September Weather in Jezero, Slovenia

Last updated: August 27, 2025

September in Jezero, Slovenia, presents a dynamic blend of weather, with temperatures ranging from a refreshing minimum of 2°C (35°F) to a warm maximum of 29°C (85°F). The average temperature settled around 16°C (61°F), creating delightful conditions for outdoor activities. However, expect some rainfall, as the region experiences 159 mm (6.3 in) of precipitation over approximately 12 days, contributing to a comfortable humidity level of 64%. This transitional month showcases the beauty of early autumn, making it an ideal time to explore the stunning landscapes of Jezero.

September Temperature in Jezero

In September, Jezero, Slovenia experiences a delightful transition into autumn, with temperatures showcasing a beautiful range. The month kicks off with a chilly minimum of 2°C (35°F), while the average hovers around a comfortable 16°C (61°F). Days can still be warm, reaching a maximum of 29°C (85°F), reflecting the lingering warmth of summer. As the month progresses, the crispness of early fall begins to settle in, signaling the shift from the heat of August, which saw highs of 35°C (96°F). This delightful blend of temperatures makes September an ideal time for outdoor activities, inviting both locals and visitors to enjoy the breathtaking scenery and vibrant autumn colors that begin to emerge.

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

The chart illustrates September temperature patterns in Jezero, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jezero, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333843505867697060524336
Data source: Temperature data for Jezero 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 Jezero

In September, Jezero, Slovenia, experiences a significant increase in precipitation, with an impressive 159 mm (6.3 in) of rain, making it one of the wettest months of the year. This surge comes as summer gives way to autumn, adding to the 12 rainy days that mark this transitional period. Compared to the preceding months, September's rainfall is only slightly less than the average for May, which typically receives the highest monthly total. This uptick in precipitation not only nourishes the landscape, promoting vibrant fall colors, but also sets the stage for the wetter months ahead, as October and November continue the trend with substantial rainfalls of 98 mm (3.9 in) and 131 mm (5.2 in), respectively. Overall, September serves as a clear marker of the changing seasons, showcasing nature's refreshing embrace as temperatures begin to drop.

September Precipitation Trends in Jezero

The chart displays monthly precipitation patterns in Jezero, 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 Jezero, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec51897194166849810016098131121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jezero

As summer fades into autumn, September in Jezero, Slovenia, greets residents with a slight uptick in humidity, rising to 64% after the drier months of July and August. This shift marks a transition from the low humidity levels that characterize the height of summer, with July recording a mere 63%. However, as the region moves into October, humidity levels are expected to soar again, climbing back to 83%, which is more characteristic of the fall and winter months. Overall, the trend highlights a gradual return to the moisture-rich environment typical of Jezero, as the humidity fluctuates throughout the year, peaking in the colder months.

September Average Humidity in Jezero

This chart illustrates the average monthly humidity levels in Jezero, 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 Jezero is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jezero

As September rolls in Jezero, Slovenia, the UV Index stands at a high level of 7, allowing for a burn time of 25 minutes. This marks a slight decline from the peak summer months, where values reached 9 in July and June, indicating a transition from the intense sun to more manageable rays. While the need for sun protection remains important, the shift suggests an easing of the sun's intensity, inviting more outdoor activities without the immediate risk of sunburn experienced in the heart of summer. For a comprehensive understanding of seasonal changes in UV exposure, check out Jezero UV Index.

Maximum UV Index Levels in Jezero for September

The chart shows the monthly maximum UV Index (UVI) for Jezero 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 Jezero typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Jezero 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 Jezero

September in Jezero, Slovenia heralds the gentle transition into autumn, boasting an impressive 318 hours of sunshine. This is a notable drop from the sun-drenched heights of summer, with July peaking at 427 hours. As the days begin to shorten, September still enjoys a generous amount of sunlight, providing a beautiful backdrop for the changing leaves and vibrant landscapes. The trend of increasing sunshine hours from January's 178 hours to June's 408 hours reflects the region's warm progression through spring and summer, while September serves as a wonderful conclusion to the sunnier months before the autumnal dip into October's 286 hours. Embrace the warmth of September's sun as it gracefully bows to the coming season!

Monthly Sunshine Duration in Jezero: September Highlighted

The September sunshine duration represents the total number of hours Jezero 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.
JanFebMarAprMayJunJulAugSepOctNovDec178h220h310h336h361h408h427h393h318h286h212h209h
Data source: Jezero September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jezero During September

September in Jezero, Slovenia, brings a notable shift towards sunnier weather, boasting a 51% chance of sunshine. This figure marks a slight recovery from the more overcast months of July and August, where sunshine chances dipped to 46% and 44%, respectively. As summer transitions into autumn, September provides a welcoming balance of warmth and light, making it one of the more favorable months for outdoor activities. While the likelihood of sunshine begins to wane again in October, those enjoying the early fall days in Jezero can revel in the lingering glow of late summer.

Percentage of Sunny Days in September in Jezero

The chart illustrates the percentage of sunny days in Jezero 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 Jezero experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%37%58%37%33%53%46%44%51%32%24%29%
Data source: Jezero September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jezero in September

In Jezero, Slovenia, the transition from summer to autumn in September brings a noticeable shift in daylight, offering approximately 12 hours of daylight. This reflects a gradual decrease from the peak of 15 hours seen in June and July, as the days shorten and the crispness of autumn approaches. Despite this reduction, September still boasts a rich amount of sunlight compared to the dark depths of winter, where daylight dwindles to a mere 8 hours in December. The trend is clear: as the year unfolds, the gentle ebb and flow of daylight shapes the landscape, teasing the vibrant hues of fall while bidding farewell to the long, sun-soaked days of summer.

Average Daylight Hours in Jezero for September

The chart illustrates the variation in daylight duration in Jezero throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 5m10h 21m11h 56m13h 33m14h 57m15h 40m15h 17m14h 3m12h 29m10h 52m9h 26m8h 42m
Data source: Jezero daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Jezero

As September arrives in Jezero, Slovenia, the gentle breeze begins to wane slightly, with average wind speeds reaching 1.8 m/s (4 mph). This subtle shift follows a trend of decreasing winds that begins in the summer months, where July and August record even softer gusts. Interestingly, as the year progresses towards autumn, the wind picks up slightly again in October, hinting at nature's rhythmic dance with the seasons. Overall, September serves as a transitional period, embodying the calm before the more invigorating winds of fall take hold, creating a serene atmosphere perfect for appreciating the stunning landscapes of this picturesque region.

Average September Wind Speed in Jezero

The chart displays monthly wind speed patterns in Jezero, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.52.02.22.11.71.81.61.8 m/s2.21.91.6
Data source: Jezero September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Jezero Compares to Other Months

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

September and January present strikingly different weather patterns. In September, temperatures range from a cool 2°C (35°F) at night to a warm 29°C (85°F) during the day, averaging around 16°C (61°F). The month sees significant rainfall, with 159 mm (6.3 in) of precipitation occurring over 12 days, contributing to a humidity level of 64%. In sharp contrast, January experiences much colder temperatures, with a minimum of -12°C (11°F) and a maximum of 12°C (54°F), averaging just 1°C (34°F). This winter month is drier, with only 51 mm (2.0 in) of precipitation over 7 days, but the humidity is higher at 88%. For more detailed information, you can check the Jezero weather in January.

September and February present stark contrasts in weather conditions. September boasts milder temperatures, with averages around 16°C (61°F) and highs reaching up to 29°C (85°F), making it a transition into the cooler fall months. However, it also experiences significant rainfall, totaling 159 mm (6.3 in) over 12 days, while maintaining a moderate humidity of 64%. In contrast, February is much colder, with average temperatures around 4°C (39°F) and lows plummeting to -11°C (13°F). Although February sees less precipitation, about 88 mm (3.5 in) over 9 days, it has a higher humidity level at 82%, contributing to a crisp and often chilly feel. For a detailed look at February weather in Jezero, visit Jezero weather in February.

When comparing September and March, the weather exhibits significant differences. September brings warmer temperatures, with minimums around 2°C (35°F) and average highs reaching up to 29°C (85°F), contributing to a pleasant early autumn climate. In stark contrast, March experiences colder conditions, starting from a minimum of -14°C (8°F) and averaging only 6°C (43°F), although it can peak at 22°C (71°F) on milder days. Precipitation is more abundant in September, measuring 159 mm (6.3 in) over 12 days, compared to March, which sees just 71 mm (2.8 in) over 10 days. Additionally, March tends to have a slightly higher humidity at 73%, versus September's 64%. For more detailed information on Jezero weather in March, you can refer to this link: Jezero weather in March.

September and April exhibit distinct weather patterns that reflect the transition from summer to fall and winter to spring, respectively. In September, temperatures range from a mild 2°C (35°F) at night to a warm 29°C (85°F) during the day, with an average of 16°C (61°F). This month sees significant rainfall, with 159 mm (6.3 in) spread over 12 days, contributing to a humidity level of 64%. In contrast, April features cooler temperatures, with nighttime lows reaching -11°C (13°F) and daytime highs averaging at 26°C (79°F), though the average temperature stands at 10°C (51°F). Although this month also has rainfall spanning 12 days, it totals 94 mm (3.7 in) and comes with a slightly higher humidity at 73%. To explore more about the weather conditions in April, you can visit Jezero weather in April.

In comparing the weather between September and May, we notice several similarities and differences. September generally has a wider temperature range, with a minimum of 2°C and a maximum of 29°C, resulting in an average of 16°C. In contrast, May's temperature is slightly cooler, with a minimum of 1°C and a maximum of 28°C, averaging 14°C. Both months experience significant precipitation, with September receiving 159 mm over 12 days and May slightly higher at 166 mm over 19 days. Humidity levels are also noteworthy, with May being slightly more humid at 70% compared to September's 64%. For a more detailed look at May's weather, you can check Jezero weather in May.

In comparing the weather of September and June, notable differences emerge in both temperature and precipitation patterns. September experiences a wider temperature range, with minimums dropping as low as 2°C (35°F) and maximums reaching 29°C (85°F), while June maintains milder temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 34°C (94°F). Precipitation is more significant in September, totaling 159 mm (6.3 in) over 12 days, compared to June's 84 mm (3.3 in), which also spans 12 days. Additionally, humidity levels are slightly higher in June at 69%, as opposed to 64% in September. For further details on specific weather patterns, you can check Jezero weather in June.

When comparing the weather in September to that of July, it's clear that July tends to be warmer, with average temperatures reaching 21°C (70°F) and maximums hitting 34°C (93°F). In contrast, September sees a more moderate climate, with average temperatures around 16°C (61°F) and maximums of 29°C (85°F). Precipitation is also notably different; July experiences 98 mm (3.9 in) over 13 days, while September has a higher precipitation total of 159 mm (6.3 in) across 12 days. Humidity levels are quite similar in both months, with July at 63% and September slightly higher at 64%. For a more detailed look at July's climate, you can visit Jezero weather in July.

September weather shows a noticeable shift from August, with cooler temperatures as the minimum drops to 2°C (35°F) compared to August's minimum of 8°C (47°F). The average temperature also falls from 21°C (70°F) in August to 16°C (61°F) in September, while the maximum temperature sees a decline from a warm 35°C (96°F) to a more moderate 29°C (85°F). Moreover, September experiences increased precipitation, accumulating 159 mm (6.3 in) over 12 days, contrasting with August's 100 mm (3.9 in) over the same number of days. The humidity level rises significantly in September to 64%, compared to 51% in August, indicating a shift towards a wetter and cooler climate. For more details on August weather, check out Jezero weather in August.

September and October showcase a stark contrast in weather conditions. In September, temperatures range from a mild 2°C (35°F) at night to a warm 29°C (85°F) during the day, with an average of 16°C (61°F). The month is relatively wet, with 159 mm (6.3 in) of precipitation over 12 days, maintaining a humidity level of 64%. In comparison, October brings cooler temperatures, with a minimum of 0°C (31°F) and an average of 11°C (52°F), peaking at a comfortable 24°C (76°F). Precipitation decreases to 98 mm (3.9 in) over just 9 days, and humidity rises to 83%. For more detailed information about October weather, you can visit Jezero weather in October.

In comparing the weather of September and November, a significant shift in temperature and humidity becomes evident. September enjoys warmer conditions, with daily averages around 16°C (61°F) and maximums peaking at 29°C (85°F), whereas November sees a drop to an average of just 6°C (44°F), with highs rarely exceeding 18°C (65°F). Additionally, November is much colder, showcasing a minimum temperature that can dip down to -6°C (22°F). Precipitation levels are relatively similar, with September experiencing 159 mm (6.3 in) over 12 days and November slightly lower at 131 mm (5.2 in) across 11 rainy days. Notably, November brings increased humidity at 89%, compared to September's 64%. For more detailed insights on November weather, you can visit Jezero weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of 2°C (35°F) to a maximum of 29°C (85°F), with an average of 16°C (61°F), offering a warm and pleasant climate. The month experiences a total of 159 mm (6.3 in) of precipitation over 12 days, while humidity averages 64%.

In contrast, December features much colder temperatures, with a minimum of -15°C (6°F) and a maximum of 14°C (58°F), resulting in a significantly lower average of 2°C (36°F). The precipitation decreases to 121 mm (4.8 in) over 10 days, but humidity rises to 88%, contributing to a damp and chilly atmosphere. For more detailed insights, you can check the Jezero weather in December.

Compare Jezero's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Jezero

As September arrives in Jezero, the weather begins to transition, ushering in a more mild climate compared to the summer months. With average temperatures hovering around 16°C, the days are pleasantly warm, yet the nights can dip to a cool 2°C, creating a refreshing contrast. The notable increase in precipitation, totaling 159 mm spread across approximately 12 days, indicates a shift towards a wetter season, setting the stage for the vibrant autumn colors to emerge. The humidity level also rises to 64%, enhancing the crispness of the air. This blend of moderate temps and increasing moisture distinguishes September's charm, inviting visitors to experience the allure of Jezero during this picturesque time of year. For more details on what to expect throughout the year, check out the Jezero Climate.