Average temperatures within Compiegne in September is 14. Average highs are typically 21 with lows about 11. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 21 |
| Low Temperature | 11 |
| Sunshine Per Day | 6 |
Useful Links: Compiegne Weather: Average Weather & Yearly Climate