Last updated: August 21, 2025
In September, Shumen, Bulgaria experiences a delightful transition from the summer heat to the crispness of autumn. Maximum temperatures can soar to a sizzling 33°C (91°F), while the average hovers around a pleasant 19°C (67°F), offering a comfortable climate for outdoor activities. Minimum temperatures dip to a cool 3°C (37°F) at night, adding a refreshing chill to the evenings. The month sees a modest precipitation amount of 19 mm (0.8 in), spread across three rainy days, maintaining lush green landscapes. With an average humidity of 58%, the air remains pleasantly breathable, making September an ideal time to explore this historic city.
As September rolls into Shumen, Bulgaria, a noticeable shift in temperatures begins, signaling the transition from the swelter of summer to the mildness of autumn. With minimum temperatures averaging around 3°C (37°F) and maximums reaching up to 33°C (91°F), the month boasts a comfortable average of 19°C (67°F), making it an inviting time for outdoor exploration. This moderate climate stands in contrast to the peak summer heat, providing a welcome relief and encouraging locals and visitors alike to enjoy the city's parks and historical sites. As autumn approaches, the variability of the weather hints at the changing seasons, making September a delightful month to experience the natural beauty of Shumen.
September in Shumen, Bulgaria, marks a notable shift in precipitation patterns as the summer heat fades. With just 19 mm (0.8 in) of rainfall spread over a mere 3 days, it’s one of the driest months of the year, reflecting a significant drop from the ample 99 mm (3.9 in) recorded in June. This decline signals the gradual transition into autumn, following a drier August. As September wraps up, the anticipation of increased rainfall returns in October, where averages rise again to 52 mm (2.0 in). This cyclical fluctuation underscores the distinct seasonal changes characteristic of the region, offering a reprieve from the summer's humidity while hinting at the wetter months to come.
As summer transitions to autumn in Shumen, Bulgaria, September sees a moderate increase in humidity, rising to 58% from August's low of 48%. This shift marks a gradual yet significant change as the region prepares for the cooler months ahead. Throughout the year, humidity levels are typically highest in January at 88%, steadily declining to their annual low in August. The return of moisture in September foreshadows the approach of fall, with humidity levels expected to climb again as the winter months approach, peaking once more by December. This pattern illustrates the cyclical nature of Shumen’s climate, where dry summers give way to the more humid periods of late autumn and winter.
As September rolls into Shumen, Bulgaria, the UV Index remains high at 7, a slight decline from the peak summer months. This indicates that while it's still essential to be cautious under the sun, the burn time is extended to about 25 minutes. Transitioning from the scorching heat of the summer, where the UV Index consistently hit 9, September invites a bit more comfort while still reminding residents and visitors alike of the importance of sun protection. With the days becoming shorter and cooler, it’s a perfect time to enjoy outdoor activities, but don’t forget to check the Shumen UV Index before heading out!
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Shumen, Bulgaria, enjoys a pleasing transition into autumn with September's sunshine, offering 337 hours of bright days. This month reflects a gentle decline from the peak of July, which boasts an impressive 421 hours of sunlight. As summer fades, September's warm glow bridges the vibrant energy of the previous months, making it a perfect time for outdoor activities. The sunny hours taper off gradually, marking a shift in the seasonal rhythm, with October anticipated to yield 278 hours. This pattern illustrates a clear trend of diminishing daylight, yet September remains a delightful time to soak in the lingering warmth before the chill of winter sets in.
In Shumen, Bulgaria, September offers a promising 55% chance of sunny weather, making it one of the brighter months of the year. As summer transitions into autumn, this month benefits from a significant drop in cloud cover, comparable to the preceding months of July and August, which boast sunny probabilities of 74% and 70%, respectively. Though the likelihood of sunshine gently declines as autumn approaches, September still provides a favorable time to enjoy outdoor activities. This trend underscores a gradual shift in weather patterns, with April through June showing only marginal chances of sunshine around the 44% mark, highlighting the vibrant shift toward sunnier days as summer peaks. Thus, if you're planning a visit during this month, you can expect a pleasant balance of warmth and sun!
As September arrives in Shumen, Bulgaria, the daylight hours begin a gradual decline, offering 12 hours of sunlight—a balance between the long summer days and the shorter ones of autumn. This month marks a subtle transition, as the sun dips earlier in the evening, inviting a cozy shift in atmosphere. Following the vibrant 14 hours of daylight in May and June, September still enjoys a generous amount of light, lingering longer than the approaching October with its 10 hours. This gentle decrease is a reminder of nature's rhythm, as it prepares for the winter months when daylight is limited to just 9 hours in both November and December. Embrace this fleeting glow of September as it ushers in the beauty of fall, with its rich colors and cooler breezes.
As September arrives in Shumen, Bulgaria, the average wind speed gently picks up to 2.6 m/s (6 mph), reflecting a slight increase compared to the summer months when winds were at their calmest. This transition marks the tail end of a notably tranquil summer, characterized by a steady decline in wind throughout July and August, reaching a low of 2.2 m/s (5 mph). The autumn breeze, however, signals a change; it has consistently hovered around 2.6 m/s into October and November, mirroring the September conditions. This trend suggests a return to more dynamic weather patterns as the seasons shift, inviting both locals and visitors to bask in the relaxing yet invigorating September wind, which gently rustles the foliage in the beautiful landscape of Shumen.
Weather in Shumen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shumen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 33°C (91°F) and an average of 19°C (67°F). The month experiences relatively low precipitation, totaling 19 mm (0.8 in) over just three days, and the humidity is a moderate 58%. In contrast, January brings much colder conditions, with temperatures dipping as low as -17°C (2°F) and averaging around 1°C (34°F), peaking at a maximum of 16°C (61°F). The month is significantly wetter, with 49 mm (1.9 in) of precipitation spread over seven days and a higher humidity level of 88%. For more insights on the chilly conditions, you can visit Shumen weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 3°C (37°F) at night to a warm average of 19°C (67°F) during the day, peaking at a scorching 33°C (91°F). This month experiences relatively low precipitation, with only 19 mm (0.8 in) falling over just three days and a humidity level of 58%. In contrast, February brings chillier conditions, with nighttime temperatures dropping to -12°C (11°F) and an average of 4°C (39°F) during the day, reaching a maximum of only 19°C (66°F). This month is much wetter, with 44 mm (1.7 in) of precipitation spread over seven days and a higher humidity of 84%. For more detailed insights, check out Shumen weather in February.
September brings a warm climate, with temperatures ranging from a chilly 3°C (37°F) to a hot 33°C (91°F), and an average of 19°C (67°F). The month sees relatively low precipitation, accumulating 19 mm (0.8 in) over just three days, and a humidity level of 58%. In contrast, March is much colder, with minimum temperatures plummeting to -13°C (10°F) and an average high of 22°C (72°F). Precipitation in March is notably higher, totaling 64 mm (2.5 in) over about ten days, accompanied by increased humidity at 81%. For a more detailed look at March weather, check out Shumen weather in March.
When comparing the weather in September and April, notable differences emerge. September typically boasts warmer temperatures, with averages around 19°C (67°F) and maximums reaching up to 33°C (91°F), while April's temperatures are more moderate, averaging 11°C (52°F) and peaking at 27°C (80°F). Precipitation is also a factor; September sees a relatively low 19 mm (0.8 in) over just 3 days, compared to April, which experiences higher rainfall of 39 mm (1.6 in) spread over 7 days. Additionally, April tends to be more humid, with levels at 70% versus September's 58%. For further details on April weather, you can refer to Shumen weather in April.
In comparing the weather of September and May, we see notable differences in temperature and precipitation patterns. September boasts a wider temperature range with minimums of 3°C (37°F) and maximums peaking at 33°C (91°F), resulting in a warm average of 19°C (67°F). In contrast, May presents milder conditions with a lower average temperature of 16°C (62°F) and maximums of 29°C (84°F).
Additionally, September experiences only 19 mm (0.8 in) of precipitation over just 3 days, while May is considerably wetter with 51 mm (2.0 in) across 9 days. The humidity levels also differ, as September has a relative humidity of 58%, compared to May's higher 72%. For more detailed information on the weather during this month, you can refer to Shumen weather in May.
In comparing the weather in September and June, September tends to be warmer during the day, with average temperatures around 19°C (67°F) and maximums peaking at 33°C (91°F), but it starts off cooler with minimums dropping to 3°C (37°F). In contrast, June offers milder temperatures, with an average of 21°C (69°F) and a higher minimum of 8°C (46°F), making it generally more comfortable overall. However, June experiences significantly more rainfall, with 99 mm (3.9 in) over 15 days, compared to September's 19 mm (0.8 in) over only 3 days, leading to higher humidity levels of 66% in June versus 58% in September. For a detailed look at June weather, you can check Shumen weather in June.
In comparing the weather between July and September, notable differences emerge. July experiences warmer temperatures with a minimum of 13°C (55°F) and an average of 23°C (74°F), peaking at a high of 37°C (100°F). This month also sees significant rainfall, totaling 50 mm (2.0 in) over approximately 10 days, alongside a humidity level of 62%. In contrast, September enjoys a more moderate climate, featuring a minimum temperature of 3°C (37°F) and an average of 19°C (67°F), with maximum temperatures reaching 33°C (91°F). Rainfall in September is lighter, amounting to just 19 mm (0.8 in) across only 3 days, and humidity is slightly lower at 58%. For a more detailed look at July's climate, visit Shumen weather in July.
September shows a noticeable shift in temperatures compared to August. While August boasts an average temperature of 24°C (75°F) with highs reaching up to 38°C (101°F), September experiences a cooler average of 19°C (67°F), with maximum temperatures peaking at 33°C (91°F). This transition is also reflected in the minimum temperatures, dropping from 12°C (53°F) in August to just 3°C (37°F) in September. Additionally, September has slightly less precipitation at 19 mm (0.8 in) over three days, compared to August's 21 mm (0.8 in) over four days. Notably, humidity levels are higher in September at 58%, contrasted with August's lower humidity of 48%. For more details about August weather, you can visit Shumen weather in August.
September and October present notable contrasts in weather patterns. In September, temperatures range from a minimum of 3°C (37°F) to a maximum of 33°C (91°F), with an average of 19°C (67°F) and relatively low precipitation of 19 mm (0.8 in) over just 3 days. The humidity stands at 58%, offering warm and comfortable days. In contrast, October sees a significant drop in average temperature to 13°C (56°F), with minimums dipping to 1°C (34°F) while max temperatures reach 31°C (87°F). This month experiences more rainfall, totaling 52 mm (2.0 in) over 6 days, and increased humidity at 78%, creating a cooler and wetter atmosphere. For a detailed forecast, check Shumen weather in October.
September typically features warmer temperatures, with a minimum of 3°C (37°F) and an average of 19°C (67°F), peaking at a maximum of 33°C (91°F). The month experiences relatively low precipitation, totaling only 19 mm (0.8 inches) over about 3 days, resulting in a humidity level of 58%. In contrast, November brings a significant shift in weather, characterized by cooler temperatures that range from a minimum of -5°C (23°F) to an average of 8°C (47°F), and reaching a maximum of 26°C (79°F). This month is also marked by increased precipitation, with 48 mm (1.9 inches) falling over approximately 7 days, contributing to a higher humidity of 85%. For more detailed weather insights, check Shumen weather in November.
September and December present strikingly different weather conditions. In September, temperatures can range from a mild 3°C (37°F) at night to a warm 33°C (91°F) during the day, with an average of 19°C (67°F). This month typically sees only 19 mm (0.8 in) of precipitation over about 3 rainy days, and the humidity hovers around 58%. In contrast, December brings a much chillier environment, with temperatures dropping significantly, featuring a minimum of -11°C (13°F) and a maximum of 18°C (64°F), with an average of just 4°C (39°F). The precipitation increases dramatically to 66 mm (2.6 in) over approximately 12 days, coupled with a higher humidity level of 87%. For more detailed information, you can check Shumen weather in December.
As September rolls in, Shumen experiences a delightful transition that sets it apart from the sweltering summer months. With average temperatures settling around a comfortable 19°C (67°F), the heat of July and August begins to ebb, bringing refreshing relief, while the occasional warm spike can still reach up to 33°C (91°F). This month also sees a notable decrease in humidity levels, which hover around 58%, creating a more enjoyable atmosphere for outdoor activities. Although rain is relatively sparse, with just 19 mm (0.8 in) of precipitation over a handful of days, September’s slightly cooler evenings invite cozy gatherings and picturesque sunset strolls. Embrace the charm of Shumen's September weather by exploring more at Shumen Climate.