Last updated: August 21, 2025
Experience the charming September weather of Sandanski, Bulgaria, where the temperatures range from a warm maximum of 33°C (92°F) to a refreshing minimum of 2°C (35°F). With an average temperature of 19°C (67°F), the climate invites visitors to enjoy outdoor activities while basking in the sunshine. This month, rainfall is moderate, with a total precipitation of 32 mm (1.3 in) over 4 days, accounting for a humidity level of 57%. Whether you prefer exploring the lush landscapes or relaxing in the comfortable temperatures, September in Sandanski offers a delightful escape for all nature lovers.
In September, Sandanski, Bulgaria, ushers in the early whispers of autumn, presenting a delightful transition in temperatures. With average highs reaching 33°C (92°F), the month still boasts a warm climate, encouraging outdoor activities and exploration. Nights begin to cool down, dipping to a minimum of 2°C (35°F), offering a refreshing contrast to the heat of summer. The overall average temperature of 19°C (67°F) reflects a pleasant warmth, making it an ideal time for visitors to enjoy the stunning landscapes and rich cultural experiences without the sweltering summer crowds. As the days grow shorter and the leaves begin to change, September in Sandanski is a perfect blend of lingering warmth and the crisp anticipation of fall.
September in Sandanski, Bulgaria, brings a gentle transition into autumn, characterized by a modest precipitation level of 32 mm (1.3 in). With only 4 days of rainfall, this month showcases a notable decline from the wetter summer months, where heavy downpours are common. Following the peak of 70 mm (2.8 in) in June, September's precipitation emphasizes the drying trend, positioning it as one of the driest months of the year alongside August. As leaves begin to change and the air turns crisp, the reduced rainfall aligns with the overall trend of diminishing monthly totals, setting the stage for the wetter months ahead.
In September, Sandanski experiences a noticeable shift in humidity, with levels at 57%—a marked increase from the dry summer months of July and August, which recorded only 60% and 47%, respectively. This transition reflects the onset of autumn, as humidity begins to rise again, setting the stage for the wetter months ahead. The gradual climb from the summer lows hints at the return of the crisp and refreshing air characteristic of the fall season. As the year progresses into October, humidity levels surge to 76%, indicating a significant change from the previous drier months, and leading into the higher humidity typical of winter. Overall, September serves as a bridge between the summer heat and the cooler, more humid days of autumn, showcasing Sandanski's dynamic climate.
As September arrives in Sandanski, Bulgaria, the UV Index remains at a notable 8, categorizing the sun exposure as very high. This indicates a continuation of the intense sun conditions seen throughout the summer months, where the UV Index peaked at 11 in June. With a burn time of just 15 minutes, it's essential for residents and visitors to remain vigilant and protect their skin, even as the days begin to cool. This trend of high UV levels transitions into a gradual decline as October approaches, offering a respite at an Index of 6. For detailed information on UV levels throughout the year, check out the Sandanski UV Index.
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As autumn begins to embrace Sandanski, Bulgaria, September continues to offer a generous share of sunshine, boasting 346 hours of sunlight. This delightful month captures the lingering warmth of summer, where daylight gradually wanes from the peak of July's 427 hours. Following the vibrant summer months, September maintains a commendable brightness, albeit less than the 400 hours in May and June. As the calendar shifts towards autumn, it provides ample opportunity for both locals and visitors to enjoy the stunning landscapes and serene ambiance of this picturesque town before the cooler days of October arrive, which sees a further decline to 295 hours. The gradual transition underscores Sandanski's glorious climate and the beauty of its slower-paced seasonal shift.
As summer transitions to autumn, September in Sandanski, Bulgaria, maintains a delightful balance of sunshine, boasting a 54% chance of sunny weather. This month is particularly promising when compared to the earlier fall months, with a higher probability of sun than both October (48%) and November (32%). Interestingly, September's likelihood of clear skies captures the tail end of the warm summer months, where July and August enjoy remarkable sunlight at 75% and 77%, respectively. This gradual decline in sunny days emphasizes a seasonal shift while still offering ample opportunities for outdoor activities and relaxation in the sun-drenched landscapes of Sandanski.
As summer wanes into autumn, September in Sandanski, Bulgaria experiences a gradual shift in daylight duration, offering around 12 hours of sunlight each day. This marks a gentle decline from the sun-drenched 15 hours in June, signaling the transition from vibrant summer days to the crisper autumn weeks ahead. Following the peak brightness of May and June, September’s daylight serves as a tranquil reminder of the seasonal ebb and flow, paving the way for the shorter, cozy days of October and November, which average around 11 hours and 9 hours respectively. As daylight wanes, Sandanski's landscape transforms, inviting residents and visitors alike to savor the soft glow of early autumn evenings.
As the summer transitions to autumn, September in Sandanski, Bulgaria brings a gentle breeze, with an average wind speed of 1.4 m/s (3 mph). This slight decrease in wind speed compared to the warmer months reflects the calming shift of the season, as nature begins to prepare for the cooler days ahead. Notably, the winds have steadily declined since May, where they were consistently at 1.6 m/s, and the trend continues into October with an even softer whisper of wind at 1.3 m/s. This gradual reduction creates a serene atmosphere, perfect for enjoying the picturesque landscapes and vibrant autumn foliage that Sandanski has to offer.
Weather in Sandanski varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sandanski, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January showcase stark contrasts in weather conditions. In September, temperatures range from a cool 2°C (35°F) to a warm 33°C (92°F), with an average of 19°C (67°F) and relatively low precipitation of 32 mm (1.3 in) over just four days. Humidity sits at a moderate 57%, making it a pleasant month for outdoor activities. In contrast, January brings much colder temperatures, with a minimum of -19°C (-2°F) and a maximum of only 14°C (57°F), averaging around 2°C (35°F). This winter month experiences significantly higher precipitation, totaling 68 mm (2.7 in) spread over nine days, and a notable increase in humidity at 88%, leading to a much colder and damp atmosphere. For more details, visit Sandanski weather in January.
September typically showcases a warmer climate with temperatures ranging from a mild 2°C (35°F) to a peak of 33°C (92°F), resulting in an average of 19°C (67°F). It experiences less rainfall, totaling 32 mm (1.3 in) over just 4 days and maintaining a moderate humidity level of 57%. In contrast, February brings much colder conditions, with temperatures dipping as low as -17°C (1°F) and averaging just 5°C (41°F). This month sees more precipitation at 64 mm (2.5 in) spread over 10 days, accompanied by higher humidity at 83%. For those interested in the specifics of February's weather, you can find more information here: Sandanski weather in February.
September and March present stark contrasts in weather conditions. In September, temperatures range from a pleasant 19°C (67°F) on average, with highs reaching up to 33°C (92°F), making it a warm and generally dry month with only 32 mm (1.3 in) of precipitation over four days and a humidity level of 57%. In contrast, March offers a much cooler climate, with temperatures average around 7°C (45°F) and a maximum of 22°C (71°F), while lows can plunge to -13°C (8°F). March is also notably wetter, receiving 92 mm (3.6 in) of precipitation over 13 days and a higher humidity of 81%. For more detailed information, you can check Sandanski weather in March.
September and April exhibit contrasting weather conditions, reflecting the transition from summer to autumn and the onset of spring, respectively. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 33°C (92°F), with an average of 19°C (67°F), and the month typically sees 32 mm (1.3 in) of precipitation over just 4 days, resulting in a relatively comfortable humidity level of 57%. In comparison, April features cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 26°C (78°F), averaging around 12°C (53°F). This month is wetter, producing 69 mm (2.7 in) of rain over 10 days, and exhibits higher humidity at 71%. For more detailed insights into the weather, check out Sandanski weather in April.
When comparing the weather in September and May, September tends to be warmer overall, with average temperatures reaching 19°C (67°F) and highs that can soar up to 33°C (92°F). In contrast, May's average temperature is slightly lower at 17°C (62°F), with a maximum of 30°C (86°F). However, May experiences significantly more rainfall, with 73 mm (2.9 in) of precipitation over 11 days, compared to September’s 32 mm (1.3 in) spread over just 4 days. Additionally, May has higher humidity levels at 74%, while September's humidity averages around 57%. For those interested in exploring the specifics, you can check Sandanski weather in May for more detailed information.
In comparing the weather between September and June, we see distinct differences in temperature and precipitation patterns. September experiences a wider temperature range with a minimum of 2°C (35°F) and a maximum of 33°C (92°F), while June has milder temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 35°C (96°F). Although June has a slightly higher average temperature (20°C or 69°F) compared to September's 19°C (67°F), it also sees more rainfall, with 70 mm (2.8 in) over 15 days, compared to September's 32 mm (1.3 in) over just 4 days. Furthermore, June is characterized by slightly higher humidity (63%) than September (57%). For a more detailed look at June's weather, you can check Sandanski weather in June.
In comparing the weather of September and July, notable differences emerge. September experiences milder temperatures, with a minimum of 2°C (35°F) and an average of 19°C (67°F), peaking at 33°C (92°F). In contrast, July is significantly warmer, boasting a minimum of 12°C (54°F) and an average of 23°C (74°F), reaching highs of 37°C (98°F). Additionally, July sees more precipitation, totaling 50 mm (2.0 in) over approximately seven days, compared to September's 32 mm (1.3 in) over four days. The humidity levels are slightly higher in July, at 60%, versus September's 57%. For more details on July's weather, you can check out Sandanski weather in July.
In comparing the weather of September to that of August, we observe a notable shift in temperature and humidity levels. September experiences a minimum temperature of 2°C (35°F) and an average of 19°C (67°F), which is significantly cooler than August's minimum of 9°C (49°F) and average of 24°C (75°F). Notably, August also reaches a higher maximum temperature of 38°C (100°F), compared to September's peak of 33°C (92°F). In terms of precipitation, September has similar rainfall, with 32 mm (1.3 in) over 4 days, slightly less than August's 31 mm (1.2 in) over 6 days. Additionally, September's humidity is higher at 57%, in contrast to August's 47%. For more detailed information on August weather, you can visit Sandanski weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 33°C (92°F), with an average temperature of 19°C (67°F) and relatively low precipitation of 32 mm (1.3 in) over just 4 days. Humidity is moderate at 57%. In contrast, October sees a drop in temperatures, with a minimum of 0°C (33°F) and a maximum of 27°C (81°F), resulting in an average of 13°C (57°F). Additionally, October experiences increased rainfall, totaling 56 mm (2.2 in) over 6 days, and higher humidity at 76%. For more detailed insights, check out Sandanski weather in October.
In comparing the weather of September and November, it's clear that a significant shift occurs as autumn progresses into winter. September boasts a warmer climate, with average temperatures reaching around 19°C (67°F) and maximums peaking at 33°C (92°F), alongside relatively low humidity levels at 57%. In contrast, November sees considerably cooler temperatures, with an average of 9°C (48°F) and nighttime lows dropping to -5°C (23°F). Additionally, November experiences increased precipitation, totaling 76 mm (3.0 in) over 10 days, compared to September's 32 mm (1.3 in) over just 4 days. This change in weather highlights the transition from the warmth of early autumn to the chill and dampness of late fall. For a more detailed look at November weather, you can visit Sandanski weather in November.
September's weather offers a warm farewell to summer, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 33°C (92°F) and an average of 19°C (67°F). The month experiences relatively low precipitation, totaling 32 mm (1.3 in) over just four days, and a comfortable humidity level of 57%. In contrast, December ushers in the chill of winter, with temperatures dipping to a minimum of -6°C (22°F) and averaging around 4°C (40°F), peaking at 14°C (58°F). This month is considerably wetter, with precipitation reaching 111 mm (4.4 in) over 12 days, alongside a higher humidity level of 87%. For more details, check out Sandanski weather in December.
As summer transitions into autumn, September in Sandanski offers a delightful mix of warm days and cooler nights, setting it apart from the peak summer months. With an average temperature that leans towards a comfortable 19°C, this month provides a reprieve from the heat, ideal for outdoor activities. Occasional rainfall, with precipitation spread over just a few days, contributes to a lush landscape without overwhelming the sunshine. With humidity levels moderate at 57%, the air remains fresh, making September a perfect time to explore the natural beauty of this region. For a deeper dive into Sandanski's climate trends, check out Sandanski Climate.