September Weather in Debrecen, Hungary

Last updated: August 21, 2025

September in Debrecen, Hungary offers a delightful transition from the warmth of summer to the coolness of autumn. With maximum temperatures reaching a sweltering 35°C (95°F) and an average of 18°C (65°F), the month still retains a touch of summer’s charm. However, cooler days can drop to a brisk 4°C (39°F). Alongside these temperature fluctuations, the city anticipates about 44 mm (1.7 in) of rainfall spread across 7 days, contributing to an overall humidity level of 68%. This mixture of warmth and moisture creates a vibrant, picturesque landscape, perfect for exploration and enjoying the changing seasons.

September Temperature in Debrecen

In Debrecen, Hungary, September marks a transition into the mild embrace of autumn, showcasing a compelling range of temperatures. With minimums around 4°C (39°F) and averages settling at a comfortable 18°C (65°F), the month offers a respite from the scorching summer heat, which peaks at an impressive 35°C (95°F). This gradual cooling trend from the sweltering highs of August invites residents and travelers alike to enjoy outdoor activities in pleasantly warm days and crisp evenings. As the month unfolds, the pleasant warmth serves as a gentle reminder of summer's lingering charm while hinting at the cooler days that lie ahead.

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

The chart illustrates September temperature patterns in Debrecen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Debrecen, 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).
JanFebMarAprMayJunJulAugSepOctNovDec313844546372737565554537
Data source: Temperature data for Debrecen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Debrecen

In September, Debrecen experiences a moderate precipitation amount of 44 mm (1.7 in), delivered over approximately 7 days. This marks a notable shift as the summer's heavier rains begin to taper off, contributing to the decreasing trend observed since June, which saw its peak at 86 mm (3.4 in) over 15 days. As autumn sets in, September's rainfall is lighter than both the summer months and the months that follow, such as October, which brings 51 mm (2.0 in). This gradual decline in precipitation not only reflects the transition from the warm summer months but also sets the stage for the cooler and often rainier conditions ahead as the year progresses.

September Precipitation Trends in Debrecen

The chart displays monthly precipitation patterns in Debrecen, 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 Debrecen, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec394938467886665844515267
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Debrecen

September in Debrecen, Hungary, marks a subtle shift in humidity levels, dropping to 68% as summer wanes and autumn approaches. This decline follows a steady decrease from the peak of 89% in January, showcasing a gradual transition from the high humidity of winter and the sweltering warmth of summer, which saw levels as low as 62% in August. As the seasons change, you can feel the air becoming crisper and drier, yet it's still noticeably more humid than the upcoming months. While the autumn chill begins to set in, the humidity will soon rise again, peaking at 90% by November, making the September drop a brief but refreshing reprieve before winter's embrace.

September Average Humidity in Debrecen

This chart illustrates the average monthly humidity levels in Debrecen, 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 Debrecen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%83%75%72%72%71%62%68%84%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Debrecen

As September rolls into Debrecen, Hungary, the UV Index dips to 6, categorizing exposure as high. This is a shift from the intense summer months, where it peaked at 9 in June, but still requires caution. With a burn time of 25 minutes, sun-seekers should be mindful of their time outdoors, especially during peak hours. The gradual transition to autumn marks a notable change in UV exposure, moving from the very high levels experienced in July and August. This trend highlights the importance of adapting sun safety practices as the seasons change. For more details on UV levels throughout the year, visit Debrecen UV Index.

Maximum UV Index Levels in Debrecen for September

The chart shows the monthly maximum UV Index (UVI) for Debrecen 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 Debrecen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689886422
Data source: Debrecen 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 Debrecen

As summer fades, September in Debrecen, Hungary, greets you with a warm embrace of 335 hours of sunshine, providing a beautiful transition into autumn. This month follows a sun-soaked July and June, which boast the highest sunshine hours of the year, at 428 and 413 respectively, before gradually tapering off into the cooler months. While September's hours are fewer than the peak of summer, they still embody a vibrant atmosphere, contrasting with the dimming days of October and November, which see a significant decline to 278 and 205 hours. This gentle descent into autumn allows residents and visitors alike to savor the lingering warmth and golden hues of early fall, making September a splendid time to enjoy Debrecen's cultural richness under sunny skies.

Monthly Sunshine Duration in Debrecen: September Highlighted

The September sunshine duration represents the total number of hours Debrecen 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.
JanFebMarAprMayJunJulAugSepOctNovDec162h209h293h341h383h413h428h402h335h278h205h176h
Data source: Debrecen September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Debrecen During September

In September, Debrecen enjoys a favorable 49% chance of sunny weather, making it one of the more promising months for sunshine in the city. This marks a slight increase compared to the summer months of July and August, which see lower probabilities of sunshine at 45% and 44%, respectively. Interestingly, the trend shows that as the year progresses from the cooler months of January through April, the likelihood of sun gradually rises, peaking in June at 52%. Following that slight decline in late summer, September's weather hints at a pleasant balance between warmth and clear skies, which is further complemented by October's even higher likelihood of 55% sunshine. Overall, September stands out as an ideal month to enjoy outdoor activities before autumn fully sets in.

Percentage of Sunny Days in September in Debrecen

The chart illustrates the percentage of sunny days in Debrecen 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 Debrecen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%37%47%35%42%52%45%44%49%55%35%23%
Data source: Debrecen September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Debrecen in September

As September unfolds in Debrecen, Hungary, the city basks in an inviting 12 hours of daylight, marking a gentle transition from the long, sunlit days of summer to the shorter days of autumn. After reaching a peak in May through August with consistent 15 hours of daylight, the gradual decline begins, highlighting nature's shift. This month balances the lingering warmth of summer with the anticipation of cooler days ahead, as daylight wanes to a more moderate length. The trend reflects a comforting rhythm, with September providing a sweet spot of sunlight before the 10 hours of October loom. It's a time to savor the beauty of changing leaves and crisp air—the essence of early fall in Debrecen.

Average Daylight Hours in Debrecen for September

The chart illustrates the variation in daylight duration in Debrecen throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 55m10h 15m11h 55m13h 38m15h 7m15h 52m15h 28m14h 10m12h 31m10h 48m9h 17m8h 30m
Data source: Debrecen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Debrecen

As September rolls into Debrecen, Hungary, the average wind speed drops slightly to 2.3 m/s (5 mph), reflecting the calm before the autumn chill sets in. This gentle breeze is part of a broader trend observed over the summer months, where wind speeds gradually decreased from the moderate 3.1 m/s in May to the more subdued 2.4 m/s in July and August. While the air may feel still, this seasonal decline hints at the tranquil beauty of early fall, inviting residents and visitors alike to embrace the quieter moments of nature. As the city transitions into October, the winds remain steady, offering a serene backdrop for leisurely strolls through its scenic streets.

Average September Wind Speed in Debrecen

The chart displays monthly wind speed patterns in Debrecen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.02.53.12.93.12.72.42.42.3 m/s2.42.32.8
Data source: Debrecen September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Debrecen Compares to Other Months

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

September and January present starkly different weather experiences. In September, temperatures can range from a minimum of 4°C (39°F) to a maximum of 35°C (95°F), with an average of 18°C (65°F), making it a warm and often humid month with 68% humidity. The month's total precipitation is 44 mm (1.7 in), occurring over about 7 days. In contrast, January offers a much colder climate, where temperatures can drop to a chilling -15°C (4°F) at night, while peaking at only 12°C (55°F) during the day, averaging around 0°C (32°F). The humidity rises to 89% and the month records slightly less precipitation at 39 mm (1.5 in) over 8 days. For further details, check out Debrecen weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 4°C (39°F) at night to a warm 35°C (95°F) during the day, making it an ideal time for outdoor activities. With an average temperature of 18°C (65°F) and only 44 mm (1.7 in) of precipitation over about 7 days, September tends to be more pleasant and less humid with an average humidity of 68%. In contrast, February experiences much colder temperatures, with nighttime lows plunging to -10°C (14°F) and daytime highs only reaching 18°C (64°F). The average temperature sits at just 3°C (38°F), and February sees slightly more precipitation at 49 mm (1.9 in) across 10 days, accompanied by a higher humidity level of 87%. For a detailed look at February weather in Debrecen, you can check this link: Debrecen weather in February.

When comparing the weather in September and March, notable differences emerge in temperature and humidity. September boasts a wider temperature range, with a minimum of 4°C (39°F), an average of 18°C (65°F), and a maximum of 35°C (95°F). In contrast, March features much cooler temperatures, ranging from a minimum of -12°C (11°F) to a maximum of 24°C (75°F), with an average of 7°C (44°F). Although both months see approximately seven days of precipitation, September has slightly higher rainfall at 44 mm (1.7 in) compared to March's 38 mm (1.5 in). The humidity is notably higher in March at 83%, compared to 68% in September, creating a much crisper feel in early spring. For more specifics on March weather, you can visit Debrecen weather in March.

When comparing the weather in September and April, clear differences emerge. September typically experiences a wider temperature range, with minimums around 4°C (39°F) and maximums reaching up to 35°C (95°F), offering a warm average of 18°C (65°F). In contrast, April is cooler, with minimum temperatures dipping to -4°C (25°F) and a maximum of 30°C (85°F), leading to a lower average temperature of 12°C (54°F). Both months see similar levels of precipitation, with September receiving 44 mm (1.7 in) over about 7 days and April slightly higher at 46 mm (1.8 in) across 10 days. Humidity is also notably higher in April at 75%, compared to September's 68%. For a deeper look at April weather specifics, you can check Debrecen weather in April.

In September, temperatures range from a cool 4°C (39°F) at night to a warm 35°C (95°F) during the day, with an average temperature of 18°C (65°F). The month experiences about 44 mm (1.7 in) of precipitation over 7 days, and humidity is relatively high at 68%. In contrast, May offers a slightly milder experience, with temperatures also starting at 4°C (39°F), but peaking at 31°C (88°F) and averaging around 17°C (63°F). May is wetter, with 78 mm (3.1 in) of rainfall over 12 days and higher humidity at 72%. For more details on May weather, check out Debrecen weather in May.

In comparing the weather between September and June, we see notable differences in temperature and precipitation patterns. September experiences a wider temperature range with a minimum of 4°C (39°F) and a maximum of 35°C (95°F), averaging around 18°C (65°F). In contrast, June is warmer overall with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 38°C (101°F) and an average of 22°C (72°F). However, June also brings more precipitation, totaling 86 mm (3.4 in) over 15 days, compared to September's 44 mm (1.7 in) over just 7 days. Humidity levels remain relatively high in both months, with September at 68% and June slightly higher at 72%. For more detailed information, you can check out Debrecen weather in June.

In comparing the weather between September and July, we see a distinct shift in temperatures and precipitation patterns. September offers a broader range with minimum temperatures dipping to 4°C (39°F), while averaging 18°C (65°F) and peaking at 35°C (95°F). In contrast, July maintains warmer conditions, with minimum temperatures starting at 9°C (49°F), an average of 23°C (74°F), and a maximum that reaches 36°C (98°F). While July experiences more rainfall, totaling 66 mm (2.6 in) over 11 days, September sees a reduction in precipitation to 44 mm (1.7 in) over just 7 days. Humidity levels are slightly lower in September at 68% compared to July's 71%. For more detailed weather information, check out Debrecen weather in July.

In comparing the weather of September and August, we can observe notable differences. September tends to be cooler, with minimum temperatures dropping to 4°C (39°F) and an average of 18°C (65°F), while August boasts warmer minimums starting at 10°C (51°F) and an average of 24°C (75°F). The maximum temperatures also reflect this shift, reaching up to 35°C (95°F) in September compared to the sweltering 39°C (102°F) in August. Precipitation is slightly higher in August, with 58 mm (2.3 in) compared to September's 44 mm (1.7 in), although both months experience rain on about 7 days. Humidity levels are higher in September at 68%, while August maintains a slightly lower humidity of 62%. For more detailed information about August weather, you can visit Debrecen weather in August.

September and October present distinct shifts in weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 35°C (95°F), with an average of 18°C (65°F). The month experiences about 44 mm (1.7 in) of precipitation over 7 days, accompanied by a moderate humidity level of 68%. In contrast, October sees a noticeable drop in temperatures, with minimums dropping to -1°C (30°F) and average temperatures around 13°C (55°F). While the maximum temperature reaches 28°C (82°F), it is coupled with increased precipitation levels of 51 mm (2.0 in) over 8 days and higher humidity at 84%. For more details on October's weather, check Debrecen weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a comfortable 4°C (39°F) at night to a warm 35°C (95°F) during the day, with an average of 18°C (65°F). The month experiences relatively low precipitation at 44 mm (1.7 in) over about 7 days, along with a moderate humidity level of 68%. In stark contrast, November sees temperatures drop significantly, with nighttime lows reaching -4°C (25°F) and daytime highs peaking at 24°C (75°F), averaging around 7°C (45°F). The month is slightly wetter, with 52 mm (2.0 in) of precipitation over about 9 days and a notable increase in humidity to 90%. For more detailed insights, you can visit Debrecen weather in November.

September weather is marked by warm temperatures that range from a minimum of 4°C (39°F) to a maximum of 35°C (95°F), with an average of 18°C (65°F). The month experiences moderate precipitation, averaging 44 mm (1.7 in) over about 7 days, and humidity levels around 68%. In stark contrast, December brings much colder conditions, with temperatures dipping to a minimum of -9°C (16°F) and an average temperature of just 3°C (37°F). The maximum temperature hovers at 15°C (59°F). Precipitation increases to 67 mm (2.6 in) over approximately 11 days, accompanied by higher humidity levels at 92%. To explore more about December weather, you can visit this link: Debrecen weather in December.

Compare Debrecen's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Debrecen

As summer bids farewell, September in Debrecen ushers in a noticeable transition in weather. The days are typically warm, with temperatures gradually dipping from the highs of summer, and the cooler evenings are a welcome change for many. While the month may bring a few rainy days, the overall humidity remains comfortable, making September a pleasant time to explore the city’s vibrant offerings. This delightful balance of warmth and refreshment sets September apart from the hotter months, inviting locals and visitors alike to enjoy the crisp autumn air. For a deeper dive into the region's climatic patterns, check out Debrecen Climate.