| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | 20°/10° | 0.0 mm |
| 2025-12-02 | 阴 | 18°/12° | 0.0 mm |
| 2025-12-03 | 小毛毛雨 | 14°/9° | 0.9 mm |
| 2025-12-04 | 阴 | 10°/7° | 0.0 mm |
| 2025-12-05 | 阴 | 12°/6° | 0.0 mm |
| 2025-12-06 | 阴 | 12°/6° | 0.0 mm |
| 2025-12-07 | 晴天 | 15°/8° | 0.0 mm |
| 2025-12-08 | 阴 | 17°/8° | 0.0 mm |
| 2025-12-09 | 阴 | 11°/9° | 0.0 mm |
| 2025-12-10 | 阴 | 13°/7° | 0.0 mm |
| 2025-12-11 | 阴 | 15°/8° | 0.0 mm |
| 2025-12-12 | 阴 | 14°/5° | 0.0 mm |
| 2025-12-13 | 小毛毛雨 | 8°/4° | 0.3 mm |
| 2025-12-14 | 大雨 | 8°/5° | 43.0 mm |
| 2025-12-15 | 晴天 | 12°/7° | 0.0 mm |
| 2025-12-16 | 阴 | 12°/7° | 0.0 mm |
| 2025-12-17 | 阴 | 13°/6° | 0.0 mm |
| 2025-12-18 | 阴 | 12°/7° | 0.0 mm |
| 2025-12-19 | 阴 | 13°/6° | 0.0 mm |
| 2025-12-20 | 阵雨 | 16°/9° | 7.8 mm |
| 2025-12-21 | 中阵雨 | 18°/13° | 15.4 mm |
| 2025-12-22 | 小毛毛雨 | 13°/7° | 0.5 mm |
| 2025-12-23 | 阴 | 10°/4° | 0.0 mm |
| 2025-12-24 | 大雨 | 9°/7° | 23.9 mm |
| 2025-12-25 | 小毛毛雨 | 15°/8° | 0.7 mm |
| 2025-12-26 | 小毛毛雨 | 11°/3° | 0.3 mm |
| 2025-12-27 | 阴 | 7°/2° | 0.0 mm |
| 2025-12-28 | 晴天 | 11°/3° | 0.0 mm |
| 2025-12-29 | 阴 | 12°/7° | 0.0 mm |
| 2025-12-30 | 阴 | 14°/8° | 0.0 mm |
| 2025-12-31 | 阴 | 12°/7° | 0.0 mm |
2025年12月市原市共记录 31 天，平均最高 12℃、最低 6℃，降水日 9 天。