| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-05-01 | 阴 | 21°/12° | 0.0 mm |
| 2026-05-02 | 阴 | 21°/13° | 0.0 mm |
| 2026-05-03 | 阵雨 | 16°/11° | 8.2 mm |
| 2026-05-04 | 阵雨 | 18°/9° | 1.8 mm |
| 2026-05-05 | 晴天 | 20°/10° | 0.0 mm |
| 2026-05-06 | 阴 | 23°/11° | 0.0 mm |
| 2026-05-07 | 毛毛雨 | 22°/13° | 1.2 mm |
| 2026-05-08 | 小毛毛雨 | 19°/12° | 0.1 mm |
| 2026-05-09 | 阴 | 21°/11° | 0.0 mm |
| 2026-05-10 | 阴 | 24°/13° | 0.0 mm |
| 2026-05-11 | 毛毛雨 | 20°/13° | 3.8 mm |
| 2026-05-12 | 毛毛雨 | 23°/15° | 1.8 mm |
| 2026-05-13 | 阴 | 25°/14° | 0.0 mm |
| 2026-05-14 | 阴 | 30°/17° | 0.0 mm |
| 2026-05-15 | 晴天 | 30°/18° | 0.0 mm |
| 2026-05-16 | 阴 | 28°/18° | 0.0 mm |
| 2026-05-17 | 阴 | 27°/17° | 0.0 mm |
| 2026-05-18 | 阴 | 29°/18° | 0.0 mm |
| 2026-05-19 | 阴 | 26°/19° | 0.0 mm |
| 2026-05-20 | 大雨 | 23°/15° | 63.7 mm |
| 2026-05-21 | 阵雨 | 17°/15° | 6.0 mm |
| 2026-05-22 | 阴 | 26°/15° | 0.0 mm |
| 2026-05-23 | 小毛毛雨 | 23°/16° | 0.5 mm |
| 2026-05-24 | 阴 | 28°/16° | 0.0 mm |
| 2026-05-25 | 阴 | 29°/19° | 0.0 mm |
| 2026-05-26 | 毛毛雨 | 30°/22° | 2.0 mm |
| 2026-05-27 | 阵雨 | 24°/20° | 2.2 mm |
| 2026-05-28 | 小毛毛雨 | 25°/17° | 0.4 mm |
| 2026-05-29 | 多云 | 27°/15° | 0.0 mm |
| 2026-05-30 | 晴天 | 27°/16° | 0.0 mm |
| 2026-05-31 | 阴 | 30°/18° | 0.0 mm |
2026年05月水原市共记录 31 天，平均最高 24℃、最低 15℃，降水日 12 天。