September Weather in Radenci, Slovenia

Last updated: August 27, 2025

In Radenci, Slovenia, September brings a dynamic mix of temperatures that can soar to a pleasant 32°C (91°F), balance at an average of 17°C (63°F), and dip to a cool 2°C (36°F). This month is characterized by moderate precipitation, totaling 110 mm (4.3 in) over approximately 10 days, contributing to the region's lush landscape. The humidity level hovers around 65%, creating a refreshing atmosphere for visitors and locals alike. Whether you’re exploring the scenic countryside or relaxing in the thermal spas, September offers a charming blend of summer warmth and the crispness of early autumn.

September Temperature in Radenci

In Radenci, Slovenia, September marks a delightful transition into autumn, characterized by pleasant temperatures that invite exploration. The month begins with a minimum of 2°C (36°F) and reaches a comfortable average of 17°C (63°F), while daytime highs can soar to a balmy 32°C (91°F). This gradual cooling trend from the hot summer days mirrors the fading warmth of August, yet it retains a hint of summer's vibrancy. As the leaves begin to change, September is an ideal time for outdoor activities, with the mild climate providing a perfect backdrop for both relaxation and adventure in this picturesque Slovenian town.

September Weather in Radenci: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Radenci, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Radenci, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333944536070727262534436
Data source: Temperature data for Radenci generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Radenci

September in Radenci, Slovenia, marks a significant increase in precipitation, with 110 mm (4.3 in) of rainfall recorded over 10 days. This month stands out as one of the wettest of the year, reflecting a notable rise from the more moderate summer months, which ranged between 84 mm and 90 mm. The consistent rain is integral to the transition into autumn, fostering vibrant landscapes and nurturing local ecosystems. As the summer heat gives way to cooler temperatures, September's rainfall is a reminder of nature's cyclical patterns, hinting at the wetter months that lie ahead.

September Precipitation Trends in Radenci

The chart displays monthly precipitation patterns in Radenci, 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 Radenci, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec26433649115908490110557258
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Radenci

In Radenci, Slovenia, September marks a transition in humidity levels, with the atmosphere becoming notably more humid after the summer months. Following the warmth of August, where humidity dipped to a comfortable 60%, September sees a slight increase to 65%. This shift is part of a broader trend, as the region experiences higher humidity levels as it moves into autumn, ultimately reaching 84% by October. This gradual rise enhances the crispness of fall, balancing the warmth of summer with a hint of moisture in the air, preparing the landscape for the refreshing chill of winter.

September Average Humidity in Radenci

This chart illustrates the average monthly humidity levels in Radenci, 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 Radenci is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%84%78%73%71%73%70%60%65%84%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Radenci

In September, Radenci, Slovenia experiences a UV Index of 6, categorizing it as high exposure risk with a burn time of 25 minutes. As summer fades, the UV levels begin to decline from the peak of 9 in July and June, indicating a shift in the sun’s intensity. This month’s UV index mirrors that of April, providing a notable transition from the intense rays of summer to a more moderate late-season sun. As outdoor activities continue, it’s essential to remain vigilant about sun protection in these final warm days, taking note of the trends throughout the year. For more detailed information, check out Radenci UV Index.

Maximum UV Index Levels in Radenci for September

The chart shows the monthly maximum UV Index (UVI) for Radenci 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 Radenci typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Radenci 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 Radenci

In Radenci, Slovenia, the month of September shines with an impressive 321 hours of sunshine, reflecting a graceful transition from the sun-drenched days of summer to the cooler embrace of autumn. After basking in the peak sunlight of July with 422 hours, the days begin to mellow in August, dropping to 388 hours. Yet, September retains a vibrant glow, benefiting from the lingering warmth and longer daylight hours. As the seasons change, the decrease in sunshine hours into October—where they fall to 285—suggests that September bids farewell to summer while still offering ample opportunity to enjoy outdoor adventures amidst nature's colorful transformation. This seamless blend of light and scenery encapsulates the charm of Radenci during this golden month.

Monthly Sunshine Duration in Radenci: September Highlighted

The September sunshine duration represents the total number of hours Radenci 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.
JanFebMarAprMayJunJulAugSepOctNovDec167h225h303h338h365h402h422h388h321h285h208h199h
Data source: Radenci September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Radenci During September

In Radenci, Slovenia, September offers a promising 52% chance of sunny weather, making it one of the more favorable months for sunshine as summer transitions into autumn. This likelihood of clear skies shows an upward trend compared to the previous months, particularly notable after the drier summer months of July and August. As temperatures begin to cool, September stands out with its relatively high sunshine probability, suggesting it's a wonderful time for outdoor activities and enjoying the picturesque landscapes of the region. While the summer peak may have passed, the pleasant and bright days of September are a delightful reward for those eager to embrace the changing season.

Percentage of Sunny Days in September in Radenci

The chart illustrates the percentage of sunny days in Radenci 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 Radenci experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%50%55%40%38%54%47%44%52%43%28%32%
Data source: Radenci September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Radenci in September

As September arrives in Radenci, Slovenia, daylight begins to wane, offering a gentle transition into the softer hues of autumn. Following the sun-drenched days of summer, where daylight peaks at 15 hours in June through August, September sees a decline to 12 hours of sunlight. This gradual reduction marks the start of shorter days, echoing the trends seen as the year progresses toward winter. Interestingly, after the warm summer months, this month still offers a generous amount of light, standing in stark contrast to the early year’s 8 hours in January and the diminishing daylight that follows into fall. The rhythmic ebb and flow of daylight highlights the beauty of seasonal change, inviting residents to savor the lingering warmth before the longer shadows of winter take hold.

Average Daylight Hours in Radenci for September

The chart illustrates the variation in daylight duration in Radenci throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 17m11h 56m13h 36m15h 3m15h 47m15h 24m14h 7m12h 30m10h 50m9h 21m8h 35m
Data source: Radenci daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Radenci

As September sweeps into Radenci, Slovenia, the wind takes a gentle turn, averaging a calm 1.7 m/s (4 mph). This marks one of the quieter months for breeze activity, following the slightly more animated summer months, where winds consistently hovered around 1.8 to 2.3 m/s. The easing winds signal a transition as the vibrant energy of summer gives way to the crispness of autumn. Interestingly, this decline from August's winds, which were already mild at 1.8 m/s, highlights a clear trend towards calmer conditions in early fall, creating a serene atmosphere perfect for leisurely strolls amidst the changing leaves. As the year progresses, we can anticipate a gradual return to more energetic gusts with October's 2.4 m/s, hinting at the dynamic shifts that characterize Radenci's wind patterns throughout the seasons.

Average September Wind Speed in Radenci

The chart displays monthly wind speed patterns in Radenci, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.12.32.72.72.12.31.81.7 m/s2.41.71.8
Data source: Radenci September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Radenci Compares to Other Months

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

September experiences a wide range of temperatures, with minimums around 2°C (36°F), averages of 17°C (63°F), and highs reaching 32°C (91°F). The weather is generally more humid, with an average humidity of 65% and significant precipitation of 110 mm (4.3 in) over approximately 10 days. In contrast, January brings much colder conditions, with temperatures dropping to a minimum of -12°C (11°F) and an average of just 1°C (34°F). The maximum temperature barely reaches 14°C (58°F), and while precipitation is lower at 26 mm (1.0 in) over 5 days, the humidity rises to 90%, contributing to a crisp, wintry atmosphere. For more detailed information, you can check Radenci weather in January.

September and February present significantly different weather patterns. September boasts a warmer climate, with temperatures ranging from a minimum of 2°C (36°F) to an average of 17°C (63°F) and a maximum of 32°C (91°F). The month typically experiences 110 mm (4.3 in) of precipitation over about 10 days, accompanied by a moderate humidity level of 65%. In contrast, February is much colder, with temperatures dropping as low as -12°C (11°F), reaching an average of 4°C (39°F) and peaking at 20°C (68°F). The precipitation during this month is less, at 43 mm (1.7 in) over about 7 days, but the humidity is higher at 84%. For a more detailed look at February weather, you can visit Radenci weather in February.

In comparing the weather of September and March, the differences are quite striking. September enjoys a mild temperature range with minimums around 2°C (36°F) and maximums peaking at 32°C (91°F), averaging 17°C (63°F). This month sees about 110 mm (4.3 in) of precipitation over approximately 10 days, complemented by a moderate humidity level of 65%. In contrast, March presents a chillier climate, with minimum temperatures plummeting to -19°C (-2°F) and a maximum of 23°C (74°F), leading to an average of only 7°C (44°F). Precipitation drops significantly to 36 mm (1.4 in) across 8 days, but humidity rises to a notable 78%. For a more in-depth look at March weather, you can visit Radenci weather in March.

In September, temperatures show a wider range, with minimums around 2°C (36°F) and maximums reaching up to 32°C (91°F), while the average temperature hovers at 17°C (63°F). The month also experiences a higher amount of rainfall, totaling 110 mm (4.3 in) over approximately 10 days, combined with a humidity level of 65%. Conversely, April exhibits cooler temperatures, with minimums dropping to -5°C (23°F) and maximums peaking at 28°C (83°F), alongside an average temperature of 12°C (53°F). Rainfall is lighter in April, accumulating to 49 mm (1.9 in) over about 8 days, and the humidity is slightly higher at 73%. For detailed insights into April’s weather, you can check Radenci weather in April.

In comparing the weather of September and May, we observe that both months have similar temperature ranges, with September featuring a minimum of 2°C (36°F), an average of 17°C (63°F), and a maximum of 32°C (91°F), while May's temperatures range from a minimum of 3°C (37°F), an average of 16°C (60°F), to a maximum of 31°C (89°F). Although September has slightly lower humidity at 65%, May experiences a higher humidity level of 71%, contributing to a more muggy environment. Precipitation is also notable, with September receiving 110 mm (4.3 in) over about 10 days, whereas May sees a touch more rain at 115 mm (4.5 in) across 16 days. For more detailed insights into the weather conditions, you can check Radenci weather in May.

In comparing the weather of September and June, we can observe notable differences in temperature and humidity. September has a wider temperature range, with minimums dipping to 2°C (36°F) and maximums reaching up to 32°C (91°F), while the average temperature is around 17°C (63°F). In contrast, June is generally warmer, with minimum temperatures starting at 8°C (46°F) and maximums soaring to 36°C (97°F), averaging 21°C (70°F). Additionally, June experiences slightly lower precipitation levels at 90 mm (3.5 in) over 12 days, compared to September's 110 mm (4.3 in) across 10 days. Notably, June's humidity is higher, averaging 73%, whereas September holds at 65%. For a more detailed look, you can visit Radenci weather in June.

When comparing the weather in September and July, several notable differences emerge. September experiences a broader temperature range, with minimum temperatures dropping to 2°C (36°F) and maximums reaching 32°C (91°F), resulting in an average of 17°C (63°F). In contrast, July generally maintains milder nights, with minimum temperatures around 10°C (50°F) and maximums peaking at 36°C (96°F), leading to a higher average of 22°C (72°F). Precipitation is slightly more frequent in September, totaling 110 mm (4.3 in) over 10 days, compared to July's 84 mm (3.3 in) over 12 days, which accounts for its slightly higher humidity level of 65% versus July's 70%. For more details on July's weather, you can visit Radenci weather in July.

In comparing the weather between August and September, we observe notable differences. August experiences higher average temperatures with a minimum of 8°C (47°F) and a maximum of 38°C (100°F), resulting in an average temperature of 22°C (72°F). In contrast, September cools down significantly, featuring a minimum of 2°C (36°F) and an average temperature of 17°C (63°F), with a maximum of 32°C (91°F). While both months see precipitation, August has slightly less, with 90 mm (3.5 in) over 12 days compared to September’s 110 mm (4.3 in) over 10 days. Additionally, September has higher humidity levels at 65%, compared to August's 60%. For a detailed look at the weather in August, you can explore Radenci weather in August.

September and October bring noticeable shifts in weather patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 32°C (91°F), with an average of 17°C (63°F), making it much warmer than October. Precipitation is relatively high at 110 mm (4.3 in) over about 10 days, and humidity sits at 65%. By contrast, October experiences cooler temperatures, with a minimum of -1°C (30°F), an average of 12°C (54°F), and a maximum of 26°C (79°F). Precipitation decreases to 55 mm (2.1 in) over 8 days, but humidity rises significantly to 84%. For more details on what to expect in October, check out Radenci weather in October.

September and November showcase a notable shift in weather patterns, reflecting the transition from late summer to late autumn. In September, temperatures can range from a mild 17°C (63°F) on average, peaking at a warm 32°C (91°F), while November sees a cooler average of 7°C (44°F), with maximum temperatures capping at 20°C (68°F). Precipitation decreases slightly from September's 110 mm (4.3 in) over 10 days to November's 72 mm (2.8 in) across 9 days, but humidity rises significantly from 65% in September to a notable 89% in November. For a detailed look at November's weather patterns, you can check Radenci weather in November.

In September, the weather is significantly warmer, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 32°C (91°F), and an average of 17°C (63°F). This month also experiences higher precipitation levels, totaling 110 mm (4.3 in) over about 10 days, combined with a moderate humidity of 65%. In contrast, December brings a much colder climate, featuring temperatures that drop to a minimum of -7°C (20°F) and peak at 17°C (62°F), with an average of just 2°C (36°F). Precipitation decreases to 58 mm (2.3 in) spread over 8 days, while humidity rises to a notable 89%. For more detailed information, you can check Radenci weather in December.

Compare Radenci's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Radenci

As summer transitions into autumn, September in Radenci offers a unique blend of warmth and refreshing coolness, distinguishing it from the more extreme temperatures of July and August. While the maximum temperatures can still reach a pleasant 32°C (91°F), the average daytime warmth dips to a comfortable 17°C (63°F), making outdoor activities enjoyable without the sweltering heat. Rainfall begins to increase, with approximately 110 mm of precipitation spread over about 10 days, adding a rejuvenating touch to the landscape. The humidity, hovering around 65%, contributes to a crisp feeling in the air, marking a refreshing shift from the muggy summer months. For a deeper understanding of the area's climate, explore the details at Radenci Climate.