Is it warm enough to swim in Banja Luka in September? Average water temperature in Banja Luka in September is 19.2°C and therefore is not suitable for comfortable swimming. The warmest water in Banja Luka in September is 25°C, and the coldest is 12°C. To find out the water temperature today and in the coming days, go to Current water temperature in Banja Luka
To get an accurate forecast for the water temperature in Banja Luka for any chosen month, compare two years within a 10 year range using the chart below.
Day | 2025 | 2024 |
---|---|---|
1 September | 22°C | 25°C |
2 September | 21°C | 25°C |
3 September | 21°C | 25°C |
4 September | 20°C | 25°C |
5 September | 21°C | 25°C |
6 September | 21°C | 24°C |
7 September | 21°C | 24°C |
8 September | 23°C | |
9 September | 22°C | |
10 September | 22°C | |
11 September | 20°C | |
12 September | 18°C | |
13 September | 16°C | |
14 September | 15°C | |
15 September | 14°C |
Day | 2025 | 2024 |
---|---|---|
16 September | 13°C | |
17 September | 12°C | |
18 September | 13°C | |
19 September | 14°C | |
20 September | 15°C | |
21 September | 15°C | |
22 September | 16°C | |
23 September | 17°C | |
24 September | 17°C | |
25 September | 18°C | |
26 September | 19°C | |
27 September | 18°C | |
28 September | 17°C | |
29 September | 16°C | |
30 September | 15°C |
You can also view information about water temperature for other months by clicking on the month button below