Typically the average temperate in Kassel right through September is 14 with a normal high in the month being 20 degrees with a low of 12. We have provided a clearer breakdown here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 20 |
| Low Temperature | 12 |
Useful Links: Kassel Weather: Average Weather & Yearly Climate