September Weather in Ilidza, Bosnia and Herzegovina

Last updated: August 21, 2025

September in Ilidza, Bosnia and Herzegovina brings a delightful transition into autumn, characterized by a maximum temperature of 29°C (85°F) and an average of 15°C (59°F). As summer gives way to cooler days, the region experiences a minimum temperature that can drop to 0°C (32°F). This month sees an average precipitation of 62 mm (2.4 in) over approximately 11 days, creating a refreshing atmosphere with a humidity level of around 65%. As nature transitions, visitors can enjoy the beauty of the changing foliage against a backdrop of mild weather, making it an ideal time for exploration and outdoor activities.

September Temperature in Ilidza

As September unfolds in Ilidza, Bosnia and Herzegovina, the region experiences a delightful transition marked by a notable drop in temperature from the summer's peak. With early morning lows around 0°C (32°F), the city begins to feel the crispness of autumn. The average temperature rests at a comfortable 15°C (59°F), ideal for outdoor activities, while daytime highs can still reach a pleasant 29°C (85°F), allowing for a few lingering warm days. This month serves as a gentle reminder of the changing seasons, juxtaposing the fading warmth of summer with the coolness to come in October, where temperatures further decline. Overall, September offers a perfect blend of summer's warmth and autumn's embrace, making it a charming time to explore Ilidza.

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

The chart illustrates September temperature patterns in Ilidza, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilidza, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec283538465462656758504333
Data source: Temperature data for Ilidza 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 Ilidza

September in Ilidza, Bosnia and Herzegovina, marks the transition from summer to autumn, reflected in its precipitation patterns. With 62 mm (2.4 in) of rain over 11 days, September sees a noticeable decline in rainfall compared to the wetter months preceding it, particularly May and June, which often exceed 100 mm. This decrease indicates a shift towards drier conditions as the year progresses. The reduced precipitation not only highlights the gradual cooling of the season but also sets the stage for a more stable weather pattern as autumn takes hold.

September Precipitation Trends in Ilidza

The chart displays monthly precipitation patterns in Ilidza, 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. In Ilidza, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec821051049912611497736285109156
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ilidza

As summer transitions to autumn in Ilidza, September experiences a noticeable uptick in humidity, rising to 65% after the low of 53% in August. This shift marks a turning point in the humidity trend throughout the year. While early months like January and February are characterized by high humidity levels of 88% and 82% respectively, the gradual decline through the summer months allows for a drier atmosphere, peaking in July at just 59%. However, September's humidity serves as a reminder of the approaching fall, hinting at the return of moisture-laden air that will dominate the coming months, as October and November see a significant rise back to 78% and 85%, respectively. This rhythm highlights the natural ebb and flow of humidity in Ilidza, painting a vivid picture of the region's shifting climate.

September Average Humidity in Ilidza

This chart illustrates the average monthly humidity levels in Ilidza, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Ilidza is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%79%75%74%66%59%53%65%78%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ilidza

In September, Ilidza experiences a notable decline in UV Index levels as summer gives way to autumn, with a UV Index of 7 categorized as high. This marks a transition from the intense summer sun, which peaked at 10 in both June and July. As a result, residents and visitors can enjoy more time outdoors with a burn time of 25 minutes, allowing for leisurely activities while still necessitating some sun protection. This trend reflects the area's generally strong UV exposure in the warmer months, reminding everyone to remain vigilant about skin safety even as the temperatures cool. For more detailed information on UV levels throughout the year, visit Ilidza UV Index.

Maximum UV Index Levels in Ilidza for September

The chart shows the monthly maximum UV Index (UVI) for Ilidza 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. In September, the maximum UV index in Ilidza typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34789101097532
Data source: Ilidza 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 Ilidza

In September, Ilidža, Bosnia and Herzegovina, enjoys a delightful transition from summer to autumn, boasting 340 hours of sunshine. This vibrant month marks a notable dip from the peak of 430 hours seen in July but remains abundant compared to the winter months. As the days gradually shorten, the warm rays still provide a perfect backdrop for outdoor adventures and leisurely strolls. With sunshine hours decreasing from the sun-drenched highs of summer, September serves as a gentle reminder of the changing seasons, fostering an appreciation for the beauty of nature's cycles.

Monthly Sunshine Duration in Ilidza: September Highlighted

The September sunshine duration represents the total number of hours Ilidza 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.
JanFebMarAprMayJunJulAugSepOctNovDec177h229h304h339h384h402h430h398h340h302h224h204h
Data source: Ilidza September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ilidza During September

In September, Ilidza experiences a 51% chance of sunny weather, marking a slight dip from the peak sunny months of July and August, which boast 55% and 61% respectively. This makes September an attractive time for visitors seeking a balance between warm temperatures and manageable crowds, as summer recedes but the pleasant weather remains. Following this, the likelihood of sunshine tends to decline, with October and November showing reduced chances at 43% and 20%. Overall, September stands out as a favorable month to enjoy the last rays of summer before the chill of autumn sets in.

Percentage of Sunny Days in September in Ilidza

The chart illustrates the percentage of sunny days in Ilidza 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 Ilidza experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%41%37%38%37%55%55%61%51%43%20%20%
Data source: Ilidza September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ilidza in September

As summer fades into autumn, September in Ilidza, Bosnia and Herzegovina, offers a gentle transition in daylight with approximately 12 hours of sunshine per day. This represents a slight decrease from the peak summer months of June and July, which bask in a maximum of 15 hours of daylight. Following the warmth of summer, September still enjoys ample light, making it a favorable month for outdoor activities before the days shorten further in October and descend to just 10 hours. The gradual shift in daylight not only hints at the approaching fall but also underscores the beautiful rhythm of the seasons in this picturesque region.

Average Daylight Hours in Ilidza for September

The chart illustrates the variation in daylight duration in Ilidza throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 19m10h 28m11h 57m13h 27m14h 44m15h 23m15h 2m13h 54m12h 27m10h 57m9h 38m8h 57m
Data source: Ilidza daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ilidza

As September rolls into Ilidza, the gentle breezes begin to mirror the calm before the autumn transition. Average wind speeds dip slightly to 1.6 m/s (4 mph), reflecting a trend of gradual but consistent light winds that have prevailed throughout the summer months. This subtle lull in the air is reminiscent of the pleasant atmosphere that envelops the region, enticing locals and visitors alike to relish outdoor pursuits. With September’s winds trailing off just below the seasonal average, the landscape transitions gracefully, inviting a peaceful ambiance that marks the shift towards cooler days ahead.

Average September Wind Speed in Ilidza

The chart displays monthly wind speed patterns in Ilidza, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.02.01.82.01.61.61.71.6 m/s1.71.71.9
Data source: Ilidza September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ilidza Compares to Other Months

Weather in Ilidza varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ilidza, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present vastly different weather patterns. In September, temperatures range from a cool 0°C (32°F) at night to a warm average of 15°C (59°F) during the day, peaking at a high of 29°C (85°F). The month experiences 62 mm (2.4 in) of precipitation over 11 days, with a relative humidity of 65%. In contrast, January reveals a much colder landscape, with temperatures dipping to a minimum of -26°C (-14°F) and an average of -2°C (28°F), reaching a maximum of only 13°C (56°F). This winter month sees slightly more precipitation at 82 mm (3.2 in) over 13 days, but with a higher humidity level of 88%. For more details on weather conditions, you can check Ilidza weather in January.

The weather in September is generally milder compared to February, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 29°C (85°F), resulting in an average of 15°C (59°F). In contrast, February experiences colder temperatures, with a minimum of -15°C (5°F) and an average of only 2°C (35°F), peaking at 18°C (65°F). Additionally, February sees higher precipitation levels, accumulating 105 mm (4.1 in) over 12 days, while September registers 62 mm (2.4 in) over 11 days. Humidity levels are also noticeably higher in February at 82%, compared to September's 65%. For a more detailed look at February weather in Ilidza, visit Ilidza weather in February.

When comparing the weather in September and March, notable differences emerge in temperature and precipitation. September enjoys milder temperatures, with a minimum of 0°C (32°F) and an average of 15°C (59°F), peaking at 29°C (85°F). In contrast, March is significantly colder, featuring a minimum of -16°C (3°F) and an average of just 4°C (39°F), with a maximum of 20°C (69°F). Additionally, March experiences more rainfall, with 104 mm (4.1 in) over 14 days, compared to September's 62 mm (2.4 in) over 11 days. The humidity is also higher in March at 79%, compared to September's 65%. For more detailed information about March weather, check out Ilidza weather in March.

When comparing the weather in September and April, a few notable differences emerge. September typically enjoys milder temperatures with a minimum of 0°C (32°F), an average of 15°C (59°F), and a maximum of 29°C (85°F). In contrast, April starts cooler with minimum temperatures dropping to -10°C (13°F) and an average of 8°C (47°F), although it can still reach up to 24°C (75°F) on warmer days. Precipitation is slightly higher in April, averaging 99 mm (3.9 in) over 13 days, compared to 62 mm (2.4 in) over 11 days in September. Additionally, April also has higher humidity levels at 75%, compared to September's 65%. For more detailed weather information, visit Ilidza weather in April.

September and May present distinct weather characteristics, highlighting the transition from early autumn to late spring. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 29°C (85°F), averaging around 15°C (59°F). The month sees about 62 mm (2.4 in) of precipitation over 11 days, with humidity levels at 65%. In contrast, May boasts cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 26°C (80°F), averaging 12°C (55°F). It experiences significantly higher precipitation, totaling 126 mm (4.9 in) over 18 days and a humidity level of 74%. For more detailed information on May weather, visit Ilidza weather in May.

September and June present quite different weather patterns. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). This month sees about 62 mm (2.4 in) of precipitation over 11 days, and humidity levels hover around 65%. In contrast, June offers warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 33°C (92°F), and an average of 17°C (62°F). Precipitation is higher in June, totaling 114 mm (4.5 in) spread across 16 days, while humidity slightly increases to 66%. For more details on the weather in June, you can visit Ilidza weather in June.

When comparing the weather in September and July, notable differences emerge. September experiences a wider temperature range, with minimums dropping to 0°C (32°F) and maximums reaching 29°C (85°F). In contrast, July's temperatures are generally warmer, with a minimum of 7°C (45°F) and a peak of 33°C (92°F). Rainfall is more prevalent in July, with 96 mm (3.8 in) over 13 days compared to September's 62 mm (2.4 in) over 11 days. Interestingly, September's humidity levels are slightly higher at 65%, while July maintains a lower humidity of 59%. For more detailed weather information, you can check Ilidza weather in July.

In comparing the weather of September to that of August, one can observe several noteworthy differences. In September, the temperature ranges from a low of 0°C (32°F) to a high of 29°C (85°F), with an average of 15°C (59°F), indicating a significant drop in temperatures from August's minimum of 8°C (46°F) and maximum of 34°C (94°F), which averages at a warmer 19°C (67°F). Additionally, September experiences slightly less precipitation at 62 mm (2.4 in) compared to August's 73 mm (2.9 in), despite having the same number of rainy days at 11. The humidity levels also rise in September, averaging 65% compared to August's lower 53%. For more detailed insights on August weather, you can visit Ilidza weather in August.

In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 29°C (85°F), with an average temperature of 15°C (59°F). The month sees about 62 mm (2.4 in) of precipitation over 11 days, and humidity levels average around 65%. In contrast, October experiences cooler temperatures, with a minimum of -3°C (28°F) and an average of 10°C (50°F), peaking at 24°C (76°F). This month also brings increased precipitation, totaling 85 mm (3.3 in) over just 8 days, along with higher humidity at 78%. For more detailed information on October weather in Ilidza, you can visit Ilidza weather in October.

September typically enjoys milder temperatures with a minimum of 0°C (32°F) and averages around 15°C (59°F), peaking at a maximum of 29°C (85°F). The month sees about 62 mm (2.4 in) of precipitation spread across 11 days, with humidity at a comfortable 65%. In contrast, November experiences a significant drop in temperatures, starting at a minimum of -11°C (12°F), averaging 6°C (43°F), and reaching a maximum of 19°C (67°F). This month also receives more rainfall, totaling 109 mm (4.3 in) over the same number of days, with humidity rising to 85%. For a detailed outlook on the weather in November, you can explore Ilidza weather in November.

September and December present vastly different weather conditions. In September, temperatures range from a chilly 0°C (32°F) at night to a warm 29°C (85°F) during the day, with an average of 15°C (59°F). The month sees moderate rainfall of 62 mm (2.4 in) over approximately 11 days and humidity levels around 65%. In stark contrast, December experiences much colder temperatures, with a minimum of -17°C (2°F), an average of 1°C (34°F), and a maximum of 13°C (55°F). Rainfall increases significantly to 156 mm (6.2 in) over 16 days, along with heightened humidity at 86%. For more details on December weather, you can check out Ilidza weather in December.

Compare Ilidza's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ilidza

As September ushers in the arrival of autumn in Ilidza, temperatures exhibit a gentle transition—from the warmth of summer to the nascent chill of fall. While daytime highs can still reach a pleasant 29°C (85°F), the average drops to a comfortable 15°C (59°F), offering a refreshing respite from the heat of the preceding months. The month brings occasional rain, with about 62 mm (2.4 in) accumulated over roughly 11 days, contributing to an atmosphere that's vibrant and alive. With a humidity level of 65%, the air feels crisp yet inviting, making it an ideal time for outdoor activities. For a more detailed look at the climatic trends throughout the year, visit Ilidza Climate.