Last updated: March 17, 2025
September in Slunj, Croatia, offers a dynamic blend of weather as summer transitions to autumn. With maximum temperatures reaching 32°C (90°F) and an average of 16°C (61°F), the month presents a pleasant warmth despite the occasional chill, with lows dipping to 2°C (36°F). Rainfall is not uncommon, contributing to the overall precipitation of 166 mm (6.5 in) over 13 days, resulting in a humidity level of 62% that adds a refreshing touch to the air. Visitors can experience the beauty of nature as it shifts into vibrant autumn hues, all while enjoying a comfortable climate perfect for outdoor exploration.
As September settles in Slunj, Croatia, the temperatures begin to show a gentle shift towards autumn. With minimums around 2°C (36°F) and an invigorating average of 16°C (61°F), the month offers a refreshing reprieve from the summer heat. Highs can reach a pleasant 32°C (90°F), making it perfect for outdoor adventures amidst the stunning landscapes. This transitional period not only invites cool breezes but also showcases nature's changing colors, reflecting the gradual move from the sweltering summer months that peaked in August. Overall, September in Slunj strikes a harmonious balance, where sunny days linger and autumn whispers of cooler times ahead.
September in Slunj, Croatia, marks a significant transition in weather patterns, showcasing a notable increase in precipitation. With 166 mm (6.5 in) of rain falling over 13 days, the month stands out as one of the wettest in the annual cycle. This deluge is a sharp rise from the previous months, hinting at the shift from the drier summer to the more saturated autumn season. Interestingly, this spike in rainfall occurs despite a relatively steady frequency of rainy days, akin to July and August. As autumn approaches, residents and visitors can expect lush greenery rejuvenated by the generous September showers, setting the stage for the colorful foliage that characterizes the upcoming months.
In September, Slunj experiences a moderate humidity level of 62%, marking a transition toward the more humid months that follow. This month stands out as the humidity begins to rise after a summer low of 51% in August, reflecting the gradual shift from the dry warmth of summer to the cooler, damper conditions of autumn. The trend reveals that while September’s humidity is significantly lower than the winter months, which soar to 89% in January and 87% in November, it is also a reminder that the region is on the brink of the wetter season. As such, September serves as a brief interlude, blending the lingering warmth of summer with the impending freshness of fall.
As summer transitions into autumn, September in Slunj, Croatia, offers a notable shift in the UV Index. After experiencing the peak of summer with an index reaching 9 in June and July, September sees a decrease to a UV Index of 7, categorizing it as high. This means sunbathers and outdoor enthusiasts can enjoy about 25 minutes of safe sun exposure before risking a burn. As the warmth of summer begins to fade, it's evident that while the sun's strength diminishes, UV care remains essential. For detailed UV insights, check out Slunj UV Index.
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As summer gently transitions into autumn, September in Slunj, Croatia, basks in a splendid 330 hours of sunshine. This month maintains a warm glow, capturing the vibrant essence of the season as daylight begins to wane. Following the sun-drenched peak of July with its 428 hours, September shows a gracious decline reminiscent of the earlier months. While the days remain pleasantly bright, the sunlight starts to soften, paving the way for the cooler months ahead. This gradual shift highlights a seasonal rhythm, where each month lays the groundwork for the next, making September an enchanting time to experience the beauty of Slunj under the golden rays of the sun.
In Slunj, Croatia, September marks a delightful transition into autumn, boasting a 55% chance of sunny weather. This figure reflects a notable trend, as the likelihood of sunny days peaks during the summer months and remains relatively high in September, just slightly below the summer averages of 51% in both July and August. Following the sun-soaked days of summer, September offers a balance of warmth and manageable humidity, making it an ideal time for outdoor activities. As the year progresses, the chances of sunshine diminish significantly, with October's likelihood dropping to 34%. Thus, September stands out as a final opportunity to enjoy the lingering summer sun before the winter months approach.
As summer fades into autumn, September in Slunj, Croatia, offers a moderate 12 hours of daylight, marking a gentle transition towards shorter days. This month witnesses a gradual decline from the peak of 15 hours enjoyed during the summer months of June and July. As nature begins to prepare for the cooler months ahead, the daylight hours gradually decrease, highlighting the rhythmic shift of the seasons. In comparison to the earlier part of the year, where daylight increased steadily from January's 9 hours to May's 14 hours, September stands as a reminder of the approaching autumn, bridging the vibrant warmth of summer with the soft embrace of fall.
As summer gives way to autumn in Slunj, Croatia, September brings a gentle shift in the winds, with an average speed of 1.7 m/s (4 mph). This marks a continuation of the softer breezes felt in August, creating a calm atmosphere. The trend shows a gradual decline in wind speeds throughout the summer months, with only a slight uptick expected in October, where winds return to 2.3 m/s (5 mph). Overall, September's tranquil winds complement the serene landscapes of Slunj, inviting visitors to enjoy the rich natural beauty and the peaceful rhythms of early fall.
The weather in Slunj changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Slunj and find detailed weather information for every month.
September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 2°C (36°F) at night to a warm 32°C (90°F) during the day, averaging around 16°C (61°F). The month experiences significant rainfall, with 166 mm (6.5 in) falling over 13 days, while humidity levels sit at 62%. Conversely, January is much colder, with temperatures plunging to a minimum of -19°C (-1°F) and averaging just 0°C (33°F), peaking at 15°C (59°F). The precipitation in January is considerably lower at 85 mm (3.4 in) over 12 days, accompanied by higher humidity at 89%. For a closer look at January's specific weather conditions, refer to Slunj weather in January.
September and February present stark contrasts in weather patterns. September typically enjoys a range of temperatures from a minimum of 2°C (36°F) to a maximum of 32°C (90°F), with an average of 16°C (61°F). This month sees an average of 166 mm (6.5 in) of precipitation over 13 days, with humidity levels around 62%. In contrast, February experiences much colder conditions, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 20°C (68°F), averaging only 4°C (39°F). The month also receives about 114 mm (4.5 in) of precipitation over 12 days, accompanied by higher humidity at 83%. For more detailed information, you can check out Slunj weather in February.
In comparing the weather between September and March, we see notable differences in temperature and precipitation. September experiences a wider temperature range, with lows of 2°C (36°F) and highs reaching up to 32°C (90°F), averaging around 16°C (61°F). In contrast, March is much colder, with minimum temperatures plummeting to -14°C (7°F) and a more moderate maximum of 22°C (71°F), resulting in an average temperature of only 6°C (42°F). While September is characterized by higher humidity at 62% and significant precipitation of 166 mm (6.5 in) over 13 days, March, despite having the same number of rainy days, receives less precipitation at 87 mm (3.4 in) and holds a higher humidity level at 75%. For more detailed insights into March weather, you can refer to Slunj weather in March.
When comparing the weather in September and April, distinct differences emerge in both temperature and precipitation. September enjoys a milder temperature range, with averages around 16°C (61°F) and peaks reaching up to 32°C (90°F), while April remains cooler, averaging only 10°C (50°F) and with a maximum of 27°C (81°F). Precipitation levels are higher in September, totaling 166 mm (6.5 in) over approximately 13 days, compared to April's 101 mm (4.0 in) on about 12 days. Additionally, while September has a humidity level of 62%, April is slightly more humid at 72%. For more detailed information on April weather, visit Slunj weather in April.
In comparing the weather of September and May, we notice some notable differences. September typically experiences a wider temperature range, with a minimum of 2°C (36°F) and a maximum of 32°C (90°F), averaging around 16°C (61°F). In contrast, May starts off cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 29°C (84°F), averaging 14°C (58°F).
Rainfall is fairly significant in both months, with September receiving 166 mm (6.5 in) over approximately 13 days, while May sees slightly more precipitation at 174 mm (6.8 in) over 19 days. Humidity levels are also higher in May at 70%, compared to September's 62%. For more detailed information on May weather, you can check Slunj weather in May.
September and June present contrasting weather patterns. In September, temperatures can range from a chilly minimum of 2°C (36°F) to a warm maximum of 32°C (90°F), with an average of 16°C (61°F). This month also sees higher precipitation, totaling 166 mm (6.5 in) over 13 days, and a humidity level of 62%. In contrast, June generally experiences milder temperatures, with lows around 7°C (45°F) and highs reaching 36°C (96°F), averaging at 20°C (68°F). The precipitation in June is lower, measuring 86 mm (3.4 in) while maintaining the same number of rainy days, but with slightly higher humidity at 69%. For a more detailed look at June's climate, you can check Slunj weather in June.
In comparing the weather between September and July, we can see notable differences. September experiences a wider temperature range, with minimums dropping to 2°C (36°F) and maximums reaching up to 32°C (90°F), while the average temperature sits at 16°C (61°F). In contrast, July is generally warmer, with minimum temperatures of 9°C (49°F) and maximums hitting 34°C (94°F), and an average of 21°C (70°F). Additionally, September sees more precipitation at 166 mm (6.5 in) over 13 days, compared to July's 114 mm (4.5 in) over 12 days. Humidity levels are fairly similar, with September at 62% and July slightly higher at 64%. For a detailed look at July weather in this region, you can visit Slunj weather in July.
In comparing the weather of September to August, September shows a notable drop in temperature, with minimums reaching 2°C (36°F) compared to August’s 6°C (44°F). The average temperature in September is also lower at 16°C (61°F), significantly contrasting with August's warmer average of 21°C (70°F). While September can peak at a still warm 32°C (90°F), it lacks the extreme highs of August, which can soar up to 38°C (101°F). Additionally, September experiences more precipitation, totaling 166 mm (6.5 in) over 13 days, compared to August's 115 mm (4.5 in) over the same number of days. The humidity is higher in September at 62%, while August maintains a lower level of 51%. For a detailed look at August weather patterns, you can refer to Slunj weather in August.
September and October showcase a distinct shift in weather patterns. September is characterized by a wider temperature range, with minimums around 2°C (36°F) and maximums reaching up to 32°C (90°F), averaging out at 16°C (61°F). It also experiences considerable precipitation, accumulating 166 mm (6.5 in) over 13 days. In contrast, October sees cooler temperatures, with minimums dropping to -1°C (30°F) and averages at 11°C (52°F), while maximums are more moderate at 24°C (76°F). Rainfall decreases slightly to 129 mm (5.1 in) over 10 days, although humidity rises to 81%. For more detailed weather information specific to Slunj, check Slunj weather in October.
September and November exhibit notable differences in weather patterns. September typically enjoys milder temperatures, with lows around 2°C (36°F) and highs reaching up to 32°C (90°F), averaging 16°C (61°F). It also sees a moderate amount of precipitation at 166 mm (6.5 in) over about 13 days, with a humidity level of 62%. In contrast, November brings a significant drop in temperatures, with minimums plunging to -7°C (19°F) and an average of 7°C (44°F), peaking at 20°C (67°F). The month records slightly less precipitation at 155 mm (6.1 in) but experiences higher humidity levels at 87%, over 15 days of rain. For more details on the weather specifics, visit Slunj weather in November.
September and December offer strikingly different weather conditions. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 32°C (90°F), with an average of 16°C (61°F). The month typically experiences 166 mm (6.5 in) of precipitation over about 13 days, resulting in a humidity level of 62%. In contrast, December sees much colder temperatures, with a minimum of -12°C (11°F) and a maximum of only 16°C (61°F), leading to an average temperature of just 3°C (37°F). Precipitation slightly decreases to 144 mm (5.7 in), occurring over 14 days, but the humidity rises significantly to 88%. For more detailed information, you can check Slunj weather in December.
As summer makes its graceful exit, September in Slunj offers a delightful interplay of warmth and coolness, creating a unique weather experience unlike any other month. With temperatures reaching a pleasant maximum of 32°C, the balmy days can still feel reminiscent of summer, while the cooler nights bring a refreshing change. The month is marked by a touch more humidity, along with a variety of rainfall that totals around 166 mm over 13 days, nourishing the lush landscapes. This transition period not only enhances the picturesque beauty of Slunj but also invites visitors to enjoy outdoor activities under the pleasantly crisp air. To explore more about the climate nuances throughout the year, visit Slunj Climate.