Last updated: August 27, 2025
September in Slanic, Romania brings a delightful blend of warm days and cool nights. With maximum temperatures reaching 29°C (85°F) and a comfortable average of 14°C (58°F), this month offers ideal conditions for outdoor explorations. However, be prepared for cooler evenings, as temperatures can dip to a minimum of -3°C (26°F). Rainfall is moderate, totaling 44 mm (1.7 in) over 8 days, while humidity hovers around 58%, creating a refreshing ambiance. Whether you’re wandering through the lush landscapes or enjoying local attractions, September in Slanic promises a charming experience.
As September rolls into Slanic, Romania, temperatures begin to shift, marking a transition from the warmth of summer to the cooler embrace of autumn. With minimums dipping to -3°C (26°F) and an average rise to a pleasant 14°C (58°F), the month offers a refreshing respite from the heat of August. Daytime highs can still reach a comfortable 29°C (85°F), making it an ideal time for outdoor exploration amidst picturesque landscapes. This gradual decline in temperature is a precursor to the crisp, invigorating air of fall, enticing visitors to experience Slanic's natural beauty in a more temperate setting. As the leaves start to change, the landscape transforms into a vibrant autumn tapestry, inviting all to savor the season's charm.
In September, Slanic, Romania experiences a noticeable shift in precipitation patterns, with a total of 44 mm (1.7 in) of rainfall spread over 8 days. This marks a decrease from the wetter summer months of June and July, where rainfall peaked at 155 mm (6.1 in) and 121 mm (4.8 in), respectively. As autumn begins to set in, September's rainfall serves as a gentle transition, contrasting sharply with the heavy downpours of May, which recorded 142 mm (5.6 in). The modest precipitation in September not only reflects the gradual drying trend but also paves the way for the colder months ahead, where averages rise again in October with 64 mm (2.5 in) expected. This cyclical shift showcases Slanic's dynamic climate as it moves towards a more temperate and varied weather pattern.
As summer transitions into autumn, September in Slanic, Romania experiences a notable shift in humidity levels, with an average of 58%. This marks a slight increase from the drier months of July and August, which recorded 65% and 51%, respectively. The gradual rise in moisture indicates the onset of fall, while still remaining relatively comfortable compared to the higher humidity levels found in the winter months—91% in January and 90% in December. This moderate humidity can create a pleasant atmosphere, perfect for enjoying the changing colors of the landscape as nature prepares for the colder season ahead.
As summer transitions to autumn in Slanic, Romania, September brings a noticeable shift in the UV Index, registering a 7, classified as high, with a burn time of 25 minutes. This marks a decline from the peak of 9 seen in the previous months of July and August, which also had a very high exposure category and required only 15 minutes for skin to burn. However, September’s high rating still necessitates caution, particularly for those planning outdoor activities. This pattern reflects a gradual decrease in solar intensity as the year progresses, offering an opportunity to enjoy milder weather while remaining vigilant about UV exposure. For more details on staying safe under the sun, visit Slanic UV Index.
UV Risk Categories
September in Slanic, Romania, is a beautiful transition into autumn, with 335 hours of sunshine, a delightful carryover from the vibrant summer months. The sun-drenched days of July and June, which boast 416 and 397 hours respectively, gradually taper off, yet September still holds its charm as it enjoys a significant amount of sunlight compared to the gloomier winter months that follow. As the year progresses into October, the hours of sunshine drop to 281, highlighting September's role as a bridge between the long, warm summer days and the cooler, shorter days ahead. This month provides an ideal opportunity to savor the last remnants of summer while the landscape begins to transform into the rich hues of autumn.
In Slanic, Romania, September offers a promising opportunity for sunny days, with a 49% chance of sunshine. This marks a noticeable shift from the earlier months of the year, where the probability of sunny weather remains on the lower side, hovering around only 21% in January. As summer peaks in July and August with 55% and 57%, respectively, September maintains a favorable balance, capturing the lingering warmth of summer while also transitioning into autumn. With the chances of sun in September higher than many months before, it is an ideal time for outdoor activities and enjoying the natural beauty of the region.
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.
As September sweeps into Slanic, Romania, the gentle caress of the wind is felt with an average speed of 1.7 m/s (4 mph). This slight decline from the summer months suggests a transition toward the cooler, calmer days of autumn. Notably, the wind speeds have maintained a consistent range throughout the year, with the highest average recorded in March and May at 2.1 m/s. As the leaves begin to turn, September's mild breezes offer a serene backdrop to the changing landscape, heralding the cozy days ahead while inviting residents and visitors alike to embrace the tranquil ambiance of early fall.
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.
In September, temperatures range from a chilly minimum of -3°C (26°F) to a warm average of 14°C (58°F), peaking at a comfortable 29°C (85°F). The month experiences moderate precipitation of 44 mm (1.7 in) over about 8 days, with a humidity level of 58%. In stark contrast, January brings much colder conditions, with temperatures plunging to a minimum of -20°C (-5°F) and averaging -3°C (26°F), topping out at just 10°C (50°F). Precipitation levels are slightly lower at 42 mm (1.6 in), occurring over 6 days, while humidity increases significantly to 91%. For more details on this stark winter climate, visit Slanic weather in January.
September and February present quite contrasting weather patterns. In September, temperatures range from a crisp -3°C (26°F) at night to a warm 29°C (85°F) during the day, with an average of 14°C (58°F). Although there is moderate precipitation of 44 mm (1.7 in) over 8 days, the humidity remains relatively moderate at 58%. In contrast, February brings much colder conditions, with nighttime lows plunging to -18°C (0°F) and daytime highs only reaching 17°C (63°F), yielding an average temperature of -1°C (31°F). Precipitation slightly increases to 45 mm (1.8 in), also over 8 days, but humidity swells to a chilly 86%. For more specifics on February’s weather, you can explore Slanic weather in February.
September and March present strikingly different weather characteristics. In September, temperatures range from a chilly minimum of -3°C (26°F) to a warm maximum of 29°C (85°F), with an average temperature of 14°C (58°F). The month sees relatively moderate precipitation of 44 mm (1.7 in) over 8 days and humidity levels around 58%. In contrast, March experiences a broader temperature range, with minimums dropping to -17°C (2°F) and maximums reaching 20°C (69°F). The average temperature is significantly lower at 2°C (37°F), accompanied by increased precipitation of 66 mm (2.6 in) over 12 days and higher humidity of 83%. For those interested in more details about the weather in March, you can check Slanic weather in March.
September and April present distinct differences in weather patterns. In September, temperatures range from a chilly minimum of -3°C (26°F) to a warm maximum of 29°C (85°F), with an average of 14°C (58°F). The month sees relatively moderate precipitation at 44 mm (1.7 in) over 8 days, with humidity around 58%. In contrast, April is generally cooler, featuring a minimum of -11°C (12°F) and a maximum of 23°C (74°F), leading to a lower average of 7°C (45°F). While April experiences slightly higher precipitation at 57 mm (2.2 in) across 10 days, it is characterized by increased humidity at 74%. For more detailed information about the weather during this month, check out Slanic weather in April.
September and May exhibit notable differences in weather patterns. September boasts a wider temperature range with minimums around -3°C (26°F) and maximums reaching 29°C (85°F), while May presents milder temperatures, with minimums at -1°C (31°F) and maximums of 25°C (77°F). Precipitation is significantly higher in May, totaling 142 mm (5.6 in) over 20 days compared to September's 44 mm (1.7 in) over just 8 days. Additionally, May is more humid, with a humidity level of 70% compared to September's 58%. For a more detailed look at May weather, you can visit Slanic weather in May.
In comparing the weather between September and June, September tends to be cooler with average temperatures around 14°C (58°F) and a maximum of 29°C (85°F), whereas June showcases slightly warmer averages at 16°C (62°F) and can also peak at 30°C (85°F). Precipitation levels tell a different story; September sees about 44 mm (1.7 in) of rain over 8 days, while June is significantly wetter, with 155 mm (6.1 in) falling over 22 days. Additionally, humidity is higher in June at 67% compared to 58% in September. For a more detailed look at June weather patterns, you can visit Slanic weather in June.
When comparing the weather in July and September, notable differences emerge. In July, temperatures range from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F). This month experiences significantly higher precipitation, totaling 121 mm (4.8 in) over 17 days, alongside humidity levels of 65%. Conversely, September sees a wider temperature range, with lows dropping to -3°C (26°F) and averages around 14°C (58°F), while still reaching a high of 29°C (85°F). Precipitation in September is much lower at 44 mm (1.7 in) over just 8 days, and humidity drops to 58%. For a closer look at July's climate specifics, visit Slanic weather in July.
In comparing the weather of September and August, September tends to be cooler with a minimum temperature of -3°C (26°F) and an average of 14°C (58°F), while August experiences milder conditions with temperatures ranging from a minimum of 6°C (42°F) to an average of 19°C (66°F). August also boasts a higher maximum temperature of 32°C (89°F) compared to September's peak of 29°C (85°F). Precipitation levels reveal a notable difference as well, with August receiving 102 mm (4.0 in) over 13 days, significantly more than September's 44 mm (1.7 in) across just 8 days. Interestingly, September has a slightly higher humidity level at 58% compared to August's 51%. For a more detailed look, you can check Slanic weather in August.
September and October exhibit distinct differences in weather patterns. In September, temperatures range from a minimum of -3°C (26°F) to a maximum of 29°C (85°F), with an average of 14°C (58°F). The month sees 44 mm (1.7 in) of precipitation over 8 days and a relative humidity of 58%. Conversely, October experiences cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 24°C (75°F), averaging 9°C (48°F). Precipitation increases to 64 mm (2.5 in) across the same number of rainy days, accompanied by a higher humidity level of 80%. This shift marks a transition into a typically wetter and cooler autumn. For more specifics on the conditions, check out Slanic weather in October.
In September, the weather is relatively warmer with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 29°C (85°F), resulting in an average of 14°C (58°F). The month experiences moderate precipitation of 44 mm (1.7 in) over 8 days and has a comfortable humidity level of 58%. In contrast, November sees a significant drop in temperatures, with a minimum of -8°C (18°F) and a lower average of 4°C (40°F), while still reaching a pleasant high of 22°C (71°F). Precipitation increases slightly to 47 mm (1.9 in) over 10 days, and humidity rises substantially to 88%, contributing to a much cooler and damper atmosphere. For a detailed look at conditions during this month, visit Slanic weather in November.
September and December present a stark contrast in weather conditions. In September, temperatures range from a mild minimum of -3°C (26°F) to a maximum of 29°C (85°F), with an average of 14°C (58°F). The month experiences moderate precipitation of 44 mm (1.7 in) over about 8 days, coupled with a humidity level of 58%. In contrast, December is characterized by much colder temperatures, with a minimum of -16°C (4°F) and a maximum of 13°C (55°F), averaging around 0°C (32°F). This winter month sees increased precipitation of 80 mm (3.1 in) over approximately 11 days and higher humidity levels at 90%. For more detailed information, check out Slanic weather in December.
As September draws to a close, Slanic experiences a notable transition in its weather patterns, blending the last whispers of summer warmth with the crispness of approaching autumn. Days are pleasantly warm, reaching a maximum of 29°C (85°F), while nights dip to a refreshing 14°C (58°F), reflecting the shift from a sweltering summer. This month also sees an increase in precipitation, with around 44 mm (1.7 in) falling over approximately 8 days, bringing a refreshing humidity of 58% that enhances the earthy scents of the landscape. This combination of warmth and increased moisture sets September apart, making it a unique time to experience Slanic’s breathtaking natural beauty. For a deeper insight into the region's climate nuances, explore Slanic Climate.