Is it warm enough to swim in Groningen in September? Average water temperature in Groningen in September is 15.7°C and therefore is not suitable for comfortable swimming. The warmest water in Groningen in September is 20°C, and the coldest is 11°C. To find out the water temperature today and in the coming days, go to Current water temperature in Groningen
To get an accurate forecast for the water temperature in Groningen for any chosen month, compare two years within a 10 year range using the chart below.
Day | 2025 | 2024 |
---|---|---|
1 September | 18°C | 19°C |
2 September | 18°C | 19°C |
3 September | 18°C | 19°C |
4 September | 17°C | 19°C |
5 September | 18°C | 19°C |
6 September | 17°C | 19°C |
7 September | 19°C | |
8 September | 19°C | |
9 September | 17°C | |
10 September | 16°C | |
11 September | 15°C | |
12 September | 14°C | |
13 September | 13°C | |
14 September | 13°C | |
15 September | 13°C |
Day | 2025 | 2024 |
---|---|---|
16 September | 14°C | |
17 September | 15°C | |
18 September | 15°C | |
19 September | 16°C | |
20 September | 16°C | |
21 September | 16°C | |
22 September | 16°C | |
23 September | 15°C | |
24 September | 15°C | |
25 September | 15°C | |
26 September | 14°C | |
27 September | 13°C | |
28 September | 13°C | |
29 September | 12°C | |
30 September | 12°C |
You can also view information about water temperature for other months by clicking on the month button below