Last updated: August 27, 2025
September in Bovec, Slovenia offers a diverse weather experience, with temperatures ranging from a pleasant maximum of 27°C (81°F) to a refreshing minimum of 2°C (35°F), resulting in an average temperature of 15°C (60°F). Visitors should be prepared for the possibility of rain, as the area receives about 161 mm (6.3 in) of precipitation over 15 days, contributing to the region's lush landscapes. The humidity level hovers around 74%, adding a touch of freshness to the crisp autumn air. Whether you are trekking through scenic trails or enjoying local cuisine, September in Bovec promises a unique blend of comfort and adventure.
In September, Bovec, Slovenia, begins to transition from the warmth of summer to the cooler embrace of autumn. The temperatures range from a comfortable minimum of 2°C (35°F) to a pleasant maximum of 27°C (81°F), offering a delightful average of 15°C (60°F). This month is marked by a gradual decrease in heat compared to the peak summer months, yet it retains enough warmth for outdoor adventures. As the evenings grow cooler, the vibrant landscape starts to shift with the onset of fall, making September an ideal time for scenic hikes and enjoying the stunning alpine views. Overall, this month balances warmth and coolness, inviting visitors to relish the crisp air while soaking in the beauty of Bovec’s natural surroundings.
September in Bovec, Slovenia, is marked by a significant presence of precipitation, totaling 161 mm (6.3 in), which aligns with the region's lush and vibrant natural scenery. The month experiences about 15 rainy days, consistently reflecting the late summer's transition into autumn. Compared to the preceding months, September's rainfall mirrors that of April, highlighting a shift in weather patterns as regions prepare for the cooler months ahead. This amount of rain not only sustains the area's striking landscapes but also sets the stage for the stunning fall foliage that Bovec is known for, making it a remarkable time for both nature enthusiasts and cultural explorers.
As summer transitions into autumn, September in Bovec, Slovenia, showcases a notable fluctuation in humidity, resting at 74%. This figure maintains the slight increase seen in the preceding months, particularly when compared to the more humid summer, where August dipped to 68%. Generally, Bovec experiences its most humid months in the winter, peaking in January at 91%, while the late summer to early autumn period, including September, presents a gentle decline from the warmer months. As the year progresses, humidity levels begin to rise again, anticipating the cooler October, which will see humidity soar back to 88%. This rhythmic ebb and flow of moisture underscores Bovec's alpine climate, creating a rich tapestry of seasonal change.
September in Bovec, Slovenia, marks a transition as summer fades, reflected in the high UV Index of 7. This rating indicates a moderate threat of harm from unprotected sun exposure, with a burn time of approximately 25 minutes for those sensitive to UV rays. Compared to the peak summer months of June and July, where the UV Index reached a maximum of 9, September provides a slightly more forgiving environment while still demanding caution. As days become shorter and temperatures drop, sun protection remains essential, especially during outdoor activities. For more insights, check out the detailed Bovec UV Index guide.
UV Risk Categories
As summer transitions into autumn, September in Bovec, Slovenia, enjoys a delightful 305 hours of sunshine—a radiant farewell to the warm months. Following the peak of July with its impressive 409 hours of sunlight, the days in September still bask in ample light, although there's a notable decrease as the region begins to cool. This gradual decline is also reflected in the preceding months, where June and August offered lush days, clocking in at 395 and 377 hours, respectively. Yet, September strikes a perfect balance, providing enough sunshine for outdoor adventures amidst the vibrant foliage, while hinting at the cosy delights of October, which sees a further drop to 268 hours. As Bovec transitions into autumn, the sunny days serve as a gentle reminder of summer’s warmth, paving the way for the stunning colours and crisp air of the upcoming season.
As summer transitions to autumn, September in Bovec, Slovenia, offers a moderately promising chance for sunny weather, with about 46% likelihood of clear skies. This marks a slight increase from the summer months of July and August, which hover around 45% and 48% respectively. While the chance of sunshine dips compared to the peak of spring in March, when it reaches 56%, September maintains a competitive edge over the months that follow. With the days still long and the natural beauty of the landscape vibrant, this transitional month provides an ideal backdrop for both outdoor adventures and relaxation amid the stunning backdrop of the Julian Alps.
As summer fades into early autumn in Bovec, Slovenia, daylight hours gradually diminish, with September offering approximately 12 hours of daylight. This shows a notable decline from the sun-soaked days of summer, where June and July bask in 15 hours of light. The transition into fall is marked by shorter days, yet September still maintains a pleasant glow, outshining the dwindling daylight of October and the approaching chill of winter months. The steady drop from the 14 hours in August sets the tone for the seasonal shift, creating a picturesque backdrop for outdoor adventures amidst the changing foliage.
As summer gives way to autumn in Bovec, Slovenia, September brings a gentle caress of wind, with an average speed of 1.4 m/s (3 mph) that mirrors the tranquil transition of the season. This month tends to be quieter compared to the brisker winds of October and November, which both see an uptick to 1.9 m/s (4 mph). The overall trend reveals a gradual increase in wind speed as the year progresses, with April and July standing out with average speeds of 1.7 m/s and 1.6 m/s (4 mph) respectively. This ebb and flow of the wind not only reflects the changing seasons but also enhances the charm of Bovec, making it an idyllic spot for those who appreciate nature's subtle nuances.
Weather in Bovec varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Bovec, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 2°C (35°F) at night to a warm 27°C (81°F) during the day, with an average of 15°C (60°F). This month also experiences considerable rainfall, totaling 161 mm (6.3 in) over about 15 days, alongside a humidity level of 74%. In contrast, January is much colder, featuring temperatures that dip as low as -12°C (10°F) at night and reach a maximum of 10°C (49°F), with an average temperature of -1°C (31°F). Precipitation in January is less frequent, falling to 66 mm (2.6 in) over just 6 days, but the humidity rises to a significant 91%. For more detailed insights into January weather in this region, check out Bovec weather in January.
September and February present stark contrasts in weather patterns. September boasts a range of temperatures from a chilly 2°C (35°F) at night to a warm 27°C (81°F) during the day, accompanied by an average of 15°C (60°F), making it a more pleasant month overall. In contrast, February experiences much colder conditions, with temperatures dipping as low as -17°C (2°F) at night and averaging just 2°C (36°F) during the day. Additionally, while September sees significant rainfall, totaling 161 mm (6.3 in) over 15 days, February has comparatively less precipitation at 130 mm (5.1 in) across 9 days. The humidity levels also differ, with February being slightly more humid at 87% compared to September's 74%. For more detailed information, you can check Bovec weather in February.
September and March offer quite contrasting weather experiences. In September, temperatures range from a pleasant 2°C (35°F) at night to a warm 27°C (81°F) during the day, with an average of 15°C (60°F). This month sees about 161 mm (6.3 in) of precipitation over 15 days and a relative humidity of 74%. In contrast, March tends to be much colder, with temperatures dipping as low as -17°C (2°F) while peaking at 21°C (70°F), and an average of just 5°C (41°F). Precipitation is somewhat less at 118 mm (4.7 in) over 11 days, though humidity is slightly higher at 82%. For more specifics on this chilly month, you can check Bovec weather in March.
When comparing the weather in September and April, one can note some significant differences. September typically enjoys milder temperatures, with averages around 15°C (60°F) and highs reaching 27°C (81°F), whereas April's temperatures are generally cooler, averaging about 9°C (49°F) with a maximum of 25°C (78°F). Despite both months receiving similar amounts of precipitation at 161 mm (6.3 in), September tends to experience rain over 15 days, slightly more frequent than April's 13 days. Additionally, humidity in April reaches a higher level at 79%, compared to September's 74%. For more detailed insights, you can check out Bovec weather in April.
When comparing the weather in September and May, both months exhibit relatively mild temperatures, but September tends to be warmer overall. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), with an average of 15°C (60°F). In contrast, May has slightly cooler temperatures, with a minimum of 1°C (33°F) and a maximum of 25°C (77°F), averaging 13°C (56°F). However, May experiences more precipitation, totaling 219 mm (8.6 in) over 22 days, compared to September's 161 mm (6.3 in) across 15 days. Despite their differences, both months maintain a consistent humidity level of 74%. For more detailed insights, you can visit Bovec weather in May.
In comparing the weather of September and June, we can see distinct differences in temperature and precipitation. September has cooler temperatures with a minimum of 2°C (35°F), an average of 15°C (60°F), and a maximum of 27°C (81°F). In contrast, June experiences warmer conditions, starting with a minimum of 5°C (41°F), an average of 19°C (66°F), and peaking at 34°C (93°F). Precipitation levels are also notable; September sees 161 mm (6.3 in) of rainfall over 15 days, whereas June has slightly less at 134 mm (5.3 in) over the same number of days. Humidity remains fairly similar between the two months, with September at 74% and June at 75%. For a more detailed look at the weather trends, you can check out Bovec weather in June.
When comparing the weather in July and September, July typically offers warmer temperatures, with a minimum of 11°C (51°F) and an average of 20°C (68°F), reaching up to 31°C (88°F). In contrast, September starts cooler, with a minimum of 2°C (35°F) and an average of 15°C (60°F), peaking at 27°C (81°F). Both months experience significant rainfall, but September has a higher total precipitation of 161 mm (6.3 in) across 15 days compared to July's 123 mm (4.9 in) over 16 days. Despite the increased rain in September, humidity levels remain consistent at 74% for both months. For more details, you can check Bovec weather in July.
In September, the weather begins to cool down compared to August, with a minimum temperature dropping to 2°C (35°F) and an average of 15°C (60°F), reflecting a significant shift from August's warmer minimum of 8°C (46°F) and an average of 20°C (69°F). The maximum temperatures in September also decrease to 27°C (81°F), down from 33°C (92°F) in August. Additionally, September experiences more rainfall, with a total precipitation of 161 mm (6.3 in) over 15 days, compared to August's 137 mm (5.4 in) within the same number of precipitation days. Humidity levels also rise slightly, with September at 74% versus August's 68%. For a closer look at August's climate specifics, you can visit Bovec weather in August.
In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), with an average of 15°C (60°F). The month experiences significant rainfall, totaling 161 mm (6.3 in) over 15 days, along with a humidity level of 74%. Conversely, October brings cooler temperatures, with a minimum of 0°C (33°F), an average of 11°C (51°F), and a maximum of 22°C (71°F). While the precipitation is slightly lower at 155 mm (6.1 in) over 10 days, humidity increases to 88%. For more detailed insights into October's weather, check out Bovec weather in October.
September and November present quite a contrast in weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 27°C (81°F) during the day, with an average of 15°C (60°F). The month also experiences considerable precipitation, totaling 161 mm (6.3 in) over 15 days, coupled with a humidity level of 74%.
In stark contrast, November sees a significant drop in temperatures, with nighttime lows plummeting to -8°C (18°F) and daytime highs peaking at 17°C (62°F), averaging only 6°C (43°F). The precipitation increases to 205 mm (8.1 in) over just 11 days, and the humidity rises to a notable 90%.
For those interested in detailed weather patterns, further information can be found at Bovec weather in November.
In September, the weather is noticeably warmer with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 27°C (81°F), averaging around 15°C (60°F). The month experiences significant precipitation of 161 mm (6.3 in) over 15 days, accompanied by a relatively comfortable humidity level of 74%. In contrast, December ushers in much colder conditions, with temperatures dipping to a minimum of -11°C (12°F) and only reaching a maximum of 11°C (53°F), averaging just 1°C (34°F). December is also slightly wetter, with 191 mm (7.5 in) of precipitation falling over 10 days, all while humidity climbs to a chilly 89%. For a detailed look at the December weather, you can visit Bovec weather in December.
As summer gracefully transitions into autumn, September in Bovec reveals a strikingly diverse weather palette. The days can still flirt with warm temperatures, often reaching up to 27°C (81°F), while evenings bring a refreshing chill, dipping down to around 2°C (35°F). This month experiences a notable increase in precipitation, leading to about half the days being marked by rain, providing a lush backdrop to the stunning scenery. The heightened humidity at 74% creates a unique atmosphere, making Bovec's natural beauty even more breathtaking. For a more comprehensive understanding of Bovec’s year-round climate trends, explore Bovec Climate.