| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 中阵雨 | 23°/16° | 20.1 mm |
| 2025-09-02 | 小毛毛雨 | 22°/15° | 0.1 mm |
| 2025-09-03 | 毛毛雨 | 25°/16° | 1.8 mm |
| 2025-09-04 | 阵雨 | 24°/17° | 3.7 mm |
| 2025-09-05 | 毛毛雨 | 21°/13° | 1.6 mm |
| 2025-09-06 | 阴 | 23°/13° | 0.0 mm |
| 2025-09-07 | 阴 | 27°/15° | 0.0 mm |
| 2025-09-08 | 阵雨 | 23°/17° | 4.7 mm |
| 2025-09-09 | 强阵雨 | 17°/13° | 42.9 mm |
| 2025-09-10 | 阴 | 22°/11° | 0.0 mm |
| 2025-09-11 | 小毛毛雨 | 21°/15° | 1.6 mm |
| 2025-09-12 | 小毛毛雨 | 19°/13° | 0.6 mm |
| 2025-09-13 | 雷阵雨 | 19°/13° | 12.6 mm |
| 2025-09-14 | 小毛毛雨 | 20°/11° | 0.9 mm |
| 2025-09-15 | 毛毛雨 | 21°/16° | 3.2 mm |
| 2025-09-16 | 小毛毛雨 | 19°/14° | 0.7 mm |
| 2025-09-17 | 小毛毛雨 | 18°/13° | 0.3 mm |
| 2025-09-18 | 多云 | 24°/14° | 0.0 mm |
| 2025-09-19 | 阴 | 29°/15° | 0.0 mm |
| 2025-09-20 | 小毛毛雨 | 29°/17° | 0.3 mm |
| 2025-09-21 | 大毛毛雨 | 22°/14° | 5.1 mm |
| 2025-09-22 | 小毛毛雨 | 16°/12° | 0.2 mm |
| 2025-09-23 | 小毛毛雨 | 17°/11° | 0.3 mm |
| 2025-09-24 | 阴 | 17°/10° | 0.0 mm |
| 2025-09-25 | 小雨 | 10°/9° | 11.3 mm |
| 2025-09-26 | 小毛毛雨 | 17°/9° | 0.7 mm |
| 2025-09-27 | 阴 | 18°/12° | 0.0 mm |
| 2025-09-28 | 阴 | 20°/10° | 0.0 mm |
| 2025-09-29 | 小毛毛雨 | 19°/14° | 0.9 mm |
| 2025-09-30 | 毛毛雨 | 17°/11° | 2.8 mm |
2025年09月科隆共记录 30 天，平均最高 20℃、最低 13℃，降水日 22 天。