| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 大毛毛雨 | 13°/10° | 9.0 mm |
| 2025-09-02 | 小毛毛雨 | 14°/8° | 1.3 mm |
| 2025-09-03 | 中阵雨 | 12°/10° | 11.4 mm |
| 2025-09-04 | 小毛毛雨 | 14°/8° | 0.2 mm |
| 2025-09-05 | 阴 | 13°/9° | 0.0 mm |
| 2025-09-06 | 小毛毛雨 | 16°/11° | 0.2 mm |
| 2025-09-07 | 中阵雨 | 15°/10° | 18.3 mm |
| 2025-09-08 | 毛毛雨 | 13°/8° | 1.7 mm |
| 2025-09-09 | 毛毛雨 | 13°/10° | 1.3 mm |
| 2025-09-10 | 中阵雨 | 12°/9° | 14.7 mm |
| 2025-09-11 | 毛毛雨 | 10°/8° | 7.7 mm |
| 2025-09-12 | 毛毛雨 | 11°/7° | 6.4 mm |
| 2025-09-13 | 大毛毛雨 | 10°/7° | 8.7 mm |
| 2025-09-14 | 大毛毛雨 | 13°/7° | 7.5 mm |
| 2025-09-15 | 阵雨 | 11°/9° | 9.3 mm |
| 2025-09-16 | 毛毛雨 | 13°/9° | 2.4 mm |
| 2025-09-17 | 中阵雨 | 15°/9° | 23.8 mm |
| 2025-09-18 | 小毛毛雨 | 14°/9° | 0.2 mm |
| 2025-09-19 | 阵雨 | 14°/11° | 20.8 mm |
| 2025-09-20 | 中阵雨 | 12°/6° | 22.8 mm |
| 2025-09-21 | 大毛毛雨 | 10°/4° | 1.3 mm |
| 2025-09-22 | 阴 | 10°/4° | 0.0 mm |
| 2025-09-23 | 阴 | 11°/4° | 0.0 mm |
| 2025-09-24 | 阴 | 12°/4° | 0.0 mm |
| 2025-09-25 | 小毛毛雨 | 12°/7° | 0.3 mm |
| 2025-09-26 | 阴 | 12°/8° | 0.0 mm |
| 2025-09-27 | 强阵雨 | 11°/7° | 13.9 mm |
| 2025-09-28 | 小毛毛雨 | 11°/5° | 0.2 mm |
| 2025-09-29 | 小毛毛雨 | 11°/5° | 0.4 mm |
| 2025-09-30 | 大毛毛雨 | 13°/10° | 3.2 mm |
2025年09月马恩岛共记录 30 天，平均最高 12℃、最低 7℃，降水日 25 天。