September Weather in Asenovgrad, Bulgaria

Last updated: August 21, 2025

September in Asenovgrad, Bulgaria, showcases a mild transition from summer to autumn, with temperatures ranging from a pleasant 1°C (33°F) at night to a warm maximum of 33°C (91°F) during the day. The average temperature hovers around 18°C (65°F), allowing for comfortable outings. This month experiences a modest precipitation total of 44 mm (1.7 in), spread across approximately 4 days, contributing to the region's lush landscapes. With humidity levels at 57%, visitors can expect a refreshing yet slightly humid atmosphere, perfect for enjoying the picturesque surroundings while exploring the charming town.

September Temperature in Asenovgrad

In Asenovgrad, Bulgaria, September marks a delightful transition into autumn, characterized by a notable shift in temperatures. The month opens with minimums settling around 1°C (33°F), offering a crispness in the air that hints at the coming chill. By day, the average temperature basks in a comfortable 18°C (65°F), while the afternoons can reach a pleasant 33°C (91°F), creating ideal conditions for outdoor activities. This month stands out as a bridge from the warmth of summer—where July and August flaunt their heights with temperatures soaring to 37°C (99°F)—toward the cooler embrace of autumn. As September unfolds, residents and visitors can relish in the mild days and cool nights, a perfect backdrop for enjoying the vibrant colors that the season brings.

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

The chart illustrates September temperature patterns in Asenovgrad, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Asenovgrad, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333842505966717264544538
Data source: Temperature data for Asenovgrad 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 Asenovgrad

In September, Asenovgrad experiences a notable shift towards drier conditions, with precipitation totaling just 44 mm (1.7 in), reflecting a marked decrease from the lush summer months. The number of rainy days also dwindles to 4, making it one of the driest months of the year. This decline in rainfall follows a wet summer, where June saw a peak of 158 mm (6.2 in) of rain over 12 days, highlighting how the region transitions from the heavy downpours of mid-year to more moderate weather as autumn approaches. As September unfolds, residents can expect clearer skies, paving the way for a more temperate atmosphere, perfect for enjoying the shifting colors of fall.

September Precipitation Trends in Asenovgrad

The chart displays monthly precipitation patterns in Asenovgrad, 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 Asenovgrad, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec56628683102158774144757592
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Asenovgrad

September in Asenovgrad, Bulgaria, marks a noticeable transition in humidity, with levels averaging 57%. Following the dry heat of summer, which peaked in August at just 47%, September brings a mild increase in moisture as the air starts to cool. This uptick in humidity prepares the region for the oncoming autumn, contrasting sharply with the winter months that follow—where humidity levels soar back to 85% in November and 87% by December. Overall, September serves as a bridge between the arid summer and the damp, crisp air of fall, reminding residents and visitors of the dynamic shifts in Asenovgrad's climate.

September Average Humidity in Asenovgrad

This chart illustrates the average monthly humidity levels in Asenovgrad, 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 Asenovgrad is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%83%81%71%74%63%60%47%57%76%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Asenovgrad

As September rolls in, Asenovgrad experiences a notable transition in UV exposure, with an UV Index of 8 signaling a very high level of solar radiation. This trend reflects a gradual decline from the peak summer months of July and August, yet it remains crucial for residents and visitors to remain vigilant, as the burn time of just 15 minutes underscores the importance of sun protection. The elevated UV levels are a continuation of the intense rays experienced throughout the summer, where the index reached a maximum of 10 in June and July. As the days shorten and the temperatures begin to cool, it's essential to stay informed and prepared; for detailed UV forecasts and safety tips, check the Asenovgrad UV Index.

Maximum UV Index Levels in Asenovgrad for September

The chart shows the monthly maximum UV Index (UVI) for Asenovgrad 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 Asenovgrad typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34789101098633
Data source: Asenovgrad 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 Asenovgrad

As summer gives way to autumn in Asenovgrad, Bulgaria, September enjoys a remarkable 344 hours of sunshine, continuing the trend of bright days that peak in July with 426 hours. The sunny streak from May through August showcases the region’s warm embrace, with daylight gradually tapering off as the year progresses. Notably, September maintains a significant amount of sunlight, making it a splendid time for outdoor activities before the chill of October sets in. As the days shorten, the contrast between September's vibrant glow and the dimming months ahead emphasizes the fleeting beauty of this transitional period. Embrace the lingering warmth while it lasts!

Monthly Sunshine Duration in Asenovgrad: September Highlighted

The September sunshine duration represents the total number of hours Asenovgrad 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.
JanFebMarAprMayJunJulAugSepOctNovDec175h238h285h344h395h399h426h402h344h291h234h222h
Data source: Asenovgrad September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Asenovgrad During September

As September rolls in, the chance of sunny weather in Asenovgrad, Bulgaria stands at a pleasant 55%. This marks a notable drop from the vibrant summer months of July and August, boasting 82% and 76% chances of sunshine, respectively. Interestingly, September shares this moderate expectation with February and outperforms both April and May, which linger in the 40s. As the transition towards autumn begins, the likelihood of clear skies remains relatively favorable, making it a delightful time for outdoor activities and exploration before the cooler months set in.

Percentage of Sunny Days in September in Asenovgrad

The chart illustrates the percentage of sunny days in Asenovgrad 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 Asenovgrad experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%55%49%46%47%55%82%76%55%45%39%37%
Data source: Asenovgrad September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Asenovgrad in September

As September arrives in Asenovgrad, Bulgaria, the days begin to shorten, offering approximately 12 hours of daylight. This marks a gradual decline from the peak of 15 hours seen in June, as the summer warmth gives way to the cooler embrace of autumn. Following the vibrant energy of May and June, where daylight reached its zenith, there’s a smooth transition through the fading light of August. Interestingly, September’s daylight duration is still generous compared to the colder months ahead, such as November and December, which both offer only 9 hours. This trend highlights a gentle descent into winter, where shorter days envelop Asenovgrad, reminding us of the cyclical rhythm of nature.

Average Daylight Hours in Asenovgrad for September

The chart illustrates the variation in daylight duration in Asenovgrad throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 29m10h 34m11h 57m13h 22m14h 34m15h 10m14h 51m13h 47m12h 26m11h 1m9h 47m9h 9m
Data source: Asenovgrad daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Asenovgrad

As September arrives in Asenovgrad, Bulgaria, the gentle breezes start to mirror the transition of seasons. With an average wind speed of 1.7 m/s (4 mph), the air feels calm and soothing, providing a perfect backdrop for outdoor activities as summer edges into autumn. This slight dip in wind speed from the summer months indicates a gradual shift, as both August and July recorded slightly higher averages of 1.7 m/s and 2.0 m/s respectively. The consistent low winds throughout the year suggest a peaceful atmosphere, making September's breezes an ideal companion for leisurely strolls and enjoying the vibrant landscapes as nature prepares for the cooler months ahead.

Average September Wind Speed in Asenovgrad

The chart displays monthly wind speed patterns in Asenovgrad, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.92.01.71.91.92.01.71.7 m/s1.41.62.0
Data source: Asenovgrad September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Asenovgrad Compares to Other Months

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

In September, the weather is notably warmer, with average temperatures around 18°C (65°F) and maximums reaching up to 33°C (91°F). This month typically sees about 44 mm of precipitation over four days, along with a moderate humidity of 57%. In contrast, January brings much colder conditions, with average temperatures dropping to around 0°C (33°F) and minimums plummeting to -18°C (1°F). Precipitation increases slightly to 56 mm but is spread over eight days, resulting in a significantly higher humidity level of 88%. For more detailed climate information, you can check Asenovgrad weather in January.

In comparing the weather of September and February, one can see stark contrasts. September enjoys a warm climate with temperatures ranging from a chilly 1°C (33°F) at night to a pleasant 33°C (91°F) during the day, producing an average of 18°C (65°F). The month experiences moderate precipitation levels of 44 mm (1.7 in) over just four days, along with a humidity level of 57%. In stark contrast, February is much colder, with temperatures dropping to a minimum of -21°C (-6°F) and peaking only at 18°C (65°F), averaging around 3°C (38°F). This winter month sees higher precipitation at 62 mm (2.4 in), spread over nine days, and a humidity level of 83%. For more specific details about the weather in February, you can check Asenovgrad weather in February.

September and March exhibit stark contrasts in weather conditions. In September, temperatures range from a cool minimum of 1°C (33°F) to a warm maximum of 33°C (91°F), with an average of 18°C (65°F). The month receives 44 mm (1.7 in) of precipitation over just 4 days, and humidity levels sit at a moderate 57%. In stark contrast, March features a colder climate, where temperatures can drop to -16°C (4°F) at their lowest, with an average of 6°C (43°F) and a maximum of 22°C (72°F). This month is wetter as well, with precipitation totaling 86 mm (3.4 in) over 12 days, and a higher humidity of 81%. For more detailed insights on March weather, check out Asenovgrad weather in March.

When comparing the weather in September and April, a striking contrast emerges. September experiences a mild average temperature of 18°C (65°F), with maximums reaching up to 33°C (91°F), making it considerably warmer than April, which has an average of just 10°C (51°F) and max temperatures peaking at 26°C (79°F). Additionally, September sees significantly less precipitation at 44 mm (1.7 in) over just 4 days, while April is much wetter, recording 83 mm (3.3 in) over 11 days. This higher precipitation, combined with increased humidity at 71% in April compared to September's 57%, creates a distinctly cooler and more humid atmosphere during the spring month. For a detailed overview of what to expect, you can visit Asenovgrad weather in April.

When comparing the weather in September and May, notable differences emerge. September typically experiences a broader temperature range, with minimums as low as 1°C and maximums reaching up to 33°C, averaging around 18°C. In contrast, May has slightly milder temperatures, ranging from a minimum of 3°C to a maximum of 31°C, with an average of 15°C. Precipitation also varies significantly between the two months; September sees about 44 mm of rain over just 4 days, while May has a much higher total of 102 mm spread over 13 days, contributing to increased humidity levels of 74%. This makes May feel wetter and more humid compared to the clearer, warmer conditions typically found in September. For a more detailed look at May's weather, check Asenovgrad weather in May.

When comparing the weather in September and June, notable differences emerge. September presents a broader temperature range, with minimums dipping to 1°C (33°F) and maximums reaching up to 33°C (91°F), while June starts warmer with a minimum of 6°C (43°F) and a similar maximum of 34°C (94°F). Precipitation is significantly lower in September, totaling just 44 mm (1.7 in) over 4 days, compared to June's 158 mm (6.2 in) spread over 12 days, indicating a much wetter month. Additionally, June experiences slightly higher humidity at 63%, compared to September's 57%. For a more detailed look at June weather, you can refer to Asenovgrad weather in June.

When comparing the weather in September and July, it's clear that July tends to be warmer and wetter. July boasts an average temperature of 22°C (71°F) with maximums reaching up to 37°C (99°F), while September offers a milder average of 18°C (65°F) and can peak at 33°C (91°F). In terms of precipitation, July receives 77 mm (3.0 in) over 9 days, making it the wetter month compared to September's 44 mm (1.7 in) over just 4 days. Humidity levels are also slightly higher in July at 60% compared to September's 57%. For more details on July's weather, you can visit Asenovgrad weather in July.

In comparing the weather between September and August, notable differences arise. September experiences a wider temperature range, with minimums dropping to 1°C (33°F) and maximums reaching 33°C (91°F), while August remains warmer, with a minimum of 9°C (49°F) and a maximum of 37°C (99°F). The average temperature in September is cooler at 18°C (65°F), compared to August's 22°C (73°F). Precipitation levels are similar, with September receiving 44 mm (1.7 in) and August slightly less at 41 mm (1.6 in), both distributed over four days. Additionally, September exhibits higher humidity levels at 57%, versus August's 47%, contributing to a different overall feel during these months. For more detailed information, check out Asenovgrad weather in August.

September typically experiences warmer temperatures with an average of 18°C (65°F) and highs reaching up to 33°C (91°F), while October sees a notable drop, with averages around 12°C (54°F) and minimums dipping to -2°C (29°F). Precipitation also increases significantly in October, with 75 mm (3.0 in) of rain over 7 days compared to September's 44 mm (1.7 in) over just 4 days. Additionally, October brings higher humidity levels at 76%, compared to September's 57%. For more detailed information about October weather patterns, check out Asenovgrad weather in October.

September and November exhibit significantly different weather patterns. In September, temperatures range from a minimum of 1°C (33°F) to a maximum of 33°C (91°F), with an average of 18°C (65°F). The month sees relatively low precipitation, totaling 44 mm (1.7 in) over just 4 days and humidity levels around 57%. In contrast, November is much cooler, with temperatures ranging from -6°C (21°F) to 23°C (74°F) and an average of only 7°C (45°F). This month experiences higher precipitation at 74 mm (2.9 in) across 9 days, along with increased humidity at 85%. The stark differences highlight the transition from the warm, dry conditions of early autumn to the colder, wetter climate typical of late fall. For more details, you can check Asenovgrad weather in November.

In September, the weather is noticeably warmer, with average temperatures reaching around 18°C (65°F) and maximums peaking at 33°C (91°F). The month sees relatively low precipitation, totaling 44 mm (1.7 in) over just 4 days, and the humidity averages 57%. In stark contrast, December ushers in a much chillier climate, with average temperatures dropping to 3°C (38°F) and maximums only reaching 17°C (63°F). This month experiences significantly higher precipitation, totaling 92 mm (3.6 in) over 11 days, along with increased humidity levels of 87%. For more detailed insights, check out Asenovgrad weather in December.

Compare Asenovgrad's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Asenovgrad

As September unfolds in Asenovgrad, it brings a delightful transition from the summer heat, with temperatures showcasing a pleasant balance between warmth and coolness. Unlike the peak summer months, where the mercury often soars, September offers a more moderate average, inviting outdoor activities without the sweltering highs. The month also sees a welcome reduction in rainfall, with only a few drizzly days, making it perfect for exploration. The humidity remains comfortable, adding to the overall pleasantness of the climate. For a deeper insight into the yearly atmospheric patterns, check out Asenovgrad Climate.