| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 毛毛雨 | 18°/7° | 2.7 mm |
| 2025-09-02 | 阴 | 22°/7° | 0.0 mm |
| 2025-09-03 | 雷阵雨 | 21°/9° | 4.9 mm |
| 2025-09-04 | 阴 | 22°/7° | 0.0 mm |
| 2025-09-05 | 中阵雨 | 20°/8° | 19.5 mm |
| 2025-09-06 | 毛毛雨 | 10°/7° | 4.6 mm |
| 2025-09-07 | 阵雨 | 8°/6° | 14.1 mm |
| 2025-09-08 | 毛毛雨 | 13°/7° | 5.1 mm |
| 2025-09-09 | 小毛毛雨 | 14°/7° | 0.5 mm |
| 2025-09-10 | 小毛毛雨 | 16°/7° | 0.2 mm |
| 2025-09-11 | 阵雨 | 16°/7° | 4.1 mm |
| 2025-09-12 | 毛毛雨 | 17°/7° | 3.8 mm |
| 2025-09-13 | 毛毛雨 | 16°/4° | 0.6 mm |
| 2025-09-14 | 中阵雨 | 12°/6° | 25.2 mm |
| 2025-09-15 | 毛毛雨 | 16°/6° | 0.8 mm |
| 2025-09-16 | 中雨 | 12°/2° | 7.8 mm |
| 2025-09-17 | 毛毛雨 | 15°/1° | 1.3 mm |
| 2025-09-18 | 小毛毛雨 | 15°/3° | 0.7 mm |
| 2025-09-19 | 小毛毛雨 | 14°/4° | 1.4 mm |
| 2025-09-20 | 小毛毛雨 | 16°/2° | 0.1 mm |
| 2025-09-21 | 多云 | 17°/3° | 0.0 mm |
| 2025-09-22 | 阴 | 18°/5° | 0.0 mm |
| 2025-09-23 | 中阵雨 | 18°/7° | 7.7 mm |
| 2025-09-24 | 大毛毛雨 | 11°/9° | 10.2 mm |
| 2025-09-25 | 毛毛雨 | 13°/7° | 2.9 mm |
| 2025-09-26 | 阴 | 19°/6° | 0.0 mm |
| 2025-09-27 | 阴 | 20°/7° | 0.0 mm |
| 2025-09-28 | 毛毛雨 | 18°/7° | 1.0 mm |
| 2025-09-29 | 小毛毛雨 | 20°/7° | 0.5 mm |
| 2025-09-30 | 小毛毛雨 | 18°/7° | 0.3 mm |
2025年09月根河市共记录 30 天，平均最高 16℃、最低 5℃，降水日 24 天。