September Weather in Bol, Croatia

Last updated: March 17, 2025

Experience the charming weather of Bol, Croatia in September, where maximum temperatures reach a delightful 29°C (84°F), offering perfect conditions for outdoor exploration. With an average temperature of 22°C (72°F), this coastal destination provides a comfortable climate ideal for both relaxation and adventure. Visitors can expect a cooler minimum temperature of 13°C (56°F) during the evenings. September also sees a moderate precipitation amount of 96 mm (3.8 in) over 6 days, keeping the landscape lush. The humidity levels average around 69%, contributing to the region's vibrant atmosphere. Whether you’re sunbathing on pristine beaches or strolling through charming streets, September in Bol promises a delightful blend of warmth and refreshing coastal breezes.

September Temperature in Bol

In September, Bol, Croatia, offers a delightful transition from the summer heat to the cooler autumn days. With minimum temperatures averaging around 13°C (56°F) and a comfortable average of 22°C (72°F), visitors can still enjoy pleasant weather and outdoor activities. The maximum temperatures lingering at 29°C (84°F) mean the sun still shines brightly, perfect for swimming in the Adriatic Sea or exploring the town’s charming streets. As the month progresses, temperatures gradually dip, signaling the start of fall, while still delivering warm days and crisp evenings—a perfect backdrop for enjoying the stunning coastal landscapes.

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

The chart illustrates September temperature patterns in Bol, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec475051576472767871645851
Data source: Temperature data for Bol 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 Bol

September in Bol, Croatia, marks a notable transition as summer begins to yield to autumn. With 96 mm (3.8 in) of precipitation over 6 days, the month reflects a slight uptick in rainfall compared to the drier summer months of July and August. This increase not only contributes to the lushness of the landscape but also prepares the region for the more substantial rainfall that arrives in October and November. As the skies darken and temperatures cool, September’s precipitation serves as a gentle reminder of the seasonal shifts, making it a pivotal month for both nature and the local community.

September Precipitation Trends in Bol

The chart displays monthly precipitation patterns in Bol, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1049986726425132196109249229
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bol

In September, humidity in Bol, Croatia, settles at a comfortable 69%, marking a slight increase from the summer months, which feature their lowest levels, with August dipping to 65%. This gradual rise foreshadows the return of the wetter autumn months, as the humidity notably escalates to 76% by October. September serves as a transitional month, where the lingering warmth of summer meets the onset of fall, providing visitors with a pleasant climate to enjoy the scenery while feeling the subtle shift in the air. This trend highlights Bol's unique appeal, as it gracefully balances seasonal changes without the extremes of winter's higher humidity levels, fluctuating between 81% in November and December, showcasing the region's diverse atmospheric character throughout the year.

September Average Humidity in Bol

This chart illustrates the average monthly humidity levels in Bol, 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.
JanFebMarAprMayJunJulAugSepOctNovDec83%76%73%75%78%75%71%65%69%76%81%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bol

As summer fades, September in Bol, Croatia, greets visitors with a UV Index of 7, indicating a high exposure category. This is a slight decline from the intense levels experienced in July and August, where the UV Index peaked at 10, but still calls for caution with a burn time of just 25 minutes. As the sun begins its seasonal retreat, it's essential to stay protected as you enjoy the delightful early autumn days. With the UV Index gradually decreasing into October, finding that balance between sun-soaked adventures and skin safety becomes crucial. For more information on UV levels throughout the year, check out the detailed Bol UV Index.

Maximum UV Index Levels in Bol for September

The chart shows the monthly maximum UV Index (UVI) for Bol 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.
JanFebMarAprMayJunJulAugSepOctNovDec24678101097532
Data source: Bol 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 Bol

As summer gently transitions into autumn, September in Bol, Croatia offers a delightful balance of warmth and moderate sunshine, with 345 hours of glorious sunlight gracing the skies. Following the peak of summer, where July dazzles with an impressive 435 hours, September signifies a graceful decline, yet remains brighter than the chill of the upcoming months. This shift toward autumn does not mean the sun disappears; rather, it signals a time of beautiful sunsets and milder temperatures, making it the perfect month for outdoor adventures. As the days shorten and the air cools, visitors can still enjoy the vibrant coastal landscape, turning September into a magical gem within the year’s sunshine record.

Monthly Sunshine Duration in Bol: September Highlighted

The September sunshine duration represents the total number of hours Bol 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.
JanFebMarAprMayJunJulAugSepOctNovDec191h251h326h357h396h419h435h403h345h314h239h230h
Data source: Bol September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bol During September

As summer ebbs, September in Bol, Croatia offers a delightful blend of warmth and sunshine, with a 63% chance of sunny weather. This month’s likelihood of clear skies reflects a notable trend as it follows the peak summer months—July and August, which boast probabilities of 73% and 76%, respectively. While September sees a slight dip in sunshine compared to the summer, it still enjoys a respectable forecast, making it an ideal time for visitors to relish the lingering sun before the autumn sets in. With pleasant conditions continuing into October at 55%, those looking to extend their outdoor adventures will find Bol’s early fall charm hard to resist.

Percentage of Sunny Days in September in Bol

The chart illustrates the percentage of sunny days in Bol 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 Bol experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%54%61%51%55%70%73%76%63%55%29%44%
Data source: Bol September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bol in September

As summer transitions into autumn in Bol, Croatia, September greets visitors with an average daylight duration of 12 hours. This month marks a gentle decline from the sun-drenched days of June and July, which boast up to 15 hours of sunlight. Despite the shorter days, September still offers significantly more daylight than the winter months, providing ample time to explore the stunning landscapes and vibrant local culture. With each passing month, the daylight gradually wanes—falling to 10 hours in October—yet September holds onto a warm glow, inviting travelers to relish the last moments of summer before the days grow cooler and shorter.

Average Daylight Hours in Bol for September

The chart illustrates the variation in daylight duration in Bol throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 22m10h 30m11h 57m13h 25m14h 41m15h 19m14h 59m13h 52m12h 27m10h 58m9h 41m9h
Data source: Bol daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bol

As summer gives way to autumn, September in Bol, Croatia, experiences a gentle shift in its winds. With an average wind speed of 2.9 m/s (6 mph), September marks the year's calmest month for breezes, following the more robust winds of summer. This decrease highlights a trend of diminishing wind activity from July and August, where speeds hovered around 3.4 m/s. As autumn approaches, the winds pick up again in October, suggesting a dynamic yet mild transition. Visitors during September can enjoy tranquil days at the beach, where the soft winds create a serene atmosphere, perfect for relaxation and reflection on the changing seasons.

Average September Wind Speed in Bol

The chart displays monthly wind speed patterns in Bol, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.04.33.84.24.23.03.43.42.9 m/s4.04.74.6
Data source: Bol September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bol Compares to Other Months

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

In September, the weather is generally warmer, with temperatures ranging from a mild 13°C (56°F) at night to a pleasant 29°C (84°F) during the day, accompanied by an average precipitation of 96 mm (3.8 in) over about 6 days. The humidity sits at 69%, offering a comfortable atmosphere. In contrast, January brings much colder temperatures, with a minimum of -6°C (22°F) and a maximum of 15°C (59°F), along with increased precipitation of 104 mm (4.1 in) over 10 days, and higher humidity at 83%. This stark contrast highlights the transition from the warm late summer to the chill of mid-winter. For more details on January weather in the region, you can check Bol weather in January.

In comparing the weather between September and February, there's a stark contrast in temperatures and conditions. September typically boasts a mild climate with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), averaging 22°C (72°F). With about 96 mm (3.8 in) of precipitation over six days, humidity levels sit at a comfortable 69%. In contrast, February brings much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 15°C (60°F), averaging only 10°C (50°F). Precipitation slightly increases to 99 mm (3.9 in) over ten days and humidity rises to 76%. For more detailed weather information specific to February, you can check out Bol weather in February.

In September, the weather is noticeably warmer, with average temperatures reaching 22°C (72°F) and maximums peaking at 29°C (84°F). The humidity levels sit at 69%, and the month experiences around 96 mm (3.8 in) of precipitation over approximately 6 days. In contrast, March presents a cooler climate, with average temperatures around 11°C (52°F) and maximums only reaching 17°C (64°F). The precipitation in March is slightly lower at 86 mm (3.4 in) but occurs over more days, totaling about 9 days, leading to a humidity level of 73%. For further details on weather in March, you can check Bol weather in March.

In comparing the weather of September and April, September generally showcases warmer temperatures, with a minimum of 13°C (56°F) and a maximum of 29°C (84°F), resulting in an average of 22°C (72°F). In contrast, April experiences cooler conditions, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 22°C (72°F) and an average of 14°C (57°F). Additionally, September tends to be wetter, receiving 96 mm (3.8 in) of precipitation over 6 days, while April sees less rainfall at 72 mm (2.8 in) across 8 days. The humidity in April is slightly higher at 75% compared to 69% in September. For more detailed insights on April weather, you can check Bol weather in April.

In comparing the weather between September and May, September generally offers warmer temperatures with a minimum of 13°C (56°F) and an average of 22°C (72°F), peaking at a maximum of 29°C (84°F). In contrast, May features slightly cooler conditions, with temperatures ranging from a minimum of 10°C (50°F) to an average of 18°C (64°F) and a maximum of 25°C (76°F). Precipitation is more pronounced in September, with 96 mm (3.8 in) falling over about 6 days, compared to May's 64 mm (2.5 in) spread across 9 days. Additionally, September's humidity stands at 69%, while May experiences a higher humidity level of 78%. For more insights into May's weather conditions, visit Bol weather in May.

September and June exhibit similar average temperatures, both hovering around 22°C (72°F), but their minimum and maximum temperatures differ slightly. In September, nights are cooler, with a minimum of 13°C (56°F), while June starts at a warmer 15°C (60°F). Although both months can reach up to 29°C (84°F), September experiences more precipitation, totaling 96 mm (3.8 in) over about six days, compared to June's drier 25 mm (1.0 in) over just three days. Humidity levels are also slightly higher in June at 75%, compared to September's 69%. For more detailed weather information, check out Bol weather in June.

When comparing the weather in September and July, we can see some notable differences. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), with an average of 22°C (72°F). This month also tends to have more precipitation, receiving approximately 96 mm (3.8 in) over about 6 days, accompanied by a humidity level of 69%. In contrast, July is warmer, with temperatures varying from 18°C (65°F) to 29°C (84°F), and an average of 24°C (76°F). July experiences significantly less rainfall, with only 13 mm (0.5 in) over 2 days and slightly higher humidity at 71%. For more details on July weather, you can check out Bol weather in July.

In comparing the weather between August and September, we can see that September is notably cooler, with average temperatures dropping from 26°C (78°F) in August to 22°C (72°F). While August boasts higher maximum temperatures of 31°C (87°F), September's maximums reach only 29°C (84°F). Additionally, September experiences significantly more precipitation, with 96 mm (3.8 in) falling over 6 days, compared to just 21 mm (0.8 in) over 2 days in August. Moreover, humidity levels in September are slightly higher at 69%, compared to 65% in August. For a detailed look at August weather, visit Bol weather in August.

In September, the weather typically features a mild temperature range, with minimums around 13°C (56°F) and maximums reaching up to 29°C (84°F), averaging at 22°C (72°F). Humidity is relatively moderate at 69%, and rainfall occurs on about 6 days, totaling 96 mm (3.8 in).

Conversely, October sees a slight drop in temperatures, with minimums around 11°C (52°F) and maximums peaking at 24°C (75°F), resulting in an average of 18°C (64°F). The month also experiences increased precipitation, totaling 109 mm (4.3 in) over approximately 8 days, and humidity rises to 76%. For more detailed information on October weather, visit Bol weather in October.

In September, the weather is typically warmer, with average temperatures around 22°C (72°F) and maximums reaching up to 29°C (84°F). In contrast, November sees a significant drop in temperature, averaging 15°C (59°F) with maximums of only 21°C (70°F). Additionally, September experiences less precipitation, totaling 96 mm (3.8 in) over about 6 days, while November is much wetter, with 249 mm (9.8 in) of rainfall spread over 15 days. The humidity is also higher in November at 81%, compared to 69% in September. For more detailed weather information, you can check out Bol weather in November.

September offers a mild and pleasant climate, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F). This month sees relatively low precipitation of 96 mm (3.8 in) spread over about 6 days, along with a comfortable humidity level of 69%. In contrast, December brings a significant drop in temperatures, with averages between 3°C (37°F) and 17°C (62°F), and an overall average of just 11°C (51°F). Additionally, it experiences much higher precipitation at 229 mm (9.0 in), occurring over 15 days, and increased humidity at 81%. For a detailed look at December weather in Bol, you can visit Bol weather in December.

Compare Bol's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bol

As summer transitions into autumn, September in Bol offers a delightful balance of warmth and refreshing breezes. With milder temperatures compared to the blistering heat of July and August, this month provides an ideal climate for outdoor adventures. Although the rainfall increases slightly, with around six days of precipitation, it enhances the lush beauty of the landscape, contrasting beautifully with the remaining sunny days. The average humidity of 69% adds a subtle touch to the air, making evenings particularly pleasant for enjoying leisurely strolls along the beach. Discover more about the seasonal changes and what to expect in this stunning location by visiting Bol Climate.