a minimum of 2°C (36°F) and an average of 15°C (59°F), peaking at a maximum of 31°C (88°F). Conversely, May starts off cooler, with temperatures ranging from a minimum of -1°C (30°F) to an average of 13°C (56°F) and a maximum of 29°C (85°F). Both months experience similar levels of precipitation, with September recording 109 mm (4.3 in) over 12 days, while May sees slightly less at 107 mm (4.2 in) over 16 days. Humidity is also comparable, with September at 67% and May slightly higher at 70%. For more detailed information, you can check Oswiecim weather in May.

September and June present distinct weather patterns, reflecting the transition from summer to autumn. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 31°C (88°F), with an average of 15°C (59°F), showcasing a wider temperature variation compared to June, which has a minimum of 6°C (43°F) and a maximum of 33°C (91°F), averaging at 19°C (66°F). Both months experience 12 days of precipitation, but September sees a higher total rainfall of 109 mm (4.3 in) compared to June's 84 mm (3.3 in). Additionally, September's humidity level is slightly lower at 67% compared to June’s 71%. For a detailed look at the weather conditions during June, visit Oswiecim weather in June.

When comparing the weather in September and July, several notable differences emerge. September features a broader temperature range, with minimums dropping to 2°C (36°F) and maximums reaching 31°C (88°F), while July maintains higher temperatures, with a minimum of 8°C (47°F) and a maximum of 35°C (95°F). Both months share the same humidity level of 67%, though September experiences slightly more precipitation at 109 mm (4.3 in) over 12 days, compared to July's 96 mm (3.8 in) over 14 days. For more detailed insights on July weather, you can refer to Oswiecim weather in July.

In comparing the weather patterns of August and September, August typically showcases warmer temperatures, with a minimum of 7°C and an average high reaching up to 34°C (94°F), while September sees cooler conditions, featuring a minimum of 2°C and a maximum of 31°C (88°F). Precipitation levels are quite similar in both months, with August recording 113 mm over 12 days and September slightly lower at 109 mm, also over 12 days. Humidity levels are comparable, with September at 67% and August at 64%. For a more detailed analysis of the weather in August, you can view the link: Oswiecim weather in August.

In September, the weather features a significant range in temperatures, with minimums around 2°C (36°F) and maximums reaching up to 31°C (88°F), contributing to an average of 15°C (59°F). In contrast, October sees a drop in the average temperature to 10°C (51°F), with minimums falling to -2°C (29°F) and maximums around 25°C (77°F). While both months experience precipitation on approximately 12 days, September records a higher total of 109 mm (4.3 in) compared to 84 mm (3.3 in) in October. Additionally, humidity levels increase from 67% in September to 83% in October, adding to the chill in the air. For more detailed information, check out Oswiecim weather in October.

September and November present distinctly different weather patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 31°C (88°F), with an average of 15°C (59°F). This month sees a higher average precipitation of 109 mm (4.3 in) spread over 12 days, accompanied by a humidity level of 67%. In contrast, November experiences a significant drop in temperatures, with minimums plunging to -8°C (18°F) and an average of just 6°C (42°F). Despite having lower precipitation at 51 mm (2.0 in) across 11 days, November's humidity increases to 90%. For more detailed insights on the weather in November, you can visit Oswiecim weather in November.

September and December present contrasting weather patterns. In September, temperatures range from a mild 15°C (59°F) on average, soaring up to a warm 31°C (88°F) at times, while humidity sits at a comfortable 67%. However, this month also sees 109 mm (4.3 in) of precipitation over about 12 days. In stark contrast, December brings a chillier climate, with average temperatures dropping to around 1°C (35°F), and the lows reaching as frigid as -11°C (13°F). Although December has lower total precipitation at 70 mm (2.7 in), it spreads across 15 days, accompanied by a higher humidity level of 91%. For more detailed information on the December weather in Oswiecim, visit Oswiecim weather in December.

Compare Oswiecim's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Oswiecim

As September unfolds in Oswiecim, the weather presents a fascinating transition from the warmth of summer to the crispness of autumn. With maximum temperatures still reaching a pleasant 31°C (88°F), the month retains a hint of summer's heat, though the average drops to a milder 15°C (59°F). This shift brings cooler nights, where temperatures can dip to as low as 2°C (36°F). September is characterized by increased precipitation, with 12 days of rain contributing to a total of 109 mm (4.3 in), making it one of the wetter months in the year and creating a lush, green landscape. The humidity hovers around 67%, striking a balance that keeps the air feeling fresh. For more insights on the local climate, explore Oswiecim Climate.