| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阵雨 | 9°/5° | 21.3 mm |
| 2025-12-02 | 小毛毛雨 | 6°/4° | 1.4 mm |
| 2025-12-03 | 毛毛雨 | 6°/3° | 3.9 mm |
| 2025-12-04 | 中阵雨 | 6°/2° | 14.1 mm |
| 2025-12-05 | 阵雨 | 8°/2° | 14.7 mm |
| 2025-12-06 | 中阵雨 | 8°/6° | 10.8 mm |
| 2025-12-07 | 阵雨 | 8°/5° | 15.0 mm |
| 2025-12-08 | 毛毛雨 | 8°/7° | 2.2 mm |
| 2025-12-09 | 中雨 | 11°/7° | 15.9 mm |
| 2025-12-10 | 小毛毛雨 | 8°/7° | 1.2 mm |
| 2025-12-11 | 阵雨 | 9°/7° | 6.5 mm |
| 2025-12-12 | 中雨 | 7°/4° | 7.0 mm |
| 2025-12-13 | 毛毛雨 | 8°/5° | 1.6 mm |
| 2025-12-14 | 阵雨 | 9°/8° | 19.1 mm |
| 2025-12-15 | 中雨 | 9°/3° | 9.2 mm |
| 2025-12-16 | 阴 | 5°/2° | 0.0 mm |
| 2025-12-17 | 中阵雨 | 9°/4° | 20.1 mm |
| 2025-12-18 | 阵雨 | 7°/4° | 8.6 mm |
| 2025-12-19 | 小毛毛雨 | 6°/4° | 0.7 mm |
| 2025-12-20 | 小毛毛雨 | 6°/5° | 0.4 mm |
| 2025-12-21 | 小毛毛雨 | 6°/4° | 0.7 mm |
| 2025-12-22 | 中阵雨 | 7°/5° | 10.0 mm |
| 2025-12-23 | 阴 | 6°/5° | 0.0 mm |
| 2025-12-24 | 阴 | 4°/2° | 0.0 mm |
| 2025-12-25 | 晴天 | 2°/0° | 0.0 mm |
| 2025-12-26 | 晴天 | 3°/1° | 0.0 mm |
| 2025-12-27 | 晴天 | 3°/0° | 0.0 mm |
| 2025-12-28 | 阴 | 4°/0° | 0.0 mm |
| 2025-12-29 | 阴 | 2°/0° | 0.0 mm |
| 2025-12-30 | 阴 | 2°/-1° | 0.0 mm |
| 2025-12-31 | 阴 | 3°/-1° | 0.0 mm |
2025年12月马恩岛共记录 31 天，平均最高 6℃、最低 3℃，降水日 21 天。