Last updated: March 17, 2025
In September, Senj, Croatia, experiences a delightful transition into autumn, with temperatures ranging from a maximum of 28°C (83°F) to a refreshing minimum of 4°C (39°F), averaging around 16°C (61°F). This month sees an increase in humidity at 64%, coupled with an average precipitation of 170 mm (6.7 in) across about 11 days, making it the perfect time to witness the beauty of changing landscapes. Whether you’re exploring the scenic coastline or enjoying local festivities, September in Senj offers a unique blend of warmth and refreshing breezes.
In September, Senj, Croatia, begins to transition from the summer heat, offering a delightful mix of warmer days and cooler nights. With a minimum temperature of 4°C (39°F) and a pleasant average of 16°C (61°F), this month strikes a lovely balance for those still seeking sun-soaked escapades. The maximum temperature can reach up to 28°C (83°F), making it an inviting time for outdoor activities and beach enjoyment before the autumn chill sets in. Compared to the sweltering highs of August, where temperatures peaked at 35°C (95°F), September’s climate creates a more comfortable ambiance, perfect for exploring the scenic charm of this coastal town. Overall, the gradual cool-down invites a reflective yet vibrant atmosphere, marking the end of summer while still offering ample opportunity for adventure.
September in Senj, Croatia, marks a significant shift in the climate, as it experiences 170 mm (6.7 in) of precipitation over 11 days. This notable increase follows the relatively drier summer months of June, July, and August, which each saw around 79 mm to 91 mm of rainfall. The lush atmosphere of September hints at the arrival of autumn, with precipitation levels closer to those of late autumn months like October and November. This trend illustrates a transition from the warm, mild summer to the cooler, rainier season, making September a pivotal month for both the landscape and weather patterns in Senj.
As summer fades, September in Senj, Croatia, brings a gentle rise in humidity, settling at 64%. This month marks a transition from the dry, warm days of August, which boasted a comfortable 51% humidity, to a more humid environment as autumn approaches. Observing the trends throughout the year, we see a steady decline in humidity from the chilly, damp days of winter, where levels hover around 88% in January and December, to the summer's lowest point in July at just 63%. However, September serves as a reminder that comfort returns with the onset of fall, preparing the region for the wetter months ahead. This subtle shift not only enhances the lush landscapes but also invites residents and visitors alike to savor the beauty of the changing seasons.
In September, Senj, Croatia experiences a UV Index of 7, indicating a high level of sun exposure, which means visitors should remain cautious while enjoying the warm weather. As the summer season transitions into autumn, the UV levels drop slightly from August's peak of 8, but the burn time remains at about 25 minutes, emphasizing the necessity for sun protection. This trend of decreasing UV intensity is mirrored in the months leading into autumn, as indicated by October's moderate UV Index of 5. For those planning outdoor activities in September, it's crucial to stay informed about sun safety to fully enjoy Senj's beautiful landscapes. For more details, visit Senj UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Senj, Croatia offers a delightful mix of warmth and sunshine, with 331 hours of sunlight illuminating the picturesque coastal town. This decline from the peak bright days of July and August—which boast 431 and 400 hours respectively—reflects a natural shift in the seasons. Yet, September still shines brightly compared to earlier months, outshining October’s 302 hours and evoking a sense of lingering summer bliss. The gradual decrease in daylight is an invitation for visitors to savor outdoor adventures against a backdrop of stunning sunsets, making it the perfect time to explore the charming streets of Senj before the winter clouds settle in.
As September rolls into Senj, Croatia, the chances of basking in sunny weather remain relatively high, with a 57% likelihood of sunshine. This positions September favorably alongside the peak summer months of July and August, which also boast similar percentages of clear skies. Notably, the month benefits from transitioning weather patterns, as temperatures start to soften from the summer heat while maintaining ample sunshine. Compared to earlier months such as April and May, where sunny days drop to 37% and 38% respectively, September strikes a delightful balance, making it an appealing time for outdoor activities and sightseeing. With these encouraging trends, visitors can look forward to enjoying the vibrant landscape of Senj under a golden sun.
As summer begins to fade into autumn, September in Senj, Croatia, offers a delightful 12 hours of daylight. This month sees a gradual decline from the sun-drenched days of July and June, where daylight peaks at 15 hours. The trend reflects the transition from the vibrant summer months, characterized by long, sunlit evenings, towards the shorter days of fall, with October bringing just 10 hours of daylight. September stands as a harmonious month, blending the lingering warmth of summer with the crispness of autumn, making it an ideal time for outdoor activities and exploration in this picturesque coastal town. As the days shorten, the enchanting sunsets become a captivating reminder of the changing seasons.
As September rolls into Senj, Croatia, the coastal winds begin to gentle, with an average speed of 2.0 m/s (4 mph), reflecting a subtle shift from the summer's breezy warmth. Compared to the preceding months, where the winds rarely dropped below 2.1 m/s, this slight decrease signals a transition towards the calmer autumn months. With the season's change, visitors can enjoy the mild weather and serene coastal views, making September an ideal time for outdoor activities without the biting winds of winter. As the year unfolds, October brings a modest rise in wind speeds again, reaching 2.8 m/s (6 mph), hinting at the dynamic weather patterns that characterize the region.
The weather in Senj 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 Senj and find detailed weather information for every month.
September and January present stark contrasts in weather conditions. In September, temperatures range from a cool 4°C (39°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). The month experiences significant precipitation, totaling 170 mm (6.7 in) over 11 days, accompanied by a moderate humidity level of 64%. In contrast, January is much colder, with temperatures plummeting to a minimum of -17°C (1°F) and peaking at only 12°C (54°F), averaging around 0°C (33°F). Despite receiving less precipitation at 87 mm (3.4 in) over the same number of days, January's higher humidity, at 88%, can make the cold feel even more intense. For a more detailed look at January weather specifically in Senj, visit Senj weather in January.
September and February present contrasting weather patterns, reflecting the transition from late summer to winter. In September, temperatures range from a mild 4°C (39°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). The month experiences around 170 mm (6.7 in) of precipitation over approximately 11 days, accompanied by a humidity level of 64%. In contrast, February brings colder conditions, with minimum temperatures dropping to a frigid -13°C (10°F) and an average of just 3°C (38°F). The maximum temperature reaches 19°C (67°F), and the month sees about 126 mm (5.0 in) of precipitation spread across 13 days, alongside a higher humidity of 82%. For more details, check out Senj weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a mild 4°C (39°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). This month also experiences a significant amount of rain, totaling 170 mm (6.7 in) over 11 days, alongside a moderate humidity level of 64%.
In contrast, March is much colder, with minimum temperatures plunging to -14°C (7°F) and a daily maximum of 19°C (67°F), averaging just 5°C (42°F). While it receives less precipitation at 95 mm (3.7 in), it also has the same number of wet days (11) as September, though the humidity is slightly higher at 73%. For a detailed look at March weather, you can visit Senj weather in March.
When comparing the weather in September to that in April, a few notable differences emerge. September typically boasts milder temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 28°C (83°F), with an average of 16°C (61°F). In contrast, April starts off cooler, with temperatures dipping as low as -6°C (22°F) and averaging 10°C (50°F), reaching a maximum of 25°C (77°F). While September sees higher precipitation at 170 mm (6.7 in) over 11 days, April has lesser rainfall at 108 mm (4.3 in) across 12 days. Additionally, April's humidity is a bit higher at 73%, compared to September's 64%. For more insights on the weather during this spring month, you can refer to Senj weather in April.
Comparing the weather in September and May reveals some interesting contrasts. September enjoys warmer temperatures, with averages around 16°C (61°F) and maximums reaching 28°C (83°F), while May’s temperatures are slightly cooler, averaging 14°C (57°F) and peaking at 27°C (81°F). However, May experiences more frequent rain, with precipitation recorded on 19 days and slightly higher total rainfall at 177 mm (7.0 in) compared to September's 170 mm (6.7 in) over 11 days. Humidity levels in May are also higher at 70%, compared to September's 64%. For a detailed look at May weather in Senj, you can visit Senj weather in May.
The comparison between September and June weather reveals some notable differences. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 28°C (83°F), with an average of 16°C (61°F), while June enjoys warmer conditions, with temperatures starting at 7°C (46°F) and peaking at 33°C (92°F), averaging 19°C (67°F). September also experiences significantly higher precipitation, totaling 170 mm (6.7 in) over 11 days, in contrast to June's 79 mm (3.1 in) across 9 days. Despite slightly lower humidity in September at 64%, both months are relatively humid, with June showing a slightly higher humidity level at 69%. For more details, you can check out Senj weather in June.
In comparing the weather patterns of September and July, we see distinct differences in temperature and precipitation. July features a minimum temperature of 11°C (52°F), with an average of 21°C (70°F) and a maximum reaching 33°C (91°F), making it the warmer month. In contrast, September experiences cooler temperatures, ranging from a minimum of 4°C (39°F) to an average of 16°C (61°F) and a maximum of 28°C (83°F). Additionally, September sees more precipitation, with 170 mm (6.7 in) across 11 days, compared to July's 79 mm (3.1 in) over 9 days. Humidity levels are similar in both months, at 64% for September and 63% for July. For a closer look at July's weather specifically, you can check out Senj weather in July.
When comparing the weather in September to that of August, it is clear that September experiences cooler temperatures overall, with minimums dropping to 4°C (39°F) compared to August's minimum of 9°C (49°F). The average temperature in September is also lower at 16°C (61°F), while August boasts a warmer average of 21°C (71°F). Additionally, September sees significantly more precipitation, with 170 mm (6.7 in) over 11 days, in contrast to August's 91 mm (3.6 in) across 9 days. Humidity rises in September to 64%, compared to 51% in August. For those interested in detailed August weather patterns, you can check out Senj weather in August.
September generally features warmer temperatures compared to October, with minimums of 4°C and averages around 16°C, peaking at 28°C. In contrast, October sees cooler conditions, with a minimum of 1°C and an average of 11°C, reaching a maximum of 23°C. Both months experience precipitation, but September has more, with 170 mm over 11 days compared to October's 116 mm over 10 days. Additionally, October tends to be more humid, with humidity levels reaching 83% compared to September's 64%. For more detailed insights about October weather, you can check Senj weather in October.
September and November exhibit notable differences in weather patterns. September is characterized by milder temperatures, with a minimum of 4°C (39°F), an average of 16°C (61°F), and a maximum of 28°C (83°F). The month sees significant precipitation of 170 mm (6.7 in) over 11 days, accompanied by a humidity level of 64%. In contrast, November experiences much cooler conditions, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 19°C (66°F) and an average of 7°C (45°F). Although November has slightly lower precipitation at 151 mm (5.9 in), it lasts over 14 days and enjoys higher humidity at 89%. For more details on November weather, you can visit Senj weather in November.
September and December showcase quite contrasting weather patterns. In September, temperatures range from a mild 4°C (39°F) to a warm 28°C (83°F), with an average temperature of 16°C (61°F). The month sees around 170 mm (6.7 in) of precipitation over approximately 11 days and a moderate humidity of 64%. In contrast, December brings chillier conditions, with temperatures dropping significantly, ranging from a minimum of -10°C (13°F) to a maximum of 14°C (58°F) and an average temperature of just 3°C (38°F). The precipitation remains similar, totaling 168 mm (6.6 in) over 14 days, but the humidity rises to a higher 88%. For more detailed insights on December weather, visit Senj weather in December.
As summer transitions into autumn, September in Senj presents a unique blend of warmth and refreshing breezes. Temperatures are notably milder compared to the peak summer months, making outdoor activities enjoyable without the sweltering heat. While rainfall is more frequent, contributing to a lush landscape, the overall humidity remains moderate. This month serves as a bridge between the sweltering summer days and the cooler autumn nights, with an inviting atmosphere that is perfect for exploring the beauty of Senj. For a deeper dive into the climate patterns throughout the year, check out Senj Climate.