| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 阴 | 22°/12° | 0.0 mm |
| 2025-05-02 | 强阵雨 | 17°/14° | 35.0 mm |
| 2025-05-03 | 小毛毛雨 | 21°/12° | 0.6 mm |
| 2025-05-04 | 阵雨 | 21°/12° | 2.5 mm |
| 2025-05-05 | 阴 | 20°/10° | 0.0 mm |
| 2025-05-06 | 中阵雨 | 16°/13° | 26.3 mm |
| 2025-05-07 | 阵雨 | 20°/12° | 7.4 mm |
| 2025-05-08 | 阴 | 19°/12° | 0.0 mm |
| 2025-05-09 | 毛毛雨 | 21°/12° | 0.7 mm |
| 2025-05-10 | 毛毛雨 | 20°/14° | 5.0 mm |
| 2025-05-11 | 阴 | 21°/15° | 0.0 mm |
| 2025-05-12 | 小雨 | 15°/13° | 12.4 mm |
| 2025-05-13 | 小毛毛雨 | 23°/13° | 0.1 mm |
| 2025-05-14 | 阴 | 22°/15° | 0.0 mm |
| 2025-05-15 | 阴 | 23°/15° | 0.0 mm |
| 2025-05-16 | 阴 | 24°/17° | 0.0 mm |
| 2025-05-17 | 强阵雨 | 21°/17° | 40.3 mm |
| 2025-05-18 | 毛毛雨 | 27°/19° | 0.7 mm |
| 2025-05-19 | 大毛毛雨 | 20°/13° | 4.5 mm |
| 2025-05-20 | 阴 | 29°/13° | 0.0 mm |
| 2025-05-21 | 阴 | 28°/18° | 0.0 mm |
| 2025-05-22 | 小毛毛雨 | 22°/14° | 0.2 mm |
| 2025-05-23 | 小毛毛雨 | 19°/14° | 0.7 mm |
| 2025-05-24 | 小雨 | 19°/13° | 3.9 mm |
| 2025-05-25 | 阵雨 | 17°/13° | 23.8 mm |
| 2025-05-26 | 小毛毛雨 | 21°/14° | 0.2 mm |
| 2025-05-27 | 阴 | 18°/14° | 0.0 mm |
| 2025-05-28 | 阴 | 20°/14° | 0.0 mm |
| 2025-05-29 | 阴 | 21°/14° | 0.0 mm |
| 2025-05-30 | 中阵雨 | 16°/13° | 25.8 mm |
| 2025-05-31 | 中阵雨 | 15°/14° | 11.1 mm |
2025年05月水户市共记录 31 天，平均最高 20℃、最低 13℃，降水日 19 天。