Click on a day for an hourly weather forecast
The weather in Banja Luka in January is very cold with temperatures between -3°C and 5°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Banja Luka during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Banja Luka is going to experience quite a number of days of snow during January. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Banja Luka in January 2026.
If you’re planning to visit Banja Luka in the near future, we highly recommend that you review the 14 day weather forecast for Banja Luka before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / -3° | 7 | 12 | 12 | 113 mm | Awful | Banja Luka in January |
| February | 7° / -1° | 7 | 13 | 9 | 121 mm | Awful | Banja Luka in February |
| March | 12° / 1° | 8 | 18 | 5 | 125 mm | Awful | Banja Luka in March |
| April | 17° / 4° | 9 | 20 | 1 | 131 mm | Ok | Banja Luka in April |
| May | 21° / 7° | 11 | 20 | 0 | 198 mm | Ok | Banja Luka in May |
| June | 26° / 11° | 10 | 20 | 0 | 162 mm | Good | Banja Luka in June |
| July | 29° / 12° | 7 | 25 | 0 | 107 mm | Ok | Banja Luka in July |
| August | 29° / 12° | 5 | 26 | 0 | 77 mm | Good | Banja Luka in August |
| September | 23° / 9° | 5 | 25 | 0 | 101 mm | Perfect | Banja Luka in September |
| October | 18° / 6° | 6 | 25 | 0 | 103 mm | Good | Banja Luka in October |
| November | 13° / 4° | 6 | 21 | 3 | 93 mm | Bad | Banja Luka in November |
| December | 6° / -1° | 6 | 17 | 7 | 105 mm | Awful | Banja Luka in December |