September Weather in Stefan Cel Mare, Romania

Last updated: August 27, 2025

September in Stefan Cel Mare, Romania, presents a delightful transition from the warmth of summer to the crispness of fall. Highs can reach a balmy 32°C (89°F), while the average temperature settles comfortably at 16°C (61°F). However, as the month progresses, the thermometer can dip to a chilly -1°C (30°F), reminding residents of the impending autumn. Despite a relatively dry month, with only 35 mm (1.4 in) of rain over 7 days, humidity levels hover around 62%, lending a pleasant crispness to the air. This blend of warmth and coolness makes September an inviting time to explore the charming landscapes of Stefan Cel Mare.

September Temperature in Stefan Cel Mare

As September unfolds in Stefan Cel Mare, Romania, temperatures begin to transition from the warmth of summer to the crispness of autumn. The month presents a delightful average of 16°C (61°F), offering a comfortable backdrop for outdoor activities. Min temperatures dip to -1°C (30°F), while **max values reach a pleasant 32°C (89°F), showcasing the tail end of summer heat. This transitional period illustrates a significant decrease from August’s sweltering peak but still invites lingering sunshine and mild evenings. As the month progresses, locals and visitors alike can appreciate the growing chill and the vibrant hues of autumn that begin to emerge across the landscape.

September Weather in Stefan Cel Mare: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Stefan Cel Mare, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stefan Cel Mare, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec293439495966687061514134
Data source: Temperature data for Stefan Cel Mare generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Stefan Cel Mare

In September, Stefan Cel Mare experiences a moderate amount of precipitation, totaling 35 mm (1.4 in) over 7 days. This marks a noticeable decline from the summer months, where June peaked with its lush 134 mm (5.3 in). As summer transitions to autumn, rainfall becomes less frequent and intense, with September showing a shift to drier conditions compared to the previous month’s 52 mm (2.0 in). This gradual reduction in precipitation suggests a shift in climate patterns as the year progresses, paving the way for an increasingly crisp fall atmosphere. Overall, September continues the trend of seasonal variation, bridging the gap between the lushness of summer and the dryness of autumn.

September Precipitation Trends in Stefan Cel Mare

The chart displays monthly precipitation patterns in Stefan Cel Mare, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Stefan Cel Mare, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3141485067134905235403860
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Stefan Cel Mare

In September, humidity in Stefan Cel Mare, Romania, settles at a moderate 62%, marking a shift from the drier summer months. This slight increase from the low of 56% in August indicates the onset of autumn, as the air begins to retain more moisture. The trend over the year illustrates a gradual rise in humidity, peaking in the colder months of January and February where levels reach an impressive 92% and 88%, respectively. As the seasons change, residents experience a distinctive transition from the warmth of summer to the crispness of fall, with September serving as a bridge that introduces more humid conditions as winter approaches.

September Average Humidity in Stefan Cel Mare

This chart illustrates the average monthly humidity levels in Stefan Cel Mare, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Stefan Cel Mare is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%88%86%79%73%73%69%56%62%81%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Stefan Cel Mare

As September arrives in Stefan Cel Mare, Romania, the UV Index reflects a shift towards high exposure levels, registering at 7. Typically, this month serves as a bridge between the sweltering summer and the cooler autumn, with the associated burn time of 25 minutes highlighting the need for vigilance during outdoor activities. Following a peak of 9 in June and July, UV levels gradually decrease, yet remain significant enough to warrant caution. With the onset of fall, residents and visitors are reminded to still protect their skin, embracing the beautiful early autumn days while being mindful of the sun's strength. For more detailed information, visit the Stefan Cel Mare UV Index.

Maximum UV Index Levels in Stefan Cel Mare for September

The chart shows the monthly maximum UV Index (UVI) for Stefan Cel Mare in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Stefan Cel Mare typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Stefan Cel Mare September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Stefan Cel Mare

As summer fades into autumn, September in Stefan Cel Mare is a delightfully sunlit transition, boasting 337 hours of sunshine. This month, while still enjoying ample sunshine, marks a gentle decline from the sunny heights of mid-summer, where July dazzles with 423 hours, and August follows closely with 409 hours. The gradual decrease reflects the shift in seasons, yet September remains a bright spot in the calendar, overshadowing the shorter days to come in October and November. This trend of diminishing daylight is a natural rhythm, leading to clearer skies and crisp air, inviting both locals and travelers to relish the beauty of early fall in this charming Romanian locale.

Monthly Sunshine Duration in Stefan Cel Mare: September Highlighted

The September sunshine duration represents the total number of hours Stefan Cel Mare experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec165h226h286h343h398h400h423h409h337h288h218h182h
Data source: Stefan Cel Mare September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Stefan Cel Mare During September

As summer transitions into autumn, September in Stefan Cel Mare, Romania, boasts a 46% chance of sunny weather, making it a relatively bright month compared to the year’s earlier offerings. While the peak sunshine days occur in July and August, the likelihood of sun remains steady in September, paralleling the higher sunshine rates of spring, such as April's 46% and October's 49%. This moderate chance of sunshine suggests that September is a delightful time for outdoor activities, benefiting from lingering warmth before the cooler months set in. Overall, September strikes a balance between the sun-soaked summer and the crisp autumn, making it an enticing month for travelers and locals alike.

Percentage of Sunny Days in September in Stefan Cel Mare

The chart illustrates the percentage of sunny days in Stefan Cel Mare throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Stefan Cel Mare experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%41%37%46%40%33%57%55%46%49%40%24%
Data source: Stefan Cel Mare September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Stefan Cel Mare in September

As summer fades into autumn in Stefan Cel Mare, Romania, September brings a gentle transition with approximately 12 hours of daylight. This marks a subtle but noticeable decline from the longer days of the peak summer months, where daylight extended to an impressive 15 hours in June and July. The trend reflects a gradual shortening of daylight that started in August, when days began to wane. As the year progresses, the daylight duration will continue to decrease, eventually leading into the darker winter months of October and November, each offering only 10 and 9 hours of light, respectively. This shift not only alters the landscape but also the rhythm of daily life, as residents begin to embrace the cozy embrace of autumn evenings.

Average Daylight Hours in Stefan Cel Mare for September

The chart illustrates the variation in daylight duration in Stefan Cel Mare throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 20m11h 56m13h 34m14h 59m15h 42m15h 19m14h 4m12h 29m10h 52m9h 25m8h 40m
Data source: Stefan Cel Mare daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Stefan Cel Mare

As September arrives in Stefan Cel Mare, Romania, the wind dances at an average speed of 1.9 m/s (4 mph), showcasing a gentle breeze that embraces the transition from summer to autumn. This marks a subtle decline from the peak summer months of July and August, where wind speeds hovered around 2.0 m/s and 1.8 m/s, respectively. Interestingly, September's winds are slightly stronger than those of August, indicating a shift as the season progresses. The cooler air invigorates the landscape, preparing it for the crisp days ahead, while still maintaining a calm demeanor. As the year nears its end, the wind speed trends suggest a gradual return to the more spirited gusts of earlier months, hinting at the dynamic character of Stefan Cel Mare’s climate.

Average September Wind Speed in Stefan Cel Mare

The chart displays monthly wind speed patterns in Stefan Cel Mare, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.52.72.02.42.62.01.81.9 m/s2.02.12.4
Data source: Stefan Cel Mare September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Stefan Cel Mare Compares to Other Months

Weather in Stefan Cel Mare varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Stefan Cel Mare, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present strikingly different weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm average of 16°C (61°F), with highs reaching up to 32°C (89°F). The month sees about 35 mm (1.4 in) of precipitation over roughly 7 days, accompanied by a moderate humidity level of 62%. In contrast, January is characterized by much colder conditions, with temperatures plunging to a minimum of -20°C (-4°F) and an average of -2°C (29°F), peaking at just 14°C (58°F). Precipitation is slightly lower at 31 mm (1.2 in), occurring over 6 days, but the humidity rises significantly to 92%. This contrast highlights the transition from the warm beginnings of autumn in September to the frigid depths of winter in January. For more detailed information about January weather, visit Stefan Cel Mare weather in January.

In September, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 32°C (89°F), with an average temperature of 16°C (61°F). The month experiences about 35 mm (1.4 in) of precipitation over approximately 7 days and has a moderate humidity level of 62%.

In contrast, February is much colder, with temperatures fluctuating from a minimum of -14°C (8°F) to a maximum of 20°C (67°F) and an average of only 1°C (34°F). Precipitation slightly increases to 41 mm (1.6 in) spread over 9 days, and the humidity is higher at 88%. The stark difference in temperatures and humidity highlights the seasonal shift between these two months. For more detailed weather data, you can refer to Stefan Cel Mare weather in February.

September and March present distinct weather contrasts. In September, temperatures range from a low of -1°C (30°F) to a comfortable average of 16°C (61°F), peaking at a warm 32°C (89°F). The month experiences relatively low precipitation at 35 mm (1.4 in) over about 7 days, with a humidity level of 62%. In contrast, March is markedly colder, with temperatures dipping to a minimum of -17°C (1°F) and averaging just 4°C (40°F), while reaching a maximum of 23°C (74°F). This month sees increased precipitation at 47 mm (1.9 in) across approximately 10 days, and higher humidity levels at 86%. For a more detailed look at weather conditions in March, check out Stefan Cel Mare weather in March.

When comparing the weather in September and April, it's evident that September typically offers a wider temperature range. In September, temperatures can vary from a chilly 1°C (30°F) at night to a warm 32°C (89°F) during the day, with an average temperature of 16°C (61°F). In contrast, April sees cooler conditions, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 26°C (80°F) and an average of 9°C (49°F).

Additionally, September experiences slightly less precipitation, averaging 35 mm (1.4 in) over about seven days, while April is wetter, with 50 mm (2.0 in) of rain falling on eight days. Humidity levels are generally higher in April at 79%, compared to 62% in September, making April feel more humid. For a detailed overview of the weather in April, you can check Stefan Cel Mare weather in April.

Comparing the weather in September and May reveals distinct differences in temperature and precipitation patterns. September experiences a broader temperature range, with minimums dipping to -1°C (30°F) and maximums soaring up to 32°C (89°F), averaging at 16°C (61°F). In contrast, May has slightly milder temperatures, ranging from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), with an average of 15°C (59°F). Additionally, May tends to be wetter, receiving 67 mm (2.6 in) of precipitation over 13 days, compared to September's 35 mm (1.4 in) over just 7 days. The humidity is also higher in May at 73%, while September's humidity averages 62%. For more detailed insights, you can check Stefan Cel Mare weather in May.

When comparing the weather in September to that of June, significant differences become apparent. In September, temperatures range from a chilly min of -1°C (30°F) to a warm max of 32°C (89°F), with an average of 16°C (61°F). The month experiences approximately 35 mm (1.4 in) of precipitation over about 7 days and a moderate humidity level of 62%. In contrast, June features a slightly higher temperature range with a minimum of 5°C (42°F) and a maximum of 32°C (90°F), averaging at 19°C (67°F). However, June sees much more rainfall, totaling 134 mm (5.3 in) across 18 days, along with a higher humidity of 73%. The differences in weather patterns highlight June as the wetter month, while September offers a broader temperature range with less frequent rainfall. For more detailed insights, check out Stefan Cel Mare weather in June.

When comparing the weather in September and July, notable differences emerge in temperature, precipitation, and humidity. September experiences a broader range of temperatures, with a minimum of -1°C (30°F) and a maximum of 32°C (89°F), offering an average of 16°C (61°F). In contrast, July is generally warmer, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 33°C (92°F) and an average temperature of 20°C (69°F).

Precipitation levels also vary significantly; September sees 35 mm (1.4 in) of rain over approximately 7 days, while July receives much more rainfall at 89 mm (3.5 in) over about 14 days. Additionally, July tends to be slightly more humid, with a humidity level of 68%, compared to September's 62%. For a closer look at July conditions, you can check Stefan Cel Mare weather in July.

In comparing the weather patterns of September and August, we see notable differences in temperature and precipitation. September experiences a broader temperature range, with minimums plunging to -1°C (30°F) and maximums reaching up to 32°C (89°F), while the average temperature settles at 16°C (61°F). In contrast, August has milder conditions, boasting a minimum of 8°C (46°F) and a maximum of 35°C (94°F), with an average of 21°C (70°F). Precipitation also varies, with September receiving 35 mm (1.4 in) over 7 days compared to August's 52 mm (2.0 in) across 8 days. The humidity levels are slightly higher in September at 62%, compared to August's 56%. For more detailed insights on the weather in August, you can visit Stefan Cel Mare weather in August.

In comparing the weather between September and October, September enjoys warmer temperatures with a minimum of -1°C (30°F) and a maximum reaching up to 32°C (89°F), averaging around 16°C (61°F). Despite experiencing 35 mm (1.4 in) of precipitation over 7 days, the humidity remains relatively moderate at 62%. In contrast, October sees a more pronounced drop in temperatures, with a minimum of -3°C (28°F) and a maximum of 25°C (78°F), averaging just 11°C (51°F). While precipitation increases slightly to 40 mm (1.6 in) over 6 days, the humidity also rises to 80%, making the air feel noticeably heavier. For more insights, check out Stefan Cel Mare weather in October.

September and November present noticeably different weather patterns. September boasts a wider temperature range, with a minimum of -1°C (30°F) and a maximum of 32°C (89°F), resulting in an average of 16°C (61°F). During this month, precipitation is moderate at 35 mm (1.4 in) over 7 days, with humidity around 62%. In contrast, November sees cooler conditions with a minimum of -8°C (18°F) and a maximum of 22°C (72°F), leading to a significantly lower average temperature of 5°C (41°F). While November has slightly higher precipitation at 38 mm (1.5 in) over just 6 days, the humidity sharply rises to 89%, contributing to a much colder and damp atmosphere. For more detailed information, you can check out Stefan Cel Mare weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 32°C (89°F), with an average of 16°C (61°F) and only 35 mm (1.4 in) of precipitation over about 7 days. The humidity sits at a moderate 62%, providing a pleasant atmosphere for outdoor activities. Conversely, December sees a significant drop in temperatures, with a minimum of -13°C (8°F) and an average of just 1°C (34°F), peaking at a maximum of 16°C (60°F). The month is notably wetter, receiving 59 mm (2.3 in) of precipitation across 10 days, and the humidity rises to a high 90%, creating a much more damp and chilly environment. For those interested in specific weather details for December, you can refer to Stefan Cel Mare weather in December.

Compare Stefan Cel Mare's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Stefan Cel Mare

As September rolls in, Stefan Cel Mare experiences a noticeable transition in weather, marked by milder temperatures compared to the sweltering summer months. With an average of 16°C (61°F), the days feel refreshing, inviting outdoor activities before the colder autumn sets in. However, occasional chill can still bite, with nights dipping to -1°C (30°F). Rainfall is moderate, with about 35 mm spread over a week, contributing to the region's lush foliage. The 62% humidity adds a touch of moisture to the air, making for a pleasant atmosphere. This blend of warmth and coolness distinctly characterizes September, setting it apart from the hotter summer months. For a deeper look at what makes this time of year unique, explore the Stefan Cel Mare Climate.