September Weather in Vrbnik, Croatia

Last updated: March 17, 2025

In Vrbnik, Croatia, September boasts a pleasant climate characterized by a maximum temperature reaching up to 29°C (85°F), while the average temperature hovers around a comfortable 19°C (66°F). Nights can bring a refreshing chill with minimum temperatures dipping to 8°C (46°F). Visitors can expect a mild yet noticeable amount of rainfall, totaling 172 mm (6.8 in) over 11 days, contributing to the lush landscapes. The humidity levels sit at a moderate 64%, making this month an inviting time to explore the charming coastal town and enjoy its stunning natural beauty.

September Temperature in Vrbnik

As summer gracefully transitions to autumn in Vrbnik, Croatia, September brings a delightful change in temperatures. With minimums around 8°C (46°F) and averages settling at 19°C (66°F), the month offers a pleasant warmth that still invites outdoor adventures. The maximum temperatures can reach up to 29°C (85°F), providing lingering days of summer sunshine ideal for enjoying the picturesque landscape and pristine beaches. This moderate climate, cooler than the sweltering summer months but still inviting, makes September an enchanting time for visitors seeking both relaxation and exploration in this charming coastal town. As the nights grow a bit chillier, layers become a trusty companion, making evening strolls through Vrbnik's quaint streets even more inviting.

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

The chart illustrates September temperature patterns in Vrbnik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404446536170747566585044
Data source: Temperature data for Vrbnik 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 Vrbnik

In September, Vrbnik, Croatia experiences a notable increase in precipitation, with an impressive 172 mm (6.8 in) of rainfall spread over 11 days. This spike marks the end of summer as the region transitions into autumn, significantly outpacing the milder precipitation amounts of the preceding months. The lush landscapes are rejuvenated, setting the stage for a vibrant fall. Comparing September's totals to the drier summer months, where rainfall barely exceeded 60 mm, it's evident that the balance of nature shifts dramatically as the season changes, highlighting Vrbnik's rich agricultural bounty nurtured by this seasonal deluge. As October approaches, the rainfall remains robust but starts to taper off, signaling the gradual move into the cooler, wetter months ahead.

September Precipitation Trends in Vrbnik

The chart displays monthly precipitation patterns in Vrbnik, 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.
JanFebMarAprMayJunJulAugSepOctNovDec981399186136495759172124171205
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vrbnik

As summer gives way to autumn in Vrbnik, Croatia, September sees a noticeable shift in humidity levels. Following the warm, dry months of July and August, where humidity dropped to a low of 51%, September experiences a slight increase, settling at 64%. This uptick signals the onset of a more humid climate as the region prepares for the wetter conditions typical of fall. Interestingly, while September's humidity is higher than the previous two months, it remains significantly lower than the winter months, when levels peak again at 88% in January. The transition from August to September marks a pivotal moment in Vrbnik's weather pattern, hinting at the cozy, crisp days of autumn ahead.

September Average Humidity in Vrbnik

This chart illustrates the average monthly humidity levels in Vrbnik, 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 Vrbnik

As summer transitions to autumn, the UV Index in Vrbnik, Croatia, begins to decline in September, measuring 7 and categorized as high, allowing for a comfortable burn time of 25 minutes. This month signals a gradual decrease from the peak UV Index of 9 seen in July and June, where sun exposure is rated as very high with a much shorter burn time of just 15 minutes. Meanwhile, the UV levels in the earlier spring months were notably lower, with a maximum of 5 in March, highlighting a clear trend of increasing sun intensity as the calendar progressed towards summer. As October approaches, Vrbnik will see the UV Index dip further to 5, reflecting the seasonal change. This shift encourages outdoor enthusiasts to still enjoy the sun while practicing safe sun habits. For more detailed UV insights, visit Vrbnik UV Index.

Maximum UV Index Levels in Vrbnik for September

The chart shows the monthly maximum UV Index (UVI) for Vrbnik 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: Vrbnik 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 Vrbnik

In Vrbnik, Croatia, the warmth of September continues the summer's generous embrace, bestowing 331 hours of sunshine that gently transition the town into autumn's charm. After basking in the height of summer with its peak of 431 hours in July, sunlight starts to wane in the coming months, yet September still radiates a delightful glow, perfect for exploring the picturesque streets and vineyards. As the days grow shorter, the gradual decrease in sunshine hours signals a shift in the season, but still invites travelers to celebrate the lingering warmth and beauty of the Adriatic coastline. The pleasant balance of sun and mild temperatures makes September an ideal time to experience Vrbnik’s rich culture and breathtaking landscapes before the sun’s departure deepens into the softer light of autumn.

Monthly Sunshine Duration in Vrbnik: September Highlighted

The September sunshine duration represents the total number of hours Vrbnik 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.
JanFebMarAprMayJunJulAugSepOctNovDec184h233h319h349h383h417h431h400h331h302h228h221h
Data source: Vrbnik September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vrbnik During September

As summer gradually gives way to autumn, September in Vrbnik, Croatia showcases a promising 60% chance of sunny weather, making it one of the sunniest months of the year. This statistic reflects a slight decrease from the peak sunshine of July and August, which both enjoy robust 62% sunshine likelihood. Interestingly, while the chance of sun dips, September's warmth often lingers, providing a perfect backdrop for enjoying the scenic coastal landscapes. Compared to earlier months, like April and May with their 42%, September stands out as a favorable choice for sun-seekers, blending the vibrant energy of summer with the tranquil charm of early fall. Overall, Vrbnik in September offers a delightful mix of sun and solace, ideal for travelers looking to experience Croatia's beauty before the cooler months set in.

Percentage of Sunny Days in September in Vrbnik

The chart illustrates the percentage of sunny days in Vrbnik 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 Vrbnik experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec25%39%64%43%42%62%56%63%61%46%26%36%
Data source: Vrbnik September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vrbnik in September

As summer bids adieu, September in Vrbnik, Croatia ushers in a gentle transition with approximately 12 hours of daylight. This month marks a gradual decline from the sun-soaked 15 hours enjoyed in July and June, hinting at the approaching autumn. The daylight hours now begin to shorten as the landscape shifts, paving the way for a cooler climate. Following the vibrant hues of summer, September offers a delightful blend of lingering warmth and shorter days, making it an ideal time for scenic strolls amid the charming streets of Vrbnik before the daylight dwindles to 10 hours in October. This dance of light and shadow beautifully reflects nature's cycle, inviting both locals and visitors to savor the last glimpses of summer before autumn takes its stage.

Average Daylight Hours in Vrbnik for September

The chart illustrates the variation in daylight duration in Vrbnik throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 11m10h 24m11h 56m13h 31m14h 51m15h 32m15h 10m13h 59m12h 28m10h 54m9h 31m8h 48m
Data source: Vrbnik daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Vrbnik

As September unfolds in Vrbnik, Croatia, the gentle whispers of the September wind blow through the charming streets, averaging 2.8 m/s (6 mph). This marks a slight decrease compared to the summer months, where the winds danced at around 3.0 m/s (7 mph) in August. With autumn approaching, the wind's soft embrace offers a serene transition, contrasting sharply with the increasing gusts expected in October, which rise to 4.2 m/s (9 mph). This gradual decline in wind speed during September reflects the shifting season and invites visitors to savor the tranquil beauty of Vrbnik as summer warmth lingers, paving the way for the vibrant hues of fall.

Average September Wind Speed in Vrbnik

The chart displays monthly wind speed patterns in Vrbnik, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.73.33.23.12.32.73.02.8 m/s4.24.03.4
Data source: Vrbnik September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Vrbnik Compares to Other Months

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

In September, the weather is typically mild and warm, with average temperatures ranging from a cool 8°C (46°F) at night to a warm 29°C (85°F) during the day. The month sees about 172 mm (6.8 in) of rainfall spread over 11 days, accompanied by a moderate humidity level of 64%. In contrast, January presents a starkly different climate, characterized by colder temperatures that hover between -11°C (13°F) at night and a maximum of 14°C (58°F) during the day. The precipitation in January is lower, at 97 mm (3.8 in) across 10 days, yet the humidity is notably higher at 88%. For more details on the weather in January, you can check out Vrbnik weather in January.

September and February present markedly different weather conditions. In September, temperatures range from a mild 8°C (46°F) at night to a warm 29°C (85°F) during the day, with an average of 19°C (66°F). The month experiences a significant amount of rainfall, totaling 172 mm (6.8 in) over approximately 11 days, while humidity is a moderate 64%.

In contrast, February is considerably colder, with temperatures dipping as low as -8°C (18°F) and an average of just 7°C (44°F). The month receives slightly less precipitation at 139 mm (5.5 in) but over a greater number of days, about 13. Additionally, February's humidity is higher at 82%, contributing to a much different overall feel compared to the warmer September weather. For more details, check out Vrbnik weather in February.

In comparing the weather of September and March, we can see a notable contrast in temperatures and conditions. September boasts a more temperate climate with average highs reaching up to 29°C (85°F) and a comfortable average of 19°C (66°F), making it a pleasant month for outdoor activities. In contrast, March experiences much cooler temperatures, with average highs only hitting 19°C (67°F) and a stark low of -9°C (16°F).

Precipitation levels also vary significantly between the two months; September receives more rainfall, totaling 172 mm (6.8 in) over 11 days, while March has a lower precipitation amount of 91 mm (3.6 in) over 10 days. Additionally, March tends to have higher humidity at 73%, compared to September's 64%. For a detailed look at the weather conditions in March, you can visit Vrbnik weather in March.

When comparing September and April weather, it’s clear that the two months offer quite different climates. September sees a more temperate range with minimum temperatures around 8°C (46°F), average highs of 29°C (85°F), and a total precipitation of 172 mm (6.8 in) over 11 days, resulting in a humidity level of 64%. In contrast, April is cooler, with minimum temperatures dropping to -2°C (29°F) and an average high of only 23°C (74°F). April also experiences less precipitation, totaling 86 mm (3.4 in) over 9 days, but comes with a slightly higher humidity level at 73%. For a detailed look at April's weather specifics, check out Vrbnik weather in April.

When comparing the weather in September and May, several differences become apparent. September typically enjoys warmer temperatures, with averages reaching 19°C (66°F) during the day and a maximum of 29°C (85°F), while May presents cooler conditions with averages around 16°C (61°F) and a maximum of 26°C (78°F). Although both months experience significant rainfall, September has a higher total precipitation of 172 mm (6.8 in) over roughly 11 days compared to May's 136 mm (5.3 in) over 17 days. Additionally, humidity is slightly lower in September at 64%, in contrast to May's higher humidity level of 70%. For those interested in May's climate specifics, further details can be found at Vrbnik weather in May.

In comparing the weather of September and June, September tends to have cooler temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), while June is warmer, featuring a minimum of 11°C (52°F) and an average of 21°C (71°F). June also experiences more sunshine, as temperatures can peak at 32°C (90°F), whereas September's maximum reaches 29°C (85°F). Precipitation levels highlight a significant difference as well; September receives 172 mm (6.8 in) over 11 days, while June has a much lighter total of 49 mm (1.9 in) over just 7 days. Additionally, humidity is slightly higher in June at 69% compared to September's 64%. For more detailed insights into June weather, you can check this link: Vrbnik weather in June.

When comparing the weather in September to that of July, notable differences emerge. September experiences a broader temperature range, with minimums dipping to 8°C (46°F) and maximums reaching up to 29°C (85°F), resulting in an average temperature of 19°C (66°F). This cooler month also sees a significant increase in precipitation, totaling 172 mm (6.8 in) over 11 days, compared to July's more moderate 57 mm (2.2 in) across just 7 days. In July, temperatures remain more consistently warm, with a minimum of 15°C (59°F) and a maximum of 31°C (88°F), leading to an average of 23°C (74°F) and only slightly lower humidity at 63%. For a deeper look at July's weather, you can check out Vrbnik weather in July.

Comparing the weather in September to that of August reveals a distinct transition in climate. September experiences cooler temperatures with a minimum of 8°C (46°F) and an average of 19°C (66°F), while August boasts warmer temperatures, averaging around 24°C (75°F) with a peak of 33°C (92°F). Precipitation also sees a marked increase in September, with 172 mm (6.8 in) spread over 11 days, compared to August's relatively dry conditions with only 59 mm (2.3 in) over 6 days. Additionally, the humidity rises in September to 64%, compared to a more comfortable 51% in August. For more details on weather specifics, you can check Vrbnik weather in August.

September and October present a notable transition in weather patterns. In September, temperatures range from a mild 8°C (46°F) at night to a warm average of 19°C (66°F) during the day, peaking at 29°C (85°F). The month also experiences 172 mm (6.8 in) of precipitation over 11 days, with a humidity level of 64%. In contrast, October brings cooler temperatures, with a minimum of 5°C (42°F) and an average of 14°C (58°F), peaking at 23°C (73°F). Precipitation decreases to 124 mm (4.9 in), but humidity rises to 83%, suggesting a shift towards a wetter and cooler climate as autumn settles in. For more details, check Vrbnik weather in October.

September and November present notably different weather patterns. In September, temperatures range from a mild 8°C (46°F) at night to a warm 29°C (85°F) during the day, making it an ideal month for outdoor activities. The average temperature is a comfortable 19°C (66°F), but the month experiences 172 mm (6.8 in) of precipitation over 11 days, contributing to a humidity level of 64%. In contrast, November sees a significant drop in temperatures, with lows averaging 1°C (34°F) and highs reaching only 19°C (66°F), bringing a cooler average of 10°C (51°F). Rainfall remains comparable at 171 mm (6.7 in), but it occurs over more days, with precipitation recorded on 13 days and humidity rising to 89%. For more detailed information, you can check Vrbnik weather in November.

September and December present starkly contrasting weather patterns. In September, temperatures range from a mild 8°C (46°F) at night up to a warm 29°C (85°F) during the day, with an average of 19°C (66°F). The month experiences 172 mm (6.8 in) of precipitation over 11 days and a humidity level of 64%. In contrast, December sees much colder temperatures, with a minimum of -3°C (26°F) and a maximum of 16°C (61°F), averaging only 7°C (44°F). The precipitation increases to 205 mm (8.1 in) over 16 days, alongside a higher humidity level of 88%. For a closer look at weather specifics, check out Vrbnik weather in December.

Compare Vrbnik's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Vrbnik

As September unfolds in Vrbnik, the weather showcases a delightful transition from the summer heat, with maximum temperatures reaching a comfortable 29°C (85°F) and an inviting average of 19°C (66°F). While the warmth lingers, the crispness of autumn begins to creep in, evidenced by cooler nights that dip to around 8°C (46°F). This month also sees an increase in precipitation, with rain gracing the area on about 11 days, contributing to a 64% humidity, making the air feel fresh and revitalizing. Compared to the scorching summer months, September offers a more temperate climate, inviting both relaxation and exploration. For those curious about the broader trends, explore more about the region's unique patterns in the Vrbnik Climate.