| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 毛毛雨 | 10°/6° | 1.7 mm |
| 2025-12-02 | 小雨 | 9°/5° | 4.6 mm |
| 2025-12-03 | 阴 | 11°/4° | 0.0 mm |
| 2025-12-04 | 大毛毛雨 | 10°/5° | 2.6 mm |
| 2025-12-05 | 阴 | 12°/6° | 0.0 mm |
| 2025-12-06 | 小毛毛雨 | 12°/4° | 0.2 mm |
| 2025-12-07 | 小毛毛雨 | 14°/8° | 0.3 mm |
| 2025-12-08 | 阴 | 14°/6° | 0.0 mm |
| 2025-12-09 | 多云 | 14°/6° | 0.0 mm |
| 2025-12-10 | 晴天 | 14°/6° | 0.0 mm |
| 2025-12-11 | 晴天 | 13°/6° | 0.0 mm |
| 2025-12-12 | 晴天 | 13°/6° | 0.0 mm |
| 2025-12-13 | 晴天 | 13°/5° | 0.0 mm |
| 2025-12-14 | 阴 | 12°/4° | 0.0 mm |
| 2025-12-15 | 阴 | 11°/4° | 0.0 mm |
| 2025-12-16 | 小雨 | 10°/8° | 9.0 mm |
| 2025-12-17 | 小雨 | 14°/9° | 7.4 mm |
| 2025-12-18 | 阴 | 15°/8° | 0.0 mm |
| 2025-12-19 | 毛毛雨 | 13°/9° | 1.0 mm |
| 2025-12-20 | 阴 | 13°/8° | 0.0 mm |
| 2025-12-21 | 阴 | 12°/6° | 0.0 mm |
| 2025-12-22 | 小毛毛雨 | 13°/6° | 0.2 mm |
| 2025-12-23 | 小雨 | 10°/9° | 10.2 mm |
| 2025-12-24 | 阵雨 | 10°/8° | 15.3 mm |
| 2025-12-25 | 中阵雨 | 11°/7° | 8.5 mm |
| 2025-12-26 | 阴 | 10°/3° | 0.0 mm |
| 2025-12-27 | 晴天 | 11°/2° | 0.0 mm |
| 2025-12-28 | 晴天 | 11°/2° | 0.0 mm |
| 2025-12-29 | 晴天 | 11°/2° | 0.0 mm |
| 2025-12-30 | 小毛毛雨 | 7°/3° | 0.5 mm |
| 2025-12-31 | 晴间多云 | 7°/0° | 0.0 mm |
2025年12月锡耶纳共记录 31 天，平均最高 11℃、最低 5℃，降水日 13 天。