September Weather in Vir, Croatia

Last updated: March 17, 2025

September in Vir, Croatia offers a delightful blend of warm days and cooler evenings, perfect for enjoying the late summer vibe. With maximum temperatures reaching 28°C (83°F) and an average of 22°C (71°F), outdoor adventures abound. However, travelers should be prepared for some rain, as the month typically sees about 140 mm (5.5 in) of precipitation over approximately 8 days. The humidity level hovers around 64%, contributing to a comfortable yet refreshing atmosphere. Whether you're lounging by the beach or exploring the local culture, September in Vir promises a captivating coastal experience.

September Temperature in Vir

September in Vir, Croatia, marks a delightful transition as summer begins to wane. With minimum temperatures around 13°C (55°F) and pleasant averages of 22°C (71°F), the month offers a perfect blend of warmth without the summer crowds. The highs can reach a cozy 28°C (83°F), ideal for enjoying outdoor activities and basking in the sun. As the autumn breeze starts to creep in, visitors can experience a more serene atmosphere, making it a wonderful time to explore the stunning landscapes and rich culture of this beautiful region. Overall, September strikes a perfect balance between lingering summer warmth and the gentle onset of fall.

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

The chart illustrates September temperature patterns in Vir, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec474951576472767871645852
Data source: Temperature data for Vir 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 Vir

September in Vir, Croatia, marks a noticeable shift in precipitation patterns, as the month receives 140 mm (5.5 in) of rainfall over approximately 8 days. This significant increase sets it apart from the drier summer months, where July and August each saw just 29 mm (1.2 in). The onset of autumn brings not only higher rainfall but also prepares the landscape for vibrant seasonal changes. Overall, September serves as a bridge, transitioning from the relatively dry spell of summer into the wetter months ahead, with October following closely at 125 mm (4.9 in). This trend highlights the region’s evolving climate as it adjusts to seasonal shifts, underscoring the importance of preparation for both residents and travelers alike.

September Precipitation Trends in Vir

The chart displays monthly precipitation patterns in Vir, 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.
JanFebMarAprMayJunJulAugSepOctNovDec92104845668193029140125199191
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Vir

As summer transitions to autumn, September in Vir, Croatia experiences a slight uptick in humidity, averaging 64%. This marks a notable shift from the 51% humidity of August, indicating the gradual reintroduction of moisture to the air. While September's values are a moderate increase, they still reflect a smaller figure compared to the winter months, which typically soar above 80%. Thus, as the season changes, residents and visitors can expect a refreshing, albeit slightly more humid, atmosphere that hints at the cooler and damper months ahead.

September Average Humidity in Vir

This chart illustrates the average monthly humidity levels in Vir, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
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 Vir

As September rolls into Vir, Croatia, the UV Index remains notably high at 7, indicating a considerable risk of harm from unprotected sun exposure; however, this marks a gentle decline from the peak summer months. With a burn time of around 25 minutes, sun seekers should still exercise caution, especially considering the very high levels experienced in July and August. This trend showcases the gradual transition from the intense sun of summer, where UV levels soared to 9, to a more moderate exposure as autumn approaches. As temperatures begin to cool, it's essential to stay mindful of UV protection—details on the UV Index can be found here: Vir UV Index.

Maximum UV Index Levels in Vir for September

The chart shows the monthly maximum UV Index (UVI) for Vir 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.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Vir 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 Vir

September in Vir, Croatia, offers a delightful balance of warmth and sunshine, boasting 342 hours of radiant daylight. As summer transitions to fall, sunshine hours begin to taper off from the high of 435 hours in July, yet September still shines brightly compared to the earlier months of the year. This month reflects the gradual decline in sunshine as it follows the peak of summer, yet remains significantly brighter than both October and November. Visitors can indulge in pleasantly warm afternoons, soaking up the last rays of summer before the cooler months set in, making September an ideal time for both relaxation and exploration.

Monthly Sunshine Duration in Vir: September Highlighted

The September sunshine duration represents the total number of hours Vir 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.
JanFebMarAprMayJunJulAugSepOctNovDec192h241h325h360h398h423h435h405h342h310h239h232h
Data source: Vir September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vir During September

As summer gives way to autumn, September in Vir, Croatia, presents a delightful opportunity for sun seekers, boasting a 65% chance of sunny weather. This month stands out with a solid likelihood of sunshine, only slightly lower than the peak of summer months like August, which enjoys a 68% sunshine probability. While the sunshine percentage dips from the warmer months, it remains well above average compared to the rest of the year. Notably, September's sunny disposition positions it favorably against the cooler transitional months, providing a delightful window for outdoor activities and scenic beach days before autumn sets in. This trend makes Vir an appealing destination for those hoping to capture the tail end of summer's warmth.

Percentage of Sunny Days in September in Vir

The chart illustrates the percentage of sunny days in Vir 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 Vir experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%50%67%51%51%63%63%68%65%55%30%43%
Data source: Vir September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vir in September

As September arrives in Vir, Croatia, the daylight begins to wane, settling at 12 hours—a gentle reminder of the transition from the vibrant summer months to the cozy embrace of autumn. Following the peak daylight hours of 15 in June and July, the gradual decline continues with August's 13 hours. This trend reflects the diminishing brightness as the sun's journey shifts, preparing for the shorter days of October, which offers just 10 hours of sunlight. The passage through these months highlights the rhythmic beauty of nature’s cycle, inviting visitors to enjoy the lingering warmth of early fall while it lasts.

Average Daylight Hours in Vir for September

The chart illustrates the variation in daylight duration in Vir throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 15m10h 27m11h 56m13h 28m14h 47m15h 27m15h 6m13h 56m12h 28m10h 56m9h 35m8h 53m
Data source: Vir daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Vir

As summer fades into fall, the September wind in Vir, Croatia offers a subtle change in its character. Averaging 3.2 m/s (7 mph), the wind gently whispers tales of the vibrant summer months now behind us. This dip from the higher summer speeds showcases the transition as autumn approaches, with a notable softness compared to the slight breezes of July and August. However, September remains a time of tranquil winds, setting the perfect backdrop for serene afternoons by the Adriatic Sea. As the year progresses into October and November, we see an increase in wind speeds once again, hinting at the invigorating gusts to come, but for now, the September breeze invites leisurely moments and peaceful reflections.

Average September Wind Speed in Vir

The chart displays monthly wind speed patterns in Vir, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.84.44.04.23.83.03.63.73.2 m/s4.65.04.4
Data source: Vir September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Vir Compares to Other Months

The weather in Vir 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 Vir and find detailed weather information for every month.

September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 13°C (55°F) at night to a warm 28°C (83°F) during the day, with an average of 22°C (71°F). This month typically sees 140 mm (5.5 in) of rainfall over 8 days, accompanied by a moderate humidity level of 64%. In contrast, January experiences much colder temperatures, with a minimum of -4°C (25°F) and a maximum of only 15°C (59°F), averaging just 8°C (47°F). The month also receives about 92 mm (3.6 in) of precipitation over 9 days but has higher humidity at 88%. For more detailed weather insights, you can visit Vir weather in January.

September and February showcase striking contrasts in weather. In September, temperatures range from a mild 13°C (55°F) to a warm 28°C (83°F), offering an average of 22°C (71°F) and a moderate level of humidity at 64%. This month also sees about 140 mm (5.5 in) of precipitation over approximately 8 days. In contrast, February experiences much cooler conditions, with temperatures dipping down to a minimum of -3°C (27°F) and peaking at 15°C (59°F), resulting in an average temperature of only 10°C (50°F). Despite having slightly less precipitation at 104 mm (4.1 in) over 11 days, February's humidity is significantly higher at 82%. This stark difference highlights how September offers a much warmer and drier climate compared to the chilly and damp conditions of February. For more detailed information about February weather, you can visit Vir weather in February.

When comparing the weather in September and March, there is a stark contrast in temperatures and overall climate. September typically enjoys mild and pleasant conditions with an average temperature of 22°C (71°F), peaking at 28°C (83°F). However, it also sees a fair amount of rainfall, averaging 140 mm (5.5 in) over 8 days, with humidity levels around 64%. In contrast, March is considerably cooler, with an average temperature of just 11°C (51°F), maximum temperatures reaching 17°C (62°F), and even dipping as low as -4°C (25°F) at night. Rainfall in March is lower at 84 mm (3.3 in), also spread over 8 days, but with a higher humidity level of 73%. This makes March feel more brisk and chilly compared to the warmth of September. For more details on March weather, you can refer to Vir weather in March.

When comparing the weather in September and April, it’s clear that September tends to be warmer and more humid. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 28°C (83°F), with an average of 22°C (71°F) and a humidity level of 64%. In contrast, April experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 21°C (70°F), averaging only 14°C (57°F) and a slightly higher humidity of 73%. Additionally, September sees significantly more precipitation with 140 mm (5.5 in) over 8 days, compared to April's 56 mm (2.2 in) across 7 days. For more detailed information on April weather, you can check Vir weather in April.

In comparing the weather between September and May, we observe marked differences in temperature and precipitation. September boasts a wider temperature range, with minimums around 13°C (55°F) and maximums reaching up to 28°C (83°F), resulting in an average of 22°C (71°F). In contrast, May has a cooler range, with minimums of 9°C (49°F) and maximums of 24°C (76°F), averaging only 18°C (64°F). Additionally, September experiences significantly more rainfall, with 140 mm (5.5 in) over 8 days, while May sees a milder 68 mm (2.7 in) over 9 days. Humidity levels are also slightly higher in May at 70%, compared to September's 64%. For more detailed information about May weather, you can visit Vir weather in May.

September and June exhibit similar average temperatures, with September ranging from a minimum of 13°C (55°F) to a maximum of 28°C (83°F) and June showing slightly higher minimum and maximum temperatures of 15°C (60°F) and 29°C (84°F), respectively. However, September experiences significantly higher precipitation, with 140 mm (5.5 in) over 8 days, compared to June's modest 19 mm (0.7 in) over just 4 days. Additionally, humidity levels are slightly lower in September at 64%, while June's humidity sits at 69%. For a detailed look at June weather, you can refer to Vir weather in June.

In comparison to July, September experiences cooler temperatures, with minimums dropping to 13°C (55°F) and an average of 22°C (71°F), compared to July's warmer minimum of 19°C (67°F) and average of 25°C (76°F). While both months have relatively high humidity levels—63% in July and 64% in September—September tends to be wetter, receiving 140 mm (5.5 in) of precipitation over about 8 days, unlike July's much drier 29 mm (1.2 in) over just 3 days. For a detailed breakdown of July weather, you can visit Vir weather in July.

In comparing the weather between August and September, it's clear that September experiences cooler temperatures overall, with a minimum of 13°C (55°F) and an average of 22°C (71°F), compared to August's warmer minimum of 17°C (63°F) and average of 25°C (78°F). While August sees only 29 mm (1.2 in) of precipitation over 3 days and lower humidity at 51%, September is much wetter, receiving 140 mm (5.5 in) of rain across 8 days and higher humidity at 64%. This shift in weather makes September feel more autumnal, while August retains a more summery, dry warmth. For more details, check out Vir weather in August.

September typically offers warmer temperatures with averages around 22°C (71°F) and maxima reaching up to 28°C (83°F). In contrast, October sees a noticeable drop, with average temperatures around 18°C (64°F) and a maximum of 23°C (74°F). While September experiences around 140 mm of rain over 8 days, October has slightly less precipitation at 125 mm distributed over 9 days. Additionally, October's humidity rises to 83%, creating a more humid environment compared to September's 64%. For more detailed weather updates, check the Vir weather in October.

September typically offers milder weather with a minimum temperature of 13°C (55°F) and an average high of 28°C (83°F), making it a comfortable month for outdoor activities. With an average precipitation of 140 mm (5.5 in) spread over about 8 days, the humidity level is relatively moderate at 64%. In contrast, November sees a notable drop in temperatures, with a minimum of just 5°C (42°F) and an average high of 21°C (69°F). Rainfall increases significantly to 199 mm (7.8 in) over 15 days, resulting in much higher humidity at 89%. For a detailed look at November weather specifics, check Vir weather in November.

In September, the weather features mild temperatures with a minimum of 13°C (55°F), an average of 22°C (71°F), and a pleasant maximum of 28°C (83°F). Rainfall is moderate, with about 140 mm (5.5 in) over approximately 8 days, and the humidity hovers around 64%. In contrast, December brings much cooler conditions, with temperatures dipping to a minimum of 3°C (38°F) and an average of only 11°C (52°F), peaking at 17°C (63°F). Precipitation increases to 191 mm (7.5 in) over about 15 days, accompanied by higher humidity levels of 88%. For a detailed look at the weather in December, check out Vir weather in December.

Compare Vir's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Vir

As summer fades, September on Vir offers a pleasant transition into autumn, marked by relatively mild temperatures and an inviting atmosphere. With average daily highs reaching around 22°C (71°F), the warmth remains enjoyable, yet it is notably cooler compared to the peak summer months. This month also welcomes a modest increase in precipitation, with occasional rainfall enhancing the lushness of the landscape. Despite the 64% humidity, the combination of sunshine and occasional showers makes for a refreshing experience. Those planning a visit will find September's climate to be a perfect blend of warmth and tranquility, significantly different from the sweltering heat of July and August. For more details, check out the Vir Climate page.