September Weather in Radovljica, Slovenia

Last updated: August 27, 2025

In September, Radovljica, Slovenia, experiences a diverse range of weather conditions. The maximum temperature reaches a pleasant 28°C (83°F), while the average hovers around a cool 15°C (59°F), dipping to a refreshing minimum of 0°C (33°F). This month sees 170 mm (6.7 in) of rainfall spread across 13 days, contributing to a humidity level of 74%, which enhances the area's lush landscapes. Visitors can expect a mix of sunny days and occasional showers, making September an ideal time to explore the natural beauty and rich culture of this charming Slovenian town.

September Temperature in Radovljica

In September, Radovljica, Slovenia, experiences a delightful transition as summer gradually gives way to autumn. With minimum temperatures around 0°C (33°F) and average highs reaching 28°C (83°F), the month offers a balanced climate that is ideal for outdoor explorations. The average temperature settles at a comfortable 15°C (59°F), making it a perfect time to enjoy the scenic beauty of the region. As the days grow shorter and cooler, visitors can expect a refreshing mix of warm afternoons and crisp evenings, underscoring September's role as a bridge between the vibrancy of summer and the tranquil charm of fall.

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

The chart illustrates September temperature patterns in Radovljica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Radovljica, 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).
JanFebMarAprMayJunJulAugSepOctNovDec303640485665676759504132
Data source: Temperature data for Radovljica 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 Radovljica

September in Radovljica, Slovenia, is characterized by a notable spike in precipitation, with 170 mm (6.7 in) of rain falling over 13 days. This surge marks a continuation of the wetter trend observed in the preceding months, particularly August, which recorded 146 mm (5.8 in). As summer fades into autumn, the rainfall contributes to the lush landscapes surrounding the town, but it also signals the transition towards the drier months of October and November. Notably, while September boasts significant precipitation, it experiences fewer rainy days compared to the peak in May, which underscores a tendency for heavier downpours rather than frequent light rain. Overall, this month is crucial for replenishing local water sources, setting the stage for the impending seasonal shift.

September Precipitation Trends in Radovljica

The chart displays monthly precipitation patterns in Radovljica, 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 Radovljica, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec51908011316910512314617097154126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Radovljica

In Radovljica, Slovenia, September marks a subtle transition in humidity levels as summer gives way to autumn. With an average humidity of 74%, it mirrors the slightly damp conditions found in the preceding months of June through August, which ranged between 68% and 75%. This suggests a gradual return to the wetter climate typical of the fall months, as humidity levels begin climbing again in October, reaching 88%. Overall, the month serves as a bridge, maintaining a moderate humidity while signaling the onset of a wetter season ahead, characteristic of Radovljica's temperate climate.

September Average Humidity in Radovljica

This chart illustrates the average monthly humidity levels in Radovljica, 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 Radovljica is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%82%79%74%75%74%69%74%88%90%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Radovljica

As summer gives way to autumn, the September UV Index in Radovljica stands at a solid 7, categorizing it as high. This marks a slight decrease from the peak of 9 observed in both July and June, but it still necessitates caution during outdoor activities, with a burn time of approximately 25 minutes for unprotected skin. The trend throughout the months shows a gradual transition from low exposure levels in the winter to very high levels in mid-summer, before tapering down to moderate levels by October. Remember to stay protected, as even in September, the sun's rays can be deceptively strong. For more detailed information, check out the Radovljica UV Index.

Maximum UV Index Levels in Radovljica for September

The chart shows the monthly maximum UV Index (UVI) for Radovljica 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 Radovljica typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: Radovljica 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 Radovljica

September in Radovljica, Slovenia, shines with 309 hours of daylight, marking a gentle transition from the summer's vibrant glow to the autumn's softer light. The month retains a substantial amount of sunlight, building on the high of 415 hours seen in July and 382 hours in August. As the year progresses, we see a gradual decline in sunshine hours, with September offering a delightful balance of warmth and daylight before the more muted tones of October, which sees a dip to 275 hours. This rhythm of sunlight reflects the town's seasonal shift, inviting visitors to bask in the lingering summer warmth while savoring the early hints of autumn.

Monthly Sunshine Duration in Radovljica: September Highlighted

The September sunshine duration represents the total number of hours Radovljica 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.
JanFebMarAprMayJunJulAugSepOctNovDec178h215h300h331h355h396h415h382h309h275h194h202h
Data source: Radovljica September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Radovljica During September

As the summer months transition into autumn, September in Radovljica, Slovenia, offers a refreshing combination of lingering warmth and an increased likelihood of sunny weather, with a sun chance of 48%. This marks a notable uptick from the previous months, highlighting a trend where sunny days become more prevalent after the peak summer season. While the sunshine percentages in July and August hover around the low 40s, September stands out, showcasing a unique balance of comfortable temperatures and brighter skies. This makes it an ideal time for outdoor activities, as the pleasant weather extends the fleeting touch of summer into the early fall.

Percentage of Sunny Days in September in Radovljica

The chart illustrates the percentage of sunny days in Radovljica 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 Radovljica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%41%55%32%30%48%43%41%48%34%23%30%
Data source: Radovljica September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Radovljica in September

As summer fades into autumn, September in Radovljica, Slovenia, offers a gentle transition with approximately 12 hours of daylight. Following the bright and sun-drenched days of July and August, which each boasted a consistent 15 hours of daylight, September marks a noticeable shift toward shorter days. This gradual decline continues as the year progresses, with daylight decreasing to 10 hours in October and settling at 9 hours by November. The trend highlights the essence of seasonal change, as the vibrant hues of fall prepare to embrace the quietude of winter, all while reminding us to cherish each precious hour of daylight.

Average Daylight Hours in Radovljica for September

The chart illustrates the variation in daylight duration in Radovljica 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 19m11h 56m13h 35m15h15h 43m15h 20m14h 5m12h 29m10h 51m9h 24m8h 39m
Data source: Radovljica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Radovljica

As September arrives in Radovljica, Slovenia, the gentle embrace of the September wind is felt, with an average speed of 1.5 m/s (3 mph) that mirrors the calmness of late summer. This moderate breeze transitions smoothly from the slightly breezier August, offering a soothing end to the warm season. Throughout the year, wind speeds in Radovljica tend to fluctuate subtly, with spring months typically promoting a slow increase, peaking in April, before tapering off into the quieter breezes of late summer. The consistent September winds maintain this tranquil pattern, striking a serene balance as the landscape begins to shift into the vibrant colors of autumn. With October’s winds gradually picking up to 1.7 m/s, Radovljica's breezy charm persists, inviting moments of reflection as summer's warmth gives way to cooler days ahead.

Average September Wind Speed in Radovljica

The chart displays monthly wind speed patterns in Radovljica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.71.71.81.71.51.61.41.5 m/s1.71.51.5
Data source: Radovljica September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Radovljica Compares to Other Months

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

September and January present strikingly different weather conditions. In September, temperatures range from a minimum of 0°C (33°F) to a maximum of 28°C (83°F), with an average of 15°C (59°F) and a relatively high humidity level of 74%. Rainfall is also quite significant, with 170 mm (6.7 in) spread over 13 days. In contrast, January brings much colder temperatures, recorded between -16°C (3°F) and 11°C (52°F), with an average of -1°C (31°F). The precipitation in January is considerably lower at 51 mm (2.0 in) over just 6 days, accompanied by a higher humidity of 91%. For more information on January weather, you can check Radovljica weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 28°C (83°F), with an average temperature of 15°C (59°F). The month experiences significant rainfall, totaling 170 mm (6.7 in) over approximately 13 days, and has a humidity level of 74%. In stark contrast, February is much colder, with temperatures ranging from a low of -13°C (9°F) to a high of 18°C (64°F), resulting in an average of only 2°C (36°F). February sees less rainfall at 90 mm (3.5 in) over about 10 days, but the humidity is higher at 87%. For a more detailed look at February weather, you can refer to Radovljica weather in February.

The weather in September is generally milder compared to March, with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 28°C (83°F) and an average of 15°C (59°F). In September, there is also a higher level of precipitation, totaling 170 mm (6.7 in) over 13 days, with a humidity level of 74%. In contrast, March sees colder temperatures, with lows dropping to -16°C (3°F) and an average temperature of only 5°C (40°F). Precipitation in March is less frequent, at 80 mm (3.1 in) over 10 days, coupled with an increased humidity of 82%. For more detailed insights, you can check out Radovljica weather in March.

When comparing the weather in September and April, we observe notable differences in temperature and precipitation patterns. September generally enjoys a milder climate, with average temperatures around 15°C (59°F) and maximums reaching 28°C (83°F), in contrast to April's cooler average of 9°C (49°F) and maximums of 25°C (77°F). However, April starts off with colder minimum temperatures, sometimes dipping as low as -10°C (15°F), compared to September's mild minimum of 0°C (33°F). Precipitation also varies, with September experiencing more rain at 170 mm (6.7 in) over 13 days, while April has less rainfall at 113 mm (4.4 in) over 12 days. Additionally, humidity levels in April are slightly higher at 79%, compared to September's 74%. For more details on the weather in April, you can refer to Radovljica weather in April.

In comparing the weather between September and May, both months exhibit similar humidity levels at 74%, but their temperature ranges differ notably. September tends to be milder with average temperatures reaching 15°C (59°F), while May’s average is slightly cooler at 13°C (56°F). Additionally, September showcases a higher maximum temperature of 28°C (83°F) compared to May's peak of 26°C (79°F). Precipitation is comparable, with September receiving 170 mm (6.7 in) over 13 days and May experiencing 168 mm (6.6 in) across 20 days, hinting at a more consistent pattern of rainfall in May. For more detailed climate information, you can visit Radovljica weather in May.

Comparing the weather in September and June reveals notable differences in temperature and precipitation patterns. In September, temperatures range from a chilly minimum of 0°C (33°F) to a comfortable maximum of 28°C (83°F), with an average temperature of 15°C (59°F). The month experiences significant rainfall, totaling 170 mm (6.7 in) over 13 days, resulting in a humidity level of 74%.

In contrast, June offers a milder climate with minimum temperatures starting at 4°C (39°F) and peaking at 33°C (92°F), averaging around 18°C (66°F). While June sees less precipitation, with a total of 105 mm (4.1 in) across 14 days, the humidity remains relatively high at 75%. For more details on June weather, you can visit Radovljica weather in June.

When comparing the weather of September and July, it's clear that July tends to be warmer overall. The minimum temperature in July starts at 9°C (49°F) and averages 19°C (67°F), peaking at 31°C (88°F), while September experiences a cooler minimum of 0°C (33°F) and an average of 15°C (59°F), with a maximum of 28°C (83°F). Additionally, humidity remains consistent at 74% for both months, but September sees more precipitation, totaling 170 mm (6.7 in) over 13 days, compared to July's 122 mm (4.8 in) spread over 16 days. This results in July being relatively drier and warmer, making it a favored month for outdoor activities. For more detailed information, you can check Radovljica weather in July.

In comparing the weather between August and September, it is evident that September experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (59°F), compared to August's milder minimum of 7°C (46°F) and an average of 20°C (68°F). While August boasts warmer highs, reaching up to 33°C (92°F), September's maximum temperature peaks at a more moderate 28°C (83°F). Precipitation is slightly higher in September, totaling 170 mm (6.7 in) over 13 days, whereas August records 146 mm (5.8 in) across 15 days. Additionally, September exhibits higher humidity levels at 74%, compared to August's 68%. For a more detailed look at the weather patterns, you can check Radovljica weather in August.

September and October display distinct differences in weather patterns. September experiences milder temperatures, with an average of 15°C (59°F) and maximum highs reaching 28°C (83°F), making it a warmer month overall. In contrast, October sees a noticeable drop in temperatures, with averages plummeting to around 10°C (50°F) and maximums capped at 22°C (73°F). Additionally, while September receives significant rainfall of 170 mm (6.7 in) over 13 days, October's precipitation is less intense, totaling 96 mm (3.8 in) across 10 days. Notably, October also brings higher humidity levels at 88%, compared to September’s 74%. For a more detailed look at the weather in October, visit Radovljica weather in October.

September and November present contrasting weather conditions. In September, temperatures range from a minimum of 0°C (33°F) to a pleasant average of 15°C (59°F), with daytime highs peaking at 28°C (83°F). The month experiences significant precipitation, totaling 170 mm (6.7 in) over 13 days, accompanied by a humidity level of 74%. In contrast, November's weather is cooler, with a minimum temperature that can drop to -11°C (12°F), an average of 5°C (42°F), and a maximum of 18°C (64°F). Although it has slightly less precipitation at 154 mm (6.1 in) over 11 days, November's humidity rises to 90%, contributing to a distinctly damp atmosphere. For a detailed look at weather specifics, check Radovljica weather in November.

September and December present a striking contrast in weather conditions. In September, temperatures range from a minimum of 0°C (33°F) to a comfortable maximum of 28°C (83°F), with an average temperature around 15°C (59°F). The month sees significant rainfall, totaling 170 mm (6.7 in) over 13 days, along with a moderate humidity level of 74%. In contrast, December's temperatures drop considerably, with a minimum of -16°C (3°F) and a maximum of only 12°C (53°F), averaging around 0°C (33°F). However, December is drier, receiving 126 mm (5.0 in) of precipitation over 11 days, accompanied by higher humidity at 89%. For more details on December weather, visit Radovljica weather in December.

Compare Radovljica's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Radovljica

As summer transitions into autumn, September in Radovljica brings a unique blend of warm days and cooler nights, with temperatures averaging a comfortable 15°C (59°F), peaking at a delightful 28°C (83°F). This month stands out with its notable humidity of 74% and increased rainfall, accumulating to 170 mm over approximately 13 days, painting a vivid picture of changing seasons. Unlike the drier summer months, September ushers in a refreshing, crisp atmosphere that invigorates the landscape, making it an ideal time for outdoor activities against the backdrop of autumn’s early colors. Embrace the charm of Radovljica's September weather and explore more about its climate at Radovljica Climate.