| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 小毛毛雨 | 14°/8° | 0.8 mm |
| 2025-12-02 | 小毛毛雨 | 12°/6° | 0.1 mm |
| 2025-12-03 | 小毛毛雨 | 8°/0° | 0.6 mm |
| 2025-12-04 | 阴 | 4°/0° | 0.0 mm |
| 2025-12-05 | 小毛毛雨 | 5°/-1° | 0.4 mm |
| 2025-12-06 | 阴 | 8°/-1° | 0.0 mm |
| 2025-12-07 | 小毛毛雨 | 13°/2° | 0.4 mm |
| 2025-12-08 | 小毛毛雨 | 10°/3° | 0.3 mm |
| 2025-12-09 | 晴天 | 8°/1° | 0.0 mm |
| 2025-12-10 | 阴 | 9°/1° | 0.0 mm |
| 2025-12-11 | 毛毛雨 | 13°/3° | 2.5 mm |
| 2025-12-12 | 小毛毛雨 | 8°/-1° | 1.0 mm |
| 2025-12-13 | 小雨 | 7°/-2° | 5.2 mm |
| 2025-12-14 | 阵雨 | 8°/3° | 5.2 mm |
| 2025-12-15 | 阴 | 6°/0° | 0.0 mm |
| 2025-12-16 | 阴 | 8°/0° | 0.0 mm |
| 2025-12-17 | 中雨 | 9°/3° | 12.1 mm |
| 2025-12-18 | 多云 | 11°/3° | 0.0 mm |
| 2025-12-19 | 阴 | 13°/3° | 0.0 mm |
| 2025-12-20 | 毛毛雨 | 15°/10° | 1.8 mm |
| 2025-12-21 | 中阵雨 | 12°/4° | 13.0 mm |
| 2025-12-22 | 小毛毛雨 | 7°/2° | 0.5 mm |
| 2025-12-23 | 阴 | 10°/1° | 0.0 mm |
| 2025-12-24 | 阵雨 | 11°/7° | 10.9 mm |
| 2025-12-25 | 阵雨 | 9°/0° | 11.5 mm |
| 2025-12-26 | 小阵雪 | 0°/-2° | 1.1 mm |
| 2025-12-27 | 阴 | 2°/-2° | 0.0 mm |
| 2025-12-28 | 小毛毛雨 | 6°/0° | 0.2 mm |
| 2025-12-29 | 小毛毛雨 | 8°/1° | 1.1 mm |
| 2025-12-30 | 小毛毛雨 | 8°/2° | 0.3 mm |
| 2025-12-31 | 阴 | 4°/0° | 0.0 mm |
2025年12月萩市共记录 31 天，平均最高 8℃、最低 1℃，降水日 20 天。