September Weather in Travnik, Bosnia and Herzegovina

Last updated: August 21, 2025

In September, Travnik, Bosnia and Herzegovina experiences a dynamic climate characterized by a maximum temperature reaching 30°C (87°F), while the average temperature hovers around 15°C (59°F). As the month progresses, temperatures can dip to a minimum of -1°C (31°F), highlighting the transition into autumn. Rainfall is common during this time, with an average precipitation amount of 73 mm (2.9 in) spread across approximately 13 days, contributing to a humidity level of 61%. Travelers can expect a blend of warm days and cooler evenings, making September a unique time to explore the rich culture and stunning landscapes of this picturesque town.

September Temperature in Travnik

As September arrives in Travnik, Bosnia and Herzegovina, the temperatures begin to shift dramatically, offering a refreshing conclusion to the summer months. The average temperature settles at a comfortable 15°C (59°F), with daily highs peaking at around 30°C (87°F)—a perfect mix for those seeking warm but not sweltering conditions. The nights cool down significantly, with lows dropping to -1°C (31°F), hinting at the approaching autumn. This transitional month mirrors the broader cooling trend seen from the summer's peak in August, where temperatures reach as high as 35°C (96°F). Overall, September showcases a lovely balance of lingering warmth during the day and crispness at night, making it an ideal time for outdoor adventures in the picturesque landscape of Travnik.

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

The chart illustrates September temperature patterns in Travnik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Travnik, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293639485563666759504334
Data source: Temperature data for Travnik 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 Travnik

In September, Travnik experiences a transition from the lush summer months to the crispness of autumn, reflected in its precipitation patterns. With an average rainfall of 73 mm (2.9 in) over about 13 days, September marks a noticeable decrease compared to the wetter summer months, such as May and July, which see significantly higher totals. This month serves as a bridge, leading into the rainier autumn season, as precipitation begins to pick up again in October with 101 mm (4.0 in). The steady rhythm of rainfall during September contributes to the vibrant colors of the surrounding landscapes, making it a picturesque time to experience Travnik's natural beauty.

September Precipitation Trends in Travnik

The chart displays monthly precipitation patterns in Travnik, 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 Travnik, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8095102113154137141907310194141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Travnik

In September, Travnik, Bosnia and Herzegovina, experiences a noticeable shift in humidity, with levels averaging 61%. This marks a subtle increase from the drier months of summer, where humidity dipped to as low as 52% in August. As the region transitions into autumn, the air becomes more moisture-laden, setting the stage for the wetter months ahead. Interestingly, this rise in humidity comes just before a significant surge in October, when the levels leap back to 81%. Overall, September serves as a bridge between the warm, dry summer and the cooler, more humid autumn, showcasing the region's dynamic seasonal shifts.

September Average Humidity in Travnik

This chart illustrates the average monthly humidity levels in Travnik, 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 Travnik is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%84%77%70%70%68%63%52%61%81%86%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Travnik

As September rolls into Travnik, Bosnia and Herzegovina, the UV Index reflects a high level of solar intensity at 7, which requires a burn time of 25 minutes before any skin protection is needed. This drop from the extreme highs of summer, where UV levels peaked at 10 in July and June, indicates a gradual transition into the cooler months. While early fall still demands caution, with exposure categorized as high, it offers a respite from the intense heat of previous months, allowing residents and visitors to enjoy outdoor activities. For more details on UV levels throughout the year, check the Travnik UV Index.

Maximum UV Index Levels in Travnik for September

The chart shows the monthly maximum UV Index (UVI) for Travnik 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 Travnik typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24678101097532
Data source: Travnik 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 Travnik

In September, Travnik basks in a delightful 331 hours of sunshine, marking a gentle transition from the sun-drenched days of summer. Following July's peak of 422 hours, the daylight hours begin to taper off, yet the warmth and light linger pleasantly, inviting outdoor exploration. As autumn approaches, the golden hues of fall blend with the lingering summer vibes, creating an enchanting atmosphere in this historic town. This month's sunshine hours are reminiscent of the vibrant May and June, signaling a stunning backdrop for enjoying Travnik's natural beauty and rich cultural heritage as it prepares for the chillier months ahead.

Monthly Sunshine Duration in Travnik: September Highlighted

The September sunshine duration represents the total number of hours Travnik 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.
JanFebMarAprMayJunJulAugSepOctNovDec162h221h292h331h367h387h422h381h331h280h206h192h
Data source: Travnik September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Travnik During September

As summer transitions into autumn, September in Travnik enjoys a pleasant likelihood of sunny weather, with a 52% chance of sunshine. This marks a slight decline from the peak of summer, yet it remains relatively high compared to the earlier months of the year like January and April. The trend of gradually increasing sunshine from February’s 44% to August’s 55% suggests that the region often basks in warmth and light during the late summer months. As the days begin to shorten, September still offers a favorable opportunity to enjoy the last remnants of summer before the cooler fall months set in.

Percentage of Sunny Days in September in Travnik

The chart illustrates the percentage of sunny days in Travnik 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 Travnik experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%44%41%37%37%53%50%55%52%41%23%23%
Data source: Travnik September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Travnik in September

As summer transitions to autumn in September in Travnik, Bosnia and Herzegovina, the daylight begins to wane, showcasing a subtle yet significant shift in the daily light hours. With approximately 12 hours of daylight, this month marks a gentle decline from the vibrant 15 hours experienced in the peak of summer. The gradual decrease in daylight underscores the changing seasons, as nature prepares for the shorter days of fall and winter ahead. Throughout the year, we see a dynamic rhythm, from 9 hours in January to a lush peak of 15 hours in July, ultimately tapering off again. September's balance of light serves as a reminder of the cyclical beauty of time in this picturesque region.

Average Daylight Hours in Travnik for September

The chart illustrates the variation in daylight duration in Travnik throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 16m10h 27m11h 56m13h 28m14h 46m15h 26m15h 5m13h 56m12h 28m10h 56m9h 36m8h 54m
Data source: Travnik daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Travnik

As September winds sweep through Travnik, Bosnia and Herzegovina, they bring a gentle respite with an average speed of 1.5 m/s (3 mph), marking one of the quieter months in the region. This noticeable decline in wind speed, following the more moderate breezes seen from the early spring through summer months, reflects a gradual shift towards the calmness of autumn. The peak summer winds, hovering around 1.7 m/s (4 mph) in August, give way to a serene atmosphere that invites leisurely strolls through the city's enchanting landscapes. With the wind beginning to pick up slightly again in October, nature subtly prepares for the more pronounced gusts of late fall and winter, showcasing the dynamic yet soothing character of Travnik's wind patterns throughout the year.

Average September Wind Speed in Travnik

The chart displays monthly wind speed patterns in Travnik, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.12.01.92.11.61.61.71.5 m/s1.61.72.0
Data source: Travnik September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Travnik Compares to Other Months

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

In comparing the weather between September and January, there are stark contrasts in temperature and overall conditions. September typically experiences a broader temperature range, with a minimum of -1°C (31°F) and a maximum reaching as high as 30°C (87°F), resulting in an average of 15°C (59°F). The month sees moderate rainfall, totaling 73 mm (2.9 in) over roughly 13 days, with a humidity level of 61%.

In contrast, January brings much colder weather, featuring chilling minimum temperatures of -28°C (-17°F) and an average of -2°C (29°F), peaking at only 14°C (57°F). Although January's precipitation slightly surpasses that of September at 80 mm (3.2 in) over 12 days, the high humidity of 89% adds to the biting cold. For a more detailed overview of January conditions, you can visit Travnik weather in January.

When comparing September and February weather, notable differences emerge in temperature and humidity. September boasts milder temperatures, ranging from a minimum of -1°C (31°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F). In contrast, February is much colder, featuring a minimum temperature of -14°C (7°F) and a maximum of 19°C (67°F), with an average temperature of just 2°C (36°F). Additionally, February experiences higher humidity at 84%, compared to September's 61%. Both months see a similar number of rainy days—September with 13 days of precipitation totaling 73 mm (2.9 in) and February with 12 days producing 95 mm (3.7 in). For more detailed information about February weather, you can visit Travnik weather in February.

September and March present distinct weather characteristics that reflect the transition between seasons. In September, temperatures range from a minimum of -1°C (31°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F) and a relatively moderate humidity level of 61%. Precipitation is noted on 13 days, totaling 73 mm (2.9 in). In contrast, March experiences colder temperatures, with a minimum of -16°C (3°F) and a maximum of 22°C (71°F), leading to a lower average of 4°C (40°F). This month also has a higher precipitation level of 102 mm (4.0 in) over 14 days and increased humidity at 77%. The sharper chill of March, coupled with its higher moisture, makes it notably different from the warmer and drier September. For more detailed information on March weather in Travnik, you can visit Travnik weather in March.

When comparing the weather in September and April, September tends to be milder with average temperatures around 15°C (59°F), while April experiences cooler averages at 9°C (48°F). The maximum temperatures in September can reach a warm 30°C (87°F), contrasting with April's maximum of 25°C (77°F). Additionally, April sees more precipitation, totaling 113 mm (4.4 in) over 13 days, compared to September's 73 mm (2.9 in) across the same number of days. The humidity is slightly higher in April at 70%, compared to 61% in September. For more details on April weather, you can visit Travnik weather in April.

September and May offer distinct weather characteristics. In September, temperatures can range from a brisk -1°C (31°F) at night to a warm 30°C (87°F) during the day, with an average of 15°C (59°F). The month sees 73 mm (2.9 in) of precipitation over about 13 days, accompanied by a humidity level of 61%. In contrast, May features a similar nighttime low of -1°C (30°F), but average daytime temperatures are slightly cooler at 13°C (56°F) and peak at 27°C (81°F). This month experiences more rainfall, totaling 154 mm (6.1 in) spread across 20 days, with humidity levels slightly higher at 70%. For a closer look at the specifics of May weather, you can check out Travnik weather in May.

September and June offer distinct weather characteristics, reflecting the transition from summer to autumn. In June, temperatures range from a minimum of 4°C (40°F) to a maximum of 33°C (92°F), with an average of 17°C (63°F), creating a warm and inviting atmosphere. Conversely, September presents a broader temperature spectrum, with minimums dipping to -1°C (31°F) and maximums reaching 30°C (87°F), while the average temperature sits at 15°C (59°F).

Precipitation is also notably different: June experiences 137 mm (5.4 in) over 18 days, compared to September's 73 mm (2.9 in) spread across 13 days. Humidity levels are higher in June at 68% compared to September's 61%, adding to the overall feeling of warmth. For a detailed look at the weather in June, you can check Travnik weather in June.

In comparing the weather patterns of September and July, there are notable differences in temperature and precipitation. September experiences a wider temperature range, with a minimum of -1°C (31°F) and a maximum of 30°C (87°F), averaging 15°C (59°F). In contrast, July's weather is generally warmer, with a minimum of 9°C (48°F), a maximum of 33°C (92°F), and an average of 19°C (66°F). Precipitation also varies significantly; September sees 73 mm (2.9 in) over 13 days, while July has a much higher total of 141 mm (5.5 in) across 16 days. Humidity levels are similar, hovering around 61% in September and 63% in July. For more details on the weather during July, you can visit Travnik weather in July.

In comparing the weather between August and September, it’s clear that September experiences cooler temperatures, with a minimum of -1°C and an average of 15°C, compared to August's milder range, where the minimum is 5°C and the average is 20°C. Additionally, September's maximum temperature reaches 30°C, while August can soar to a hotter 35°C. Precipitation levels are somewhat lower in September at 73 mm over 13 days, compared to August's 90 mm, also over the same number of days. Humidity is slightly higher in September at 61%, versus August's 52%. For more detailed information, you can check Travnik weather in August.

September and October present a notable shift in weather patterns. In September, temperatures range from a minimum of -1°C (31°F) to a maximum of 30°C (87°F), with an average of 15°C (59°F). The month sees a total precipitation of 73 mm (2.9 in) over 13 days, while the humidity hovers around 61%. In contrast, October experiences cooler temperatures, with a minimum of -2°C (29°F), an average of 10°C (51°F), and a maximum of 25°C (77°F). Additionally, precipitation increases to 101 mm (4.0 in) over just 10 days, and humidity rises significantly to 81%. These changes highlight the transition from the warmth of early autumn to the chill of late fall. For more specific details, check out Travnik weather in October.

September and November present quite different weather patterns. In September, temperatures range from a minimum of -1°C (31°F) to a pleasant average of 15°C (59°F), reaching a maximum of 30°C (87°F). The month experiences moderate precipitation of 73 mm (2.9 in) over 13 days, with humidity levels around 61%. In stark contrast, November brings cooler temperatures, with a minimum of -10°C (14°F) and an average of only 6°C (43°F), peaking at 20°C (68°F). The precipitation increases slightly to 94 mm (3.7 in) over 11 days, and the humidity rises significantly to 86%. For more detailed insights on the November weather, check out Travnik weather in November.

September and December exhibit stark contrasts in weather conditions. In September, temperatures can range from a chilly -1°C (31°F) at night to a warm 30°C (87°F) during the day, resulting in a pleasant average of 15°C (59°F). The month experiences moderate precipitation of 73 mm (2.9 in) over about 13 days, accompanied by a humidity level of 61%. In contrast, December ushers in much colder weather, with temperatures dipping as low as -12°C (11°F) overnight and peaking at just 14°C (58°F), averaging around 1°C (35°F). This month is also wetter, with 141 mm (5.6 in) of rain spread over approximately 17 days, and a heightened humidity of 89%. For a detailed look at the December climate, check out Travnik weather in December.

Compare Travnik's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Travnik

September in Travnik offers a delightful transition from the warmth of summer to the crispness of autumn. With temperatures peaking at a pleasant 30°C, the month is still warm, yet the average cools to a refreshing 15°C, making it a perfect time for outdoor adventures. Unlike the hotter summer months, September experiences a rise in precipitation with around 13 rainy days, contributing to the lush greenery of the landscape. Humidity levels around 61% provide a comfortable atmosphere, making it distinctively refreshing as nature prepares for the cooler months ahead. For a deeper dive into the climatic nuances of this beautiful region, visit Travnik Climate.