Last updated: August 27, 2025
In September, Slanic, Romania, experiences a diverse range of weather, characterized by a maximum temperature reaching 31°C (88°F), while the average hovers around a comfortable 15°C (60°F). With a minimum temperature dipping to -2°C (28°F), the month showcases the region's transition from summer to autumn. Rainfall is moderate, with a total of 44 mm (1.7 in) spread across 7 days, contributing to a humidity level of 57%. This blend of temperatures and precipitation creates a unique atmosphere, ideal for embracing the natural beauty of Slanic during this vibrant month.
In September, Slanic, Romania, transitions from the warmth of summer to the crispness of autumn, showcasing a compelling range of temperatures. The month opens with minimums dipping to -2°C (28°F), hinting at the approaching chill, while average temperatures settle at a comfortable 15°C (60°F). The warmth still lingers, with highs reaching up to 31°C (88°F), providing ample opportunities for outdoor activities against the backdrop of changing leaves. This blend of cool nights and pleasantly warm days captures the essence of early fall, making September a delightful time to experience the region’s natural beauty and vibrant landscapes. As the month progresses, these temperatures signal a gradual shift towards the colder months ahead, creating a perfect balance that invites both relaxation and exploration.
September in Slanic, Romania, marks a transition into early autumn, characterized by a modest precipitation total of 44 mm (1.7 in) across approximately 7 days. This dip in rainfall follows the peak wet months of June and July, which recorded significantly higher precipitation, with 165 mm (6.5 in) and 141 mm (5.6 in), respectively. As summer fades, September's rainfall aligns more closely with the milder levels seen in January and February, indicating a seasonal shift. While it may not be heavily rain-soaked, the gentle precipitation serves to refresh the landscapes as nature prepares for the cooler months ahead. This pattern exemplifies a gradual reduction in rainfall, a trend that is further echoed in October when precipitation rises again to 67 mm (2.6 in).
In September, humidity in Slanic, Romania experiences a noticeable shift, averaging 57% as summer transitions into autumn. This figure reflects a modest increase from August's 48%, marking the end of the drier months. As the year progresses, September’s humidity stands significantly lower than the annual highs seen in winter, where levels peak around 88% in both January and December. The gradual uptick in humidity signals the encroaching cooler weather, foreshadowing the return of more humid conditions in the following months. Overall, September serves as a bridge between the warm, dry summer and the cooler, wetter autumn, establishing a refreshing balance in Slanic’s climatological rhythm.
In September, Slanic, Romania experiences a UV Index of 7, falling into the high exposure category, which indicates that sun protection is important for extended outdoor activities. As the summer months fade, UV levels decrease from the intense highs of June and July, where the index reached a peak of 9. This month’s index allows for a longer burn time of 25 minutes, a notable increase from the swift burn times of 15 minutes in the peak summer months. As autumn approaches, it’s crucial to remain mindful of sun safety, particularly during midday hours. Discover more about the UV Index trends in this charming locale at Slanic UV Index.
UV Risk Categories
As summer begins to wane, September in Slanic, Romania, offers a delightful transition from the sun-drenched days of July and August, which both basked in over 400 hours of sunshine. With 342 hours of sunlight gracing the month, September remains a vibrant time to bask in the lingering warmth of late summer. This amount is notably less than the peak summer months, yet it still outshines the dimming sunlight of October, which dips to 290 hours. As autumn approaches, this gentle reduction in daylight doesn't diminish the outdoor charm of Slanic, inviting visitors to enjoy the crisp, sunny days as the landscape begins to shift into its fall attire.
In September, Slanic, Romania, enjoys a 50% chance of sunny weather, marking a significant improvement from the earlier months of the year. This increase in sunshine follows the brighter summer months of July and August, which boast 58% and 57% chances of sun, respectively. As the warm days begin to cool down, September offers a delightful balance of sun and mild temperatures, making it an inviting time for outdoor activities. While October dips to 42%, September stands out as one of the more favorable months for enjoying the sun, highlighting a trend of transitioning from the vibrant summer to the crispness of fall.
As summer bids farewell and autumn begins to settle in Slanic, Romania, the daylight duration in September reflects a pleasant transition, offering 12 hours of light—an inviting blend of warmth and coolness. This month marks a noticeable decline from the sun-drenched days of July and June, which basked in 15 hours of daylight, yet it still provides ample sunshine compared to the leaner months ahead. After the exuberance of summer, September serves as a gentle reminder of nature’s rhythms, and as the days grow shorter, one can appreciate the rich tapestry of colors as leaves begin to turn, creating a picturesque scene that welcomes the change of seasons.
In September, the winds in Slanic, Romania, exhibit a gentle demeanor, with an average speed of 1.9 m/s (4 mph), slightly below the summer breezes. This marks a subtle transition from the warmer months, where the winds reached a peak of 2.3 m/s (5 mph) in May. As autumn approaches, wind speeds tend to stabilize, averaging around 2.0 m/s (4 mph) in the subsequent months, creating a serene atmosphere perfect for enjoying the changing colors of fall. Overall, the wind patterns reveal a seasonal ebb and flow, capturing the essence of September's tranquil yet refreshing character.
Weather in Slanic varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Slanic, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures range from a chilly minimum of -2°C (28°F) to a warm maximum of 31°C (88°F), averaging around 15°C (60°F). The month sees about 44 mm (1.7 in) of precipitation over approximately 7 days, with humidity levels at 57%. In stark comparison, January experiences a much colder climate, with temperatures dipping as low as -22°C (-7°F) and only reaching a maximum of 11°C (52°F), averaging around -2°C (28°F). Precipitation in January totals 40 mm (1.6 in) spread over 6 days, accompanied by a significantly higher humidity level of 88%. For more detailed information, you can check out Slanic weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a chilly -2°C (28°F) at night to a warm 31°C (88°F) during the day, with an average of 15°C (60°F). The month sees a moderate amount of precipitation, totaling 44 mm (1.7 in) over 7 days, accompanied by a comfortable humidity level of 57%. On the other hand, February is much colder, featuring minimum temperatures of -14°C (7°F) and a daily high reaching only 16°C (62°F), with an average temperature around 0°C (32°F). Despite having a similar total precipitation of 44 mm (1.7 in), February experiences slightly more rainy days at 8, and higher humidity at 85%. For more detailed information about February weather, you can check Slanic weather in February.
September and March exhibit contrasting weather patterns, showcasing the transition from late summer to early spring. In September, temperatures range from a brisk -2°C (28°F) at night to a pleasant 31°C (88°F) during the day, with an average of 15°C (60°F). Precipitation is relatively low at 44 mm (1.7 in) over about 7 days, accompanied by a moderate humidity of 57%. In stark contrast, March features much colder conditions, with temperatures dipping as low as -14°C (8°F) and peaking at 20°C (69°F), averaging just 3°C (38°F). The month sees higher precipitation levels of 59 mm (2.3 in) spread over 11 days and significantly increased humidity at 82%. This stark difference highlights the shift in seasons, as winter gives way to spring. For more detailed information, you can check Slanic weather in March.
September and April present quite different weather experiences. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 31°C (88°F), with an average of 15°C (60°F). This month sees less rainfall, totaling 44 mm (1.7 in) over about 7 days, and a humidity level of 57%. In contrast, April is generally cooler, with temperatures varying from a minimum of -9°C (16°F) to a maximum of 25°C (77°F), averaging at 8°C (47°F). It also tends to be wetter, with precipitation reaching 62 mm (2.4 in) spread over 10 days, and higher humidity at 73%. For more detailed information, you can check out Slanic weather in April.
When comparing the weather in September and May, notable differences emerge. September boasts a broader temperature range, with minimums around -2°C (28°F) and maximums reaching 31°C (88°F), contributing to an average temperature of 15°C (60°F). In contrast, May has milder values, with temperatures ranging from 0°C (33°F) to a maximum of 26°C (80°F) and an average of 13°C (56°F). Additionally, May experiences significantly more rainfall, totaling 111 mm (4.4 in) over 17 days, compared to September’s 44 mm (1.7 in) over just 7 days. The humidity is also higher in May at 71%, compared to 57% in September, highlighting the contrasting atmospheres of the two months. For more specific details on May weather, visit Slanic weather in May.
When comparing the weather in September and June, we observe notable differences in temperature and precipitation. September tends to have a wider temperature range, with minimums dropping to -2°C (28°F), average temperatures around 15°C (60°F), and highs reaching up to 31°C (88°F). In contrast, June brings milder conditions, with minimums at 3°C (38°F), averages around 18°C (64°F), and maximums peaking at 30°C (87°F).
Precipitation is significantly higher in June, totaling 165 mm (6.5 in) over 21 days, compared to September's 44 mm (1.7 in) across just 7 days. This leads to a higher humidity level in June at 70%, compared to September's 57%. For more detailed insights, you can check out Slanic weather in June.
In comparing the weather of September and July, we notice some distinct differences. September experiences a broader temperature range, with minimums dropping to -2°C (28°F) and maximums reaching 31°C (88°F), while July's temperatures are milder, ranging from 8°C (47°F) to 31°C (89°F). Precipitation in September is significantly lower at 44 mm (1.7 in) over just 7 days, in contrast to July's 141 mm (5.6 in) spread across 19 days, indicating that July tends to be much wetter. Additionally, humidity levels are higher in July at 66%, compared to September's 57%. For more detailed insights into July's weather, visit Slanic weather in July.
In comparing the weather between September and August, a noticeable shift occurs in temperature and precipitation levels. September experiences a broader range of temperatures, with a minimum of -2°C (28°F) and a maximum reaching 31°C (88°F), averaging around 15°C (60°F). This month also sees lower humidity levels at 57%, despite having some cooler days. In contrast, August maintains milder conditions with a minimum of 7°C (45°F) and a maximum of 33°C (92°F), averaging 20°C (68°F), and higher humidity at 48%. Precipitation is significantly greater in August, totaling 91 mm (3.6 in) over 13 days, compared to September's 44 mm (1.7 in) over just 7 days. For more details on the weather during August, you can visit Slanic weather in August.
September and October display a notable shift in weather patterns. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 31°C (88°F), with an average of 15°C (60°F). The month sees a moderate amount of precipitation totaling 44 mm (1.7 in) over 7 days and a humidity level of 57%. Conversely, October brings cooler conditions with temperatures dipping further, showcasing a minimum of -3°C (27°F) and a maximum of 24°C (76°F), accompanied by an average temperature of 10°C (50°F). Additionally, October experiences increased precipitation of 67 mm (2.6 in) over 8 days and higher humidity at 79%. This transition marks a clear move from the warmth of late summer into the chill of autumn. For more details on the weather specific to October, visit Slanic weather in October.
September and November exhibit distinct differences in weather patterns. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 31°C (88°F), with a pleasant average of 15°C (60°F). The month experiences relatively low precipitation of 44 mm (1.7 in) over about 7 days, contributing to a moderate humidity level of 57%. In contrast, November brings a notable drop in temperatures, with a minimum of -9°C (17°F) and an average of just 5°C (41°F), though highs can still reach up to 23°C (74°F). The precipitation increases slightly to 47 mm (1.9 in) across 10 days, and humidity rises significantly to 87%. For more details on the weather conditions during this month, you can visit Slanic weather in November.
September and December present starkly contrasting weather conditions. In September, temperatures range from a chilly -2°C (28°F) at the lowest to a warm 31°C (88°F) at the highest, with an average of 15°C (60°F). The month sees an average of 44 mm (1.7 in) of precipitation over about 7 days, and humidity levels are moderate at 57%. In contrast, December experiences a much colder climate, with temperatures dipping as low as -14°C (7°F) and averaging around 0°C (33°F). The highest December temperature reaches only 13°C (55°F), and the month has a significant increase in precipitation, totaling 80 mm (3.1 in) over 11 days, accompanied by a higher humidity level of 88%. For more detailed insights into December weather, visit Slanic weather in December.
As September unfolds in Slanic, the weather showcases a gentle transition from the heat of summer to the cool embrace of autumn. This month is characterized by comfortable daytime temperatures, especially when compared to the sizzling peaks of July and August. Nighttime brings a refreshing chill, hinting at the approaching winter, while the relatively low humidity keeps the air crisp and enjoyable. Although there are several rainy days, the total precipitation is moderate, ensuring that the lush landscapes remain vibrant without overwhelming downpours. For a more comprehensive understanding of Slanic's atmospheric patterns, explore the detailed insights at Slanic Climate.