Last updated: August 21, 2025
In September, Sarajevo experiences a delightful transition into fall, characterized by daily maximum temperatures reaching up to 29°C (85°F) and an average temperature of 15°C (59°F). As summer's warmth begins to wane, nighttime temperatures may dip to a brisk 0°C (32°F), making layers essential for evening outings. While the city welcomes the changing season with an average humidity level of 65%, residents and visitors can expect 62 mm (2.4 in) of precipitation over about 11 days, adding a refreshing touch to the autumn atmosphere. Embrace Sarajevo's charming September, where cool breezes and the vibrant hues of nature create the perfect backdrop for exploration.
As September graces Sarajevo, temperatures begin to shift, marking a transition towards autumn. The month presents a pleasant average temperature of 15°C (59°F), a noticeable rise from the chillier summer months. With daytime highs reaching up to 29°C (85°F), the warmth still lingers, inviting outdoor exploration of the city's rich history and vibrant culture. Nights, however, offer a refreshing coolness, dropping to a crisp 0°C (32°F). This blend of mild days and brisk evenings creates a perfect opportunity for visitors and locals alike to enjoy the changing scenery while savoring the beauty of Sarajevo in early fall.
As September unfolds in Sarajevo, the city experiences a noticeable decline in precipitation, with an average of 62 mm (2.4 in) falling over 11 days. This marks a shift from the wetter summer months, where rainfall peaked in May at 126 mm (4.9 in). The gradual reduction in precipitation sets the stage for a drier autumn, as October brings a slight increase to 85 mm (3.3 in) but fewer rainy days, dropping to 8. The transition highlights a diminishing trend in rainfall intensity, paving the way for cooler temperatures and clearer skies as Sarajevo shifts into the heart of fall.
In September, Sarajevo experiences a noticeable shift in humidity, sitting at 65%, a welcome reprieve after the drier summer months of July and August. This uptick heralds the gradual transition into autumn, as humidity levels begin to rise again, moving closer to the 78% average seen in October. Overall, the trend shows a clear seasonal pattern: the city boasts its highest humidity during the cold winter months, peaking at 88% in January, while the summer sees the lowest levels, dropping to around 53% in August. September’s moderate humidity serves as a reminder that the crisp air of fall is just around the corner, making it a wonderful time to enjoy the rich beauty of Sarajevo as the seasons change.
As summer fades, September in Sarajevo, Bosnia and Herzegovina, welcomes a slight dip in UV intensity, with the UV Index rated at 7 and categorized as high. This marks a shift from the very high levels experienced in July and August, offering a more moderate exposure with a burn time of 25 minutes. It’s a time when sun-sensitive individuals can enjoy the outdoors while still taking precautions, as the sun remains strong, particularly during midday. As the month progresses into autumn, the UV Index continues to decline into October. For detailed information on UV levels throughout the year, check the Sarajevo UV Index.
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As September rolls in, Sarajevo basks in a delightful 340 hours of sunshine, marking a transition from the summer’s peak brilliance. Following the sun-soaked months of July and June, which boast 430 and 402 hours respectively, this month embodies a gentle decline in daylight, yet it still offers a generous amount of sunlight compared to the autumn months ahead. With abundant sunshine lingering into the fall, September becomes a bridge between the vibrant warmth of summer and the cooler days of October, which sees a notable drop to 302 hours. This trend underscores Sarajevo's unique climate, where the sun shines brightly well into early autumn, inviting both locals and visitors to enjoy the city’s rich culture and stunning landscapes under its golden rays.
September in Sarajevo, Bosnia and Herzegovina, offers a promising chance of sunny weather, with the likelihood standing at 51%. This marks a subtle decline from the sun-kissed summer months of July and August, which boast chances of 55% and 61%, respectively. As the season transitions into autumn, September still retains a beneficial level of sunshine, outperforming the earlier months of the year like March and April. This moderate sun exposure not only enhances the beauty of the city's landscapes but also invites visitors to explore outdoor activities before the colder months set in.
As summer gracefully transitions into autumn, September in Sarajevo witnesses a gentle decline in daylight hours, averaging 12 hours of sunlight. This marks a noticeable shift from the 15 hours enjoyed during the peak of summer in July and June. Following August's mild reduction to 13 hours, September's daylight hints at the approach of fall, as the sun sets earlier and the days grow shorter. This gradual ebb of daylight continues into October and November, with the city preparing for the cozy embrace of winter, where daylight dips to 9 hours by month's end. This month not only signals a change in light but also sets the stage for the rich colors of autumn to unfold across the beautiful landscapes of Bosnia and Herzegovina.
As September rolls into Sarajevo, the average wind speed tends to settle at a gentle 1.6 m/s (4 mph), mirroring the calm before the autumnal transition. This marks a slight dip from the summer months, reflecting the city's shift towards the cooler season. Interestingly, September's winds are indicative of a broader trend throughout the year—save for a few fluctuations, the wind speed remains consistently mild, particularly in and around the warmer months. With the backdrop of Sarajevo's historic charm and the onset of fall, the soft September breeze not only invites contemplation but also enhances the natural beauty of this enchanting city.
Weather in Sarajevo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sarajevo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather tends to be milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 29°C (85°F) and an average of 15°C (59°F). The month experiences about 62 mm (2.4 in) of precipitation over approximately 11 days, accompanied by a moderate humidity level of 65%. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -26°C (-14°F) and averaging around -2°C (28°F), peaking at 13°C (56°F). This winter month sees increased precipitation of 82 mm (3.2 in) spread over about 13 days, coupled with higher humidity at 88%. For a more detailed overview, check out this resource on Sarajevo weather in January.
September and February present stark contrasts in 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). The month sees about 62 mm (2.4 in) of precipitation, spread across approximately 11 days, and a humidity level of 65%. On the other hand, February experiences much colder conditions, with temperatures dipping as low as -15°C (5°F) and peaking at 18°C (65°F), averaging just 2°C (35°F). This month has higher precipitation at 105 mm (4.1 in) over 12 days, coupled with a higher humidity level of 82%. For more detailed insights, you can refer to Sarajevo weather in February.
September and March present stark contrasts in weather. In September, temperatures range from a chilly 0°C (32°F) at night to a warm 29°C (85°F) during the day, averaging around 15°C (59°F), with relatively moderate humidity at 65%. Precipitation is lower, totaling 62 mm (2.4 in) over 11 days. In contrast, March experiences much colder temperatures, with lows dipping to -16°C (3°F) and a max of 20°C (69°F), averaging only 4°C (39°F). This month sees higher precipitation at 104 mm (4.1 in) spread across 14 days, accompanied by increased humidity of 79%. For a more detailed look at March weather, visit Sarajevo weather in March.
In comparing the weather of September and April, one can observe notable differences in temperature and precipitation. September boasts a more moderate temperature range, with minimums around 0°C (32°F) and maximums reaching up to 29°C (85°F), making it generally warmer with an average of 15°C (59°F). In contrast, April presents cooler conditions, starting with minimums of -10°C (13°F) and averaging 8°C (47°F), although it can still reach a pleasant maximum of 24°C (75°F). When it comes to precipitation, April is slightly wetter, with 99 mm (3.9 in) falling over 13 days compared to September's 62 mm (2.4 in) over 11 days. Additionally, humidity levels are higher in April at 75%, compared to September's 65%. For more detailed insights into April weather patterns, you can explore Sarajevo weather in April.
When comparing the weather in September and May, September tends to be warmer overall, with average temperatures reaching 15°C (59°F) and highs of 29°C (85°F). In contrast, May features slightly cooler average temperatures at 12°C (55°F) and a maximum of 26°C (80°F). However, May is notably wetter, receiving 126 mm (4.9 in) of precipitation over 18 days, compared to September's 62 mm (2.4 in) over 11 days. Additionally, humidity levels are slightly higher in May at 74%, compared to 65% in September. For a detailed look at May weather, you can visit Sarajevo weather in May.
When comparing the weather in September and June, we see some notable differences. September experiences a wider temperature range, with minimums dropping to 0°C (32°F) and maximums reaching up to 29°C (85°F), while June's temperatures are generally warmer, hovering between a minimum of 5°C (41°F) and a maximum of 33°C (92°F). Additionally, June tends to have more precipitation, averaging 114 mm (4.5 in) over 16 days, compared to September’s 62 mm (2.4 in) over 11 days. Humidity levels are quite similar in both months, with September at 65% and June slightly higher at 66%. For a detailed look at June weather, visit Sarajevo weather in June.
When comparing the weather in September to that of July, we find notable differences in temperature and precipitation. September experiences a wider temperature range, with minimums dropping to 0°C (32°F) and maximums reaching up to 29°C (85°F), while the average temperature is slightly cooler at 15°C (59°F). In contrast, July is warmer, with minimum temperatures around 7°C (45°F) and maximums soaring to 33°C (92°F), leading to a higher average of 18°C (66°F). Additionally, July sees more precipitation, totaling 96 mm (3.8 in) over 13 days, compared to September's 62 mm (2.4 in) across 11 days. Both months have a moderate level of humidity, but July is slightly drier at 59% compared to September's 65%. For more details on July weather, you can check Sarajevo weather in July.
In comparing the weather between August and September, it is clear that September experiences a wider temperature range, with minimums plummeting to 0°C (32°F) and maximums reaching up to 29°C (85°F), while August maintains milder minimums at 8°C (46°F) and peaks at a hotter 34°C (94°F). Additionally, September sees slightly less precipitation, totaling 62 mm (2.4 in) over 11 days, compared to August's 73 mm (2.9 in) across the same number of days. Humidity levels in September are higher at 65%, indicating a more damp atmosphere than August's 53%. For more detailed insights, check Sarajevo weather in August.
In September, temperatures in Sarajevo 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). Precipitation is relatively moderate at 62 mm (2.4 in) across 11 days, and the humidity hovers around 65%. In contrast, October sees a notable decline in temperatures, with minimums dropping to -3°C (28°F) and average highs reaching 24°C (76°F), averaging 10°C (50°F) overall. The month is rainier, featuring 85 mm (3.3 in) of precipitation over 8 days and a higher humidity of 78%. For more detailed information, you can check Sarajevo weather in October.
In September, temperatures in Sarajevo 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). The month sees about 62 mm (2.4 in) of precipitation over 11 days, coupled with a moderate humidity of 65%. In contrast, November experiences much cooler conditions, with temperatures dropping dramatically to a minimum of -11°C (12°F) and an average of 6°C (43°F), peaking at 19°C (67°F). Precipitation increases to 109 mm (4.3 in) over the same number of days, and humidity rises significantly to 85%. For more detailed information, please visit Sarajevo weather in November.
In September, the weather is considerably milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 29°C (85°F) and an average of 15°C (59°F). The month sees about 62 mm (2.4 in) of precipitation over 11 days, combined with a relative humidity of 65%. In contrast, December brings a sharp drop in temperatures, with minimums plunging to -17°C (2°F) and averages at just 1°C (34°F), peaking at 13°C (55°F). Precipitation increases significantly to 156 mm (6.2 in) over 16 days, accompanied by higher humidity at 86%. For more detailed information, you can check Sarajevo weather in December.
As summer bids farewell, September in Sarajevo introduces a delightful shift in weather, offering a comfortable blend of warmth and crispness. Unlike the sweltering heat of July and August, temperatures begin to cool, inviting outdoor exploration, while average humidity levels provide a refreshing balance. The month is marked by a moderate amount of rain, keeping the landscape lush and vibrant, yet still allowing for plenty of sunny days. With 11 days of precipitation, it's a transitional period where one can experience the best of both summer and autumn. For those considering a visit, September's climate is ideal for enjoying the city’s rich cultural tapestry. Explore more about the region’s weather trends at Sarajevo Climate.