September Weather in Kazanlak, Bulgaria

Last updated: August 21, 2025

September in Kazanlak, Bulgaria offers a delightful transition from summer to autumn, with maximum temperatures reaching up to 34°C (94°F) and an average of 19°C (67°F). Cool nights can dip as low as 2°C (36°F), creating a refreshing contrast. The month sees a moderate 21 mm (0.8 in) of precipitation spread over just 4 days, making for generally pleasant weather. With a relative humidity of 58%, visitors can enjoy the charm of this picturesque city as it subtly shifts into the fall season, perfect for exploring its rich cultural heritage.

September Temperature in Kazanlak

As September rolls into Kazanlak, the temperatures begin to reflect the gentle transition from the sweltering summer to the crispness of autumn. With minimums dipping to 2°C (36°F) and average highs reaching a pleasant 34°C (94°F), this month offers a delightful balance. The average temperature settles around 19°C (67°F), making it an inviting time for outdoor activities. Compared to the soaring heat of August, where temperatures frequently peaked at 38°C (101°F), September is a refreshing respite. The gradual cooling trend serves as a precursor to the chillier months ahead, ensuring that Kazanlak is bathed in a tapestry of warm colors and comfortable temperatures, perfect for exploring its rich cultural landscape.

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

The chart illustrates September temperature patterns in Kazanlak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kazanlak, 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).
JanFebMarAprMayJunJulAugSepOctNovDec343943526268737467564638
Data source: Temperature data for Kazanlak 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 Kazanlak

In September, Kazanlak experiences a significant drop in precipitation, receiving just 21 mm (0.8 in) over four rainy days. This marks a stark contrast to the wetter months preceding it, particularly June, which delivers a substantial 128 mm across 17 days. As summer transitions into autumn, the decline in rainfall not only lessens the overall moisture but also hints at a shift towards drier weather patterns, making September one of the drier months of the year. The light precipitation and reduced rainfall days suggest a change in the landscape, with clearer skies often prevailing, setting the stage for the vibrant colors of autumn that follow.

September Precipitation Trends in Kazanlak

The chart displays monthly precipitation patterns in Kazanlak, 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 Kazanlak, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec5049745177128813121676287
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kazanlak

In Kazanlak, Bulgaria, September marks a subtle shift in humidity as autumn approaches, with levels averaging 58%. This is a noticeable dip from the summer peak of 48% in August, signaling a transition to cooler, more refreshing weather. The trend throughout the year reveals a gradual decrease in humidity from the very high levels experienced in winter months, like 88% in January and 84% in February, down to the comfortable yet moderate September levels. As the season progresses into October, humidity rises again to 78%, indicating the cyclical nature of Kazanlak's climate, where the air becomes more saturated once more as winter nears.

September Average Humidity in Kazanlak

This chart illustrates the average monthly humidity levels in Kazanlak, 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 Kazanlak is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%84%81%70%72%66%62%48%58%78%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kazanlak

In September, Kazanlak experiences a shift in the UV Index, dropping to 7, which falls into the high exposure category. This decrease from its summer peak indicates that while the sun remains impactful, the risk of overexposure is slightly reduced compared to the scorching months of June, July, and August. With a burn time of 25 minutes, it’s essential to be mindful and take precautions if you plan to spend time outdoors. As the season transitions into autumn, you'll notice a gradual decline in UV levels, suggesting the importance of adjusting your sun safety practices accordingly. For more detailed information on the UV Index throughout the year, check out Kazanlak UV Index.

Maximum UV Index Levels in Kazanlak for September

The chart shows the monthly maximum UV Index (UVI) for Kazanlak 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 Kazanlak typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Kazanlak 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 Kazanlak

As summer begins to wane, September in Kazanlak, Bulgaria continues to bask in a generous 342 hours of sunlight, closing out the warmer months with a vibrant glow. This month sees a gentle decline in daylight hours, a contrast to the peak of July, which boasts an impressive 426 hours. While the sunlight begins to taper off compared to the soaring heights of summer, September's ample sunshine still encourages outdoor activities and the beauty of early autumn. The transition from the sun-drenched days of August and high summer not only marks a shift in the season but also highlights the enduring charm of Kazanlak, where warm rays linger just a little longer before the cooler months arrive. The trend showcases a gradual decrease in sunlight as the year progresses, yet September offers a lovely blend of warmth and brightness that makes it a delightful time to explore this picturesque region.

Monthly Sunshine Duration in Kazanlak: September Highlighted

The September sunshine duration represents the total number of hours Kazanlak 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.
JanFebMarAprMayJunJulAugSepOctNovDec172h231h286h345h393h401h426h404h342h289h231h216h
Data source: Kazanlak September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kazanlak During September

As September rolls into Kazanlak, Bulgaria, residents can expect a 53% chance of sunny weather, marking a delightful transition from the bright summer months. While the peak sunshine in July and August offers an impressive 78% and 74% respectively, September holds its own as the season begins to shift. The general trend shows an increase in sunshine leading into the summer, with a gradual decline as autumn approaches. However, with more than half of September likely to be sunny, it’s an ideal time for outdoor activities and enjoying the lingering warmth before the cooler months set in. Embrace the vibrant hues of early autumn under a sunny sky in this charming town!

Percentage of Sunny Days in September in Kazanlak

The chart illustrates the percentage of sunny days in Kazanlak 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 Kazanlak experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%48%44%44%45%47%78%74%53%39%34%31%
Data source: Kazanlak September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kazanlak in September

As summer fades into autumn, September in Kazanlak, Bulgaria marks a gentle shift in daylight duration. With 12 hours of sunlight, the month still enjoys a generous stretch of daylight, bridging the vibrant glow of summer and the softer hues of fall. This gradual decrease from July's peak of 14 hours reflects a natural transition, as the days become shorter, inviting a cozy atmosphere. Following the lush brightness of spring and summer, September serves as a reminder of nature's rhythms, leading into the crisp, shorter days of October with 11 hours of daylight.

Average Daylight Hours in Kazanlak for September

The chart illustrates the variation in daylight duration in Kazanlak throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 26m10h 32m11h 57m13h 23m14h 37m15h 14m14h 55m13h 49m12h 26m11h9h 44m9h 5m
Data source: Kazanlak daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kazanlak

As September arrives in Kazanlak, Bulgaria, the average wind speed settles at a gentle 2.0 m/s (4 mph), reflecting a slight dip from the summer months. After experiencing a consistent 2.2 m/s (5 mph) in both July and May, the softer breezes of early autumn create a serene atmosphere, perfectly complementing the vibrant hues of the changing leaves. This mild wind speed, characteristic of the transition into fall, mirrors the overall trend of decreasing wind intensity, particularly as it starts to mimic the calmer conditions of the previous winter months. The shift is subtle yet significant, offering a refreshing pause before the chill of October descends upon this picturesque landscape.

Average September Wind Speed in Kazanlak

The chart displays monthly wind speed patterns in Kazanlak, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.02.21.92.21.82.21.92.0 m/s1.91.62.2
Data source: Kazanlak September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kazanlak Compares to Other Months

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

September and January present strikingly different weather patterns. In September, the temperatures range from a mild 19°C (67°F) on average, peaking at 34°C (94°F), making it a warm month ideal for outdoor activities. With only 21 mm (0.8 in) of precipitation over about four days, humidity hovers around a comfortable 58%. In contrast, January is characterized by much colder temperatures, with an average of just 1°C (34°F) and lows dipping to -15°C (5°F). It is also significantly wetter, with 49 mm (1.9 in) of precipitation spread over eight days and a much higher humidity level at 88%. For more detailed insights on January weather, you can visit Kazanlak weather in January.

In comparing the weather between September and February, there is a stark contrast in temperatures and conditions. September features a much warmer range, with temperatures soaring from a minimum of 2°C (36°F) to a maximum of 34°C (94°F), while February presents a chillier climate, with temperatures dipping as low as -12°C (10°F) and peaking at 18°C (65°F). Additionally, September experiences only 21 mm (0.8 in) of precipitation over about 4 days, whereas February is significantly wetter with 49 mm (1.9 in) over 8 days, contributing to a higher humidity level of 84% compared to September's 58%. For a detailed look at February conditions, you can visit Kazanlak weather in February.

September and March offer contrasting weather experiences. September features milder temperatures, with averages around 19°C (67°F), a maximum of 34°C (94°F), and relatively low precipitation of 21 mm (0.8 in) over about 4 days. In contrast, March is much colder, with a minimum temperature plummeting to -19°C (-1°F) and an average of only 6°C (44°F). Additionally, March sees significantly higher precipitation at 74 mm (2.9 in) over 11 days, accompanied by increased humidity levels at 81%. For more detailed insights into March weather, check out Kazanlak weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and precipitation patterns. September typically boasts warmer temperatures, with averages around 19°C (67°F) and highs reaching up to 34°C (94°F). In contrast, April's temperatures are cooler, averaging 11°C (52°F) with a maximum of 27°C (81°F). Additionally, September enjoys relatively low precipitation, only 21 mm (0.8 in) across about 4 days, whereas April experiences higher rainfall, totaling 51 mm (2.0 in) over 9 days. The humidity levels are also higher in April at 70%, compared to September's 58%, making April feel more damp. For more information on April weather, check out Kazanlak weather in April.

When comparing the weather in September and May, noticeable differences emerge. September experiences a broader temperature range with a minimum of 2°C (36°F) and a maximum of 34°C (94°F), embodying the transition from summer to fall. In contrast, May has a slightly higher minimum temperature of 4°C (40°F) and a maximum of 31°C (88°F), signaling the end of spring. Precipitation is significantly higher in May, with 77 mm (3.0 in) over 12 days, compared to only 21 mm (0.8 in) over 4 days in September. Additionally, May's humidity level at 72% surpasses September's 58%, contributing to a more muggy atmosphere. For a detailed overview of the climate, check out Kazanlak weather in May.

September and June offer distinct weather experiences. In September, temperatures range from a cooler minimum of 2°C (36°F) to a pleasant average of 19°C (67°F), and can peak at a warm 34°C (94°F). The month is relatively dry with only 21 mm (0.8 in) of precipitation over about 4 days and a humidity level of 58%. In contrast, June features a warmer minimum of 7°C (45°F), an average temperature of 20°C (68°F), and the same maximum of 34°C (94°F). However, June is considerably wetter, receiving 128 mm (5.0 in) of rain spread over 17 days, accompanied by a higher humidity at 66%. For more details, you can check Kazanlak weather in June.

When comparing the weather in September and July, it is clear that July tends to be warmer and wetter. July features a minimum temperature of 11°C (53°F) and can reach highs of up to 37°C (99°F), with an average temperature of 23°C (73°F). This month also experiences considerably more rainfall, with 81 mm (3.2 in) of precipitation over about 11 days, contributing to a humidity level of 62%. In contrast, September offers a milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 34°C (94°F), and an average of 19°C (67°F). Precipitation decreases significantly to 21 mm (0.8 in) spread across only 4 days, resulting in a slightly lower humidity of 58%. For more detailed information specifically on July weather, you can visit Kazanlak weather in July.

In comparing the weather of September and August, September tends to be cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 34°C (94°F), averaging 19°C (67°F). In contrast, August features a milder temperature range, with a minimum of 11°C (52°F) and a peak at 38°C (101°F), averaging 23°C (74°F). Precipitation is slightly lower in September at 21 mm (0.8 in) over 4 days, compared to 31 mm (1.2 in) across 6 days in August. Additionally, September experiences higher humidity levels at 58%, while August remains relatively comfortable at 48%. For a detailed overview, you can check Kazanlak weather in August.

The weather in September is typically warmer, with average temperatures around 19°C (67°F) and a maximum of 34°C (94°F). In contrast, October brings a significant drop in temperatures, averaging only 13°C (56°F) and peaking at 31°C (89°F). While September experiences relatively low precipitation at 21 mm (0.8 in) over just 4 days, October sees a notable increase, with 67 mm (2.6 in) falling over 6 days and higher humidity levels of 78%. For more detailed information, you can check Kazanlak weather in October.

September sees a wide range of temperatures, with a minimum of 2°C (36°F), an average of 19°C (67°F), and a maximum of 34°C (94°F). The month also boasts relatively low precipitation at 21 mm (0.8 in) over just four days, and humidity levels hover around 58%. In contrast, November brings a significant drop in temperatures, starting at a minimum of -4°C (26°F) and averaging 8°C (46°F), with a maximum of 25°C (77°F). This month experiences considerably higher precipitation of 62 mm (2.4 in) spread across eight days, coupled with increased humidity at 85%. For a closer look at Kazanlak's weather during this month, you can visit Kazanlak weather in November.

The weather comparison between September and December reveals a significant shift in temperatures and precipitation patterns. In September, temperatures range from a pleasant 19°C (67°F) on average, peaking at a warm 34°C (94°F), while precipitation is relatively low at 21 mm (0.8 in) across just four days. In contrast, December brings much colder conditions, with average temperatures dropping to 4°C (39°F) and as low as -9°C (15°F) at night. This month also experiences substantially higher precipitation, totaling 87 mm (3.4 in) over 11 days, and a marked increase in humidity at 87%. For those interested in more details about December weather in Kazanlak, you can check out Kazanlak weather in December.

Compare Kazanlak's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kazanlak

As September unfolds in Kazanlak, the weather shifts dramatically from the blazing summer months, offering a refreshing respite with milder temperatures and a notable decrease in humidity. The average temperature settles comfortably around 19°C (67°F), while the occasional warm day can see highs reaching 34°C (94°F), making it a pleasant time for outdoor activities. Rainfall is modest, with only a few days of precipitation, allowing for plenty of sunshine and clear skies. This transitional month provides the perfect backdrop for experiencing the natural beauty and vibrant culture of Kazanlak. For more detailed insights, visit Kazanlak Climate.