Weather in Banja Luka for September 2027
In general, the average temperature in Banja Luka at the beginning of September is 29.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °C by the end of September.
Banja Luka experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 83 mm.
Is September a good time to visit Banja Luka? check out the best time to travel to Banja Luka page.
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Banja Luka Weather September
Temperatures trend during September in Banja Luka
September weather in Banja Luka day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 30° /14° | 0 mm | 7 | |
| 2 Sept. | Sunny | 31° /14° | 0 mm | 7.2 | |
| 3 Sept. | Sunny | 29° /14° | 0.7 mm | 7 | |
| 4 Sept. |  Light rain shower | 30° /14° | 0.5 mm | 7 | |
| 5 Sept. |  Partly cloudy | 31° /14° | 0.8 mm | 6.9 | |
| 6 Sept. | Sunny | 27° /13° | 0.7 mm | 6 | |
| 7 Sept. | Sunny | 30° /13° | 0 mm | 6.7 | |
| 8 Sept. | Sunny | 32° /14° | 0.4 mm | 6.6 | |
| 9 Sept. |  Light rain | 30° /15° | 3 mm | 6 | |
| 10 Sept. | Patchy rain possible | 26° /13° | 1 mm | 5 | |
| 11 Sept. | Light rain | 26° /13° | 3.7 mm | 6 | |
| 12 Sept. | Patchy rain possible | 27° /12° | 0.4 mm | 6 | |
| 13 Sept. | Light rain | 22° /11° | 7.9 mm | 5 | |
| 14 Sept. | Light rain | 21° /12° | 3.4 mm | 4 | |
| 15 Sept. | Light rain | 21° /11° | 5.6 mm | 4 | |
| 16 Sept. | Light rain | 23° /11° | 5.6 mm | 5 | |
| 17 Sept. | Partly cloudy | 22° /11° | 0.7 mm | 5 | |
| 18 Sept. | Sunny | 25° /11° | 0.3 mm | 5 | |
| 19 Sept. | Light rain shower | 26° /13° | 2 mm | 5 | |
| 20 Sept. | Partly cloudy | 26° /12° | 0.4 mm | 5.5 | |
| 21 Sept. | Patchy rain possible | 26° /12° | 0.3 mm | 5 | |
| 22 Sept. | Sunny | 25° /11° | 0.5 mm | 5.3 | |
| 23 Sept. |  Moderate rain | 22° /10° | 13.6 mm | 5.2 | |
| 24 Sept. | Moderate rain | 21° /10° | 11.2 mm | 4 | |
| 25 Sept. | Light rain | 17° /10° | 6.2 mm | 3 | |
| 26 Sept. | Patchy rain possible | 22° /10° | 0 mm | 5 | |
| 27 Sept. | Sunny | 24° /10° | 0 mm | 4.9 | |
| 28 Sept. | Moderate rain | 21° /10° | 10.4 mm | 4.8 | |
| 29 Sept. | Light rain | 19° /8° | 3.3 mm | 4.7 | |
| 30 Sept. | Partly cloudy | 20° /8° | 0.3 mm | 4.6 | |
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Guide for Banja Luka in September
In Banja Luka, Bosnia and Herzegovina, September marks the transition from summer to autumn, bringing about noticeable changes in the weather.
At the beginning of the month, the weather in Banja Luka is generally warm and pleasant, with average daytime temperatures around 24° and occasional showers.
As the month progresses, the temperatures gradually begin to decrease, and by the end of September, the weather becomes cooler with average daytime temperatures around 18°. The evenings and nights tend to be cooler, with temperatures dropping to around 10° towards the end of the month.
The weather in Banja Luka during September is characterized by decreasing daylight hours and a gradual shift towards autumnal conditions.
Travelers visiting Banja Luka during this time can expect comfortable weather for outdoor activities at the beginning of the month, while towards the end, they may need to pack some warmer clothing for the cooler evenings.
Overall, September in Banja Luka offers a pleasant transition from summer to autumn, allowing visitors to enjoy the changing colors of the surrounding nature and the cultural attractions of the city.
Banja Luka in September - FAQ
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September rainfall patterns in Banja Luka
UV exposure in Banja Luka during September
Where is Banja Luka?Get accurate weather forecasts for Banja Luka, located at latitude 44.778 and longitude 17.194. Stay updated with localized weather information tailored for Banja Luka.