| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 小毛毛雨 | 22°/17° | 0.4 mm |
| 2025-05-02 | 毛毛雨 | 23°/15° | 1.5 mm |
| 2025-05-03 | 大雨 | 18°/12° | 26.7 mm |
| 2025-05-04 | 雾 | 17°/9° | 0.0 mm |
| 2025-05-05 | 雾 | 16°/7° | 0.0 mm |
| 2025-05-06 | 多云 | 21°/9° | 0.0 mm |
| 2025-05-07 | 小毛毛雨 | 17°/12° | 0.4 mm |
| 2025-05-08 | 阴 | 25°/14° | 0.0 mm |
| 2025-05-09 | 雾 | 24°/14° | 0.0 mm |
| 2025-05-10 | 大毛毛雨 | 17°/11° | 2.2 mm |
| 2025-05-11 | 毛毛雨 | 18°/12° | 1.1 mm |
| 2025-05-12 | 中阵雨 | 21°/15° | 28.1 mm |
| 2025-05-13 | 雾 | 21°/15° | 0.0 mm |
| 2025-05-14 | 大雨 | 24°/15° | 23.4 mm |
| 2025-05-15 | 雾 | 26°/17° | 0.0 mm |
| 2025-05-16 | 阴 | 27°/19° | 0.0 mm |
| 2025-05-17 | 阴 | 27°/19° | 0.0 mm |
| 2025-05-18 | 阴 | 26°/17° | 0.0 mm |
| 2025-05-19 | 中雨 | 26°/17° | 3.3 mm |
| 2025-05-20 | 阴 | 27°/18° | 0.0 mm |
| 2025-05-21 | 小毛毛雨 | 24°/17° | 0.8 mm |
| 2025-05-22 | 阴 | 23°/13° | 0.0 mm |
| 2025-05-23 | 晴间多云 | 21°/11° | 0.0 mm |
| 2025-05-24 | 阴 | 20°/11° | 0.0 mm |
| 2025-05-25 | 小毛毛雨 | 20°/15° | 0.8 mm |
| 2025-05-26 | 中雨 | 25°/16° | 2.9 mm |
| 2025-05-27 | 中雨 | 15°/13° | 13.8 mm |
| 2025-05-28 | 阴 | 23°/13° | 0.0 mm |
| 2025-05-29 | 中雨 | 22°/16° | 4.4 mm |
| 2025-05-30 | 雾 | 22°/14° | 0.0 mm |
| 2025-05-31 | 阴 | 23°/10° | 0.0 mm |
2025年05月海伦共记录 31 天，平均最高 21℃、最低 13℃，降水日 14 天。